If tan 8 = 3 and 8 lies in the second quadrant. Use a Pythagorean identity to find
the exact value of cos 6.

Answers

Answer 1

The exact value of Cosθ is -1/√10 .

In the question ,

it is given that ,

the value of tanθ = 3/1 ,

that means the perpendicular = 3x

and the base of the triangle is = 1x,

So ,By Pythagoras Theorem

hypotnuse² = perpendicular² + base²

hypotnuse² = (3x)² + (1x)²

hypotnuse² = 9x² + 1x²

hypotnuse² = 10x²

hypotnuse = (√10)x

So , Cosθ = base / hypotnuse

Cosθ = 1x/(√10)x

Cosθ = 1/√10

Since , \(\theta\) lies in the second quadrant ,

and in second quadrant Cos is negative ,

So , Cosθ = -1/√10

Therefore , The exact value of Cosθ is  -1/√10  .

The given question is incomplete , the complete question is

If Tanθ = 3 , θ lies in the second quadrant. Use a Pythagorean identity to find the exact value of Cosθ ?

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Related Questions

How does a recipient not-for-profit entity record the receipt of a gift that will be transferred without restriction to another charitable entity? What if the donor retains the right to revoke or redirect the gift?

Answers

If the gift is transferred without restriction to another charitable entity, the recipient not-for-profit entity should record the receipt of the gift as a contribution in its financial records. The contribution should be recorded at the fair market value of the gift at the time of receipt.

If the donor retains the right to revoke or redirect the gift, the recipient not-for-profit entity should record the receipt of the gift as a liability in its financial records. The liability should be recorded at the fair market value of the gift at the time of receipt.

When a recipient not-for-profit entity receives a gift for transfer to another charitable entity, it records it as revenue upon receipt.

If the donor retains the right to revoke or redirect the gift, it's recognized as a "Contribution Receivable" liability until the restrictions lapse or are fulfilled. Consult accountants for proper accounting.

When a recipient not-for-profit entity receives a gift that will be transferred without restriction to another charitable entity,

The accounting treatment typically involves two steps:

Recognition on Receipt:

The recipient not-for-profit entity should recognize the gift as revenue or contribution in its financial records upon receipt.

This is because the organization has legal control and possession of the gift, even if it intends to transfer it to another charitable entity.

The accounting entry will depend on the nature of the gift received ( cash, securities, in-kind donation).

Classification as a "Contribution to be Transferred":

The second step involves classifying the received gift as a "Contribution to be Transferred" on the recipient's balance sheet.

This classification reflects that the entity intends to pass the gift along to another charitable entity

and that the funds are not restricted for use within the recipient organization.

If the donor retains the right to revoke or redirect the gift,

The recipient not-for-profit entity should follow the guidelines for recognizing contributions subject to donor restrictions.

Until the restrictions lapse or are fulfilled, the contribution should be recorded as a liability ( "Contribution Receivable").

Accounting for contributions with donor-imposed restrictions can be complex,

and the specific treatment will depend on the terms of the gift and applicable accounting standards.

It's essential for the not-for-profit organization to consult with its accountants

or financial advisors to ensure compliance with relevant accounting principles and reporting requirements.

Also, it's important to note that accounting standards and regulations may vary across different countries or regions,

so organizations should adhere to the accounting principles applicable in their specific jurisdiction.

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Catie keeps dogs and cats in her place. The number of cats is three times the number of dogs. What is a greatest number of cats if the total number does not exceed 58??​

Answers

Answer:

3:1 and im wrong

Step-by-step explanation:

The solution of the equation 3x + 4 =1 is a) 1 b) 0 c) -1 d) 2​

Answers

Hello!

3x + 4 = 1

3x + 4 - 4 = 1 - 4

3x = -3

3x/3 = -3/3

x = -1

The solution of the equation 3x + 4 = 1 is -1.

The answer is:

C) x = -1

Work/explanation:

To solve this equation, I subtract 4 from each side:

\(\sf{3x+4=1}\)

Subtract :

\(\sf{3x=-3}\)

Divide each side by 3:

\(\sf{x=-1}\)

Hence, C is correct.

Which exponential function matches the table?
х
0
1
2
3
4
f(x)
27
9
3
1
1
3
A. f(x) = 27(3)*
=
OB. f(x) = 27(3)*
OC. f(x) = 3(1)
3*
O D. f(x) = 27(0)
*
C.
х
=

Which exponential function matches the table?01234f(x)2793113A. f(x) = 27(3)*=OB. f(x) = 27(3)*OC. f(x)

Answers

Answer:

Option B is the correct answer.

Step-by-step explanation:

\(f(x)=27\bigg(\frac{1}{3}\bigg)^x\) matches the table.

• When x = 0

\(\implies f(x)=27\bigg(\frac{1}{3}\bigg)^0= 27*1=27\)

•When x = 1

\(\implies f(x)=27\bigg(\frac{1}{3}\bigg)^1= 27*\frac{1}{3}=9\)

•When x = 2

\(\implies f(x)=27\bigg(\frac{1}{3}\bigg)^2= 27*\frac{1}{9}=3\)

•When x = 3

\(\implies f(x)=27\bigg(\frac{1}{3}\bigg)^3= 27*\frac{1}{27}=1\)

•When x = 4

\(\implies f(x)=27\bigg(\frac{1}{3}\bigg)^4= 27*\frac{1}{81}=\frac{1}{3}\)

What is the length of each leg of the triangle below?
45°
90⁰
22
OA. 15
B. √22
C. 11
45°
D. 11/2
E. VIT
F. 1

What is the length of each leg of the triangle below?459022OA. 15B. 22C. 1145D. 11/2 E. VITF. 1

Answers

Answer:

A. 15

Step-by-step explanation:

Hypotenuse = 22

Since the two angles other than the 90° are both

45° , it means that the two legs of the right triangle are of equal length.

So, (x)²+ (x)² = 22²

2x² = 22²

x² = 484/2

x² = 242

x = √242

x = 15.55

x ≈ 15

What degree is required to factor a quadratic?

Ex: x^2+3x+6

Answers

The degree required to factor a quadratic equation is 2, i.e degree 2.

An equation is said to be quadratic if and only if its degree is not greater than 2, and not lesser than two. So that any equation with degree 2 is a quadratic equation.

A degree of an expression is the highest power of the variable in it. For example, 5x + 2 is to one degree, 3x^2 + 2x - 1 is to degree 2, 10x^4 + 3x^3 - x^2 + 4x - 6 is to degree 4 etc.

The methods required in solving a given quadratic equation are either by factorization, completing the square, graph, or by algebraic formula.

Therefore in the given question, the degree required is 2, i.e degree 2.

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question is attached thank you so much ​

question is attached thank you so much

Answers

Ratio remains same

\(\\ \sf\longmapsto \dfrac{18}{27}=\dfrac{x}{45}\)

\(\\ \sf\longmapsto 2/3=x/45\)

\(\\ \sf\longmapsto 3x=90\)

\(\\ \sf\longmapsto x=30\)

(Don’t send me a link pls just answer!) First 3 people to answer get lots of points pls do it by friday!

(Dont send me a link pls just answer!) First 3 people to answer get lots of points pls do it by friday!

Answers

Answer:

8835.73ft^3

Step-by-step explanation:

First:

Find area of the base circle.

Diameter is 15, so radius is 7.5

Area of the base circle is 56.25pi (use formula: A=pi(r)^2 ) (also ill convert pi into decimals only later)

next find the volume of the cylinder

height is 40 so volume = 56.25pi*40 = 2250pi

next find the volume of the dome at the top.

you know the radius is 7.5

Use volume of sphere formula below :

4 /3πr^3

=1767.15

alright now add the two bolded values

1767.15+2250pi

= 8835.73

hope this helps

The answer is 8835.73 ft

100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!

100 Points! Geometry question. Photo attached. Please show as much work as possible. Thank you!

Answers

Answer:

\(x^2+2y=1\)

Step-by-step explanation:

The equation of a parabola with a vertical axis of symmetry,

focus (h, k+p), and directrix x=h-p is given by:

\((x - h)^2 = 4p(y - k)\)

In this case, the focus is (0, 1) and the directrix is x =3.

Comparing this to the general equation,

we have

h = 0, k = 1, and x = h - p = 3.

From x = h - p, we can solve for p:

3 = 0 - p

p = -3

Substituting the values of h, k, and p into the equation, we get:

\((x - 0)^2 = 4(-3)(y - 1)\)

Simplifying further:

\(x^2 = -12(y - 1)\)

\(x^2=-12y+1\)

\(x^2+12y=1\)

Therefore, the parabola equation is \(x^2+2y=1\)

Please help. What is the solution to this system of equations using the linear combination method? {5x+y=24x+y=5 (0, 2) begin ordered pair 0 comma 2 end ordered pair. (−3, 17) begin ordered pair negative 3 comma 17 end ordered pair. (1, −8) begin ordered pair 1 comma negative 8 end ordered pair. (−2, 12)

Answers

8+8=24 that's the answer ndndmdmdmdmsm 123456$890

How many solutions does the following equation have?
-5(z+1)=-2z+10
Choose 1 answer:
A: No solutions
B: Exactly one solution
C: Infinitely many solutions

Answers

Answer:

B

Step-by-step explanation:

-5z +1 = -2z +10

-3z = 9

z=9/-3

Z= -3

Answer:

the answer is exactly one solution

Step-by-step explanation:

this is the answer because i just took this question on khan academy and the one solution is z = -5 for the equation

PLEASE HELP I WILL MAKE YOU BRAINLIEST!!!!! A rectangular prism has a volume of 198 cm³. A rectangular pyramid has the same height as the rectangular prism and a base that is congruent to the base of the rectangular prism.

What is the relationship between the volume of the rectangular prism and the rectangular pyramid?


(A) The volume of a rectangular pyramid is 2 times the volume of a rectangular prism. The volume of the rectangular pyramid is 396 cm3.

(B) The volume of a rectangular pyramid is 13 the volume of a rectangular prism. The volume of the rectangular pyramid is 66 cm3.

(C) The volume of a rectangular pyramid is 3 times the volume of a rectangular prism. The volume of the rectangular pyramid is 594 cm3.

(D) The volume of a rectangular pyramid is 12 the volume of a rectangular prism. The volume of the rectangular pyramid is 99 cm3.

Answers

Answer:

(B) The volume of a rectangular pyramid is 1/3 the volume of a rectangular prism. The volume of the rectangular pyramid is 66 cm3.

Step-by-step explanation:

Volume of a rectangular prism:

The volume of a rectangular prism is given by:

\(V_R = A_{b}*h\)

In which \(A_b\) is the base area and h is the height.

Volume of a pyramid:

\(V_P = \frac{A_{b}*h}{3}\)

Relation:

From this, given the same base and the same height, the volume of the pyramid will be a third of the rectangular prism.

A rectangular prism has a volume of 198 cm³

So the volume of the pyramid is 1/3 of this, that is, 198/3 = 66 cubic centimers.

The correct answer is given by option B.

i need help with this question please

i need help with this question please

Answers

Answer:

x axis - (18,0)

y axis - (0,12)

quadrant I - (4.5, 10.6)

quadrant II -(-15,21)

quadrant III - (-3/4, -4 1/9)

quadrant IV - (0,-7)

Step-by-step explanation:

Find a and b using the factor theorem.
\(f(x)=x^3+ax^2+bx-12\) has factor \((x-1), (x+1)\)

Answers

The values of a and b using the factor theorem for the polynomial f(x), we set f(1) and f(-1) equal to zero. Solving the resulting system of equations, we find that a = 12 and b = -1.

To find the values of a and b using the factor theorem, we need to use the given factors (x - 1) and (x + 1) and the fact that they are roots of the polynomial f(x).
The factor theorem states that if (x - c) is a factor of a polynomial, then f(c) = 0. Therefore, we can set x = 1 and x = -1 in the polynomial f(x) to get two equations.
First, let's substitute x = 1 into f(x):
f(1) = (1)^3 + a(1)^2 + b(1) - 12
f(1) = 1 + a + b - 12
Next, let's substitute x = -1 into f(x):
f(-1) = (-1)^3 + a(-1)^2 + b(-1) - 12
f(-1) = -1 + a - b - 12
Since (x - 1) and (x + 1) are factors, f(1) and f(-1) must equal zero. Therefore, we can set the two equations equal to zero and solve for a and b:
1 + a + b - 12 = 0
-1 + a - b - 12 = 0
Rearraning the equations, we have:
a + b = 11
a - b = 13
Now, we can solve this system of equations. Adding the two equations, we get:
2a = 24
a = 12
Substituting the value of a into one of the equations, we find:
12 - b = 13
b = -1
Therefore, the values of a and b are 12 and -1 respectively.

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Can you pls help me with this question thank you

Can you pls help me with this question thank you

Answers

The area of the composite figure is equal to the area of a triangle plus the area of a rectangle

so

step 1

Find out the area of the rectangle

A=(20)*(12)

A=240 in2

step 2

Find out the area of the triangle

A=(1/2)(20)*(10)

A=100 in2

therefore

the area of the figure is

A=240+100

A=340 in2option C

Synthetic division Help

Synthetic division Help

Answers

Answer:

i really don't know because i'm only in 7th grade but if this helps then yea

Step-by-step explanation:

Step 1: Set up the synthetic division. ...

Step 2: Bring down the leading coefficient to the bottom row.

Step 3: Multiply c by the value just written on the bottom row. ...

Step 4: Add the column created in step 3.

Answer:

Step-by-step explanation:

Synthetic division Help

What ratio is equivalent to 8/6

What ratio is equivalent to 8/6

Answers

Answer:

3rd option: 32/24

Step-by-step explanation:

8/6 = 4/3

1st option: Now let's change the denominator to 24:

4/3 ==> ?/24

4/3 =

4*8 / 3*8 = 32/24, not 3/24.

2nd option: Now let's change the numerator to 24:

4/3 ==> 24/?

4/3 =

4*6 / 3*6 = 24/18, not 24/32

24/32 = 3/4, not 4/3 ==> don't get confused by this

3rd option: 32/24 is correct [Look at the explanation for 1st option]

4/3 ==> ?/24

4/3 =

4*8 / 3*8 = 32/24, not 3/24.

Hence, the 3rd option is correct.

Can someone explain algebra with a paragraph or sum cuz ion understand

Can someone explain algebra with a paragraph or sum cuz ion understand

Answers

Algebra is one of the broad parts of mathematics, together with number theory, geometry and analysis. It is the study of mathematical symbols and the rules for manipulating these symbols

Hope this helps.
:)

PLS HELP ASAP !!!!!!!!!!!!

PLS HELP ASAP !!!!!!!!!!!!

Answers

Answer:

D-780 squared inches

Step-by-step explanation:

you multiply 2(l)(w)+2(l)(h)+2(w)(h)

Answer:

Last option 780.

Step-by-step explanation:

To get the surface area for this you will need to get the area of each square that you see is in the net version. Once you do that you add them all together. Here is the math. . .

(4*25)+(4*10)+(4*25)+(10*25)+(10*25)+(4*10) = 780 total surface area.

If this looks confusing just look at the net version of the rectangular prism and you can see there is a duplicate of the different dimension triangles. These areas would be (4*25), (4*10), (10*25). There are a total of 3 different size triangles and all of them have duplicates. So we just multiply everything by 2

(4*25)+ (4*10)+(10*25) = 390 now multiply that by 2 and you get 780 again.

Hope the explanation helps :)

⚠️⚠️⚠️⚠️NEED HELP MARKING PEOPLE AS BRAINLIST!

NEED HELP MARKING PEOPLE AS BRAINLIST!

Answers

Answer:

I think its C

Step-by-step explanation:

Thats my guesa

Find the zeros of the function.
y = (x + 1)(x-2)(x - 5)
The zero(s) of the function are
(Use a comma to separate answers as needed.)

Answers

-1,2,5
Switch the signs to get the zeros in a problem.

10. Prime numbers from 1 to 100 are running a restaurant - PRIME SPOT, near a tourist point. On a winter holiday, 1 and the composite numbers up to 100 enter the restaurant for dinner after their picnic at the same point. The dining hall has tables with seating capacity 15 for each. If they occupy tables without leaving any chair free, how many tables are required? If each prime number attender has to serve equal number of customers, how many customers should each one get to serve? ​

Answers

6 tables are required. Each prime number attender should serve 3 customers each.

The prime numbers between 1 and 100 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

All the numbers other than prime numbers are composite numbers.

The composite numbers from 1 to 100 are: 1, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 88, 90, 91, 92, 93, 94, 95, 96, 98, 99, 100.

Now, as there are 25 primes and 75 composites in the group that visited the restaurant, we can calculate the number of tables required by dividing the number of people by the seating capacity of each table.

Each table has a seating capacity of 15, so the number of tables required will be: Number of tables = (Number of customers)/(Seating capacity of each table)Number of customers = 25 (the number of primes) + 75 (the number of composites) = 100Number of tables = 100/15 = 6 tables

Therefore, 6 tables are required.

Now, as each prime number attender has to serve an equal number of customers, we need to calculate how many customers each one should serve.

Each prime attender has to serve 75/25 = 3 customers each, as there are 75 composites and 25 primes.

Thus, each prime number attender should serve 3 customers each.

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4
DIRECTION: Let us determine how much you already know about the
remainder theorem and factor theorem. Read and understand each
item, then choose the letter of your answer and write it on the space
provided.​

Answers

Answer:

ahor

Step-by-step explanation:

uyou 1- = 90 sio then  

ok!1 so then eat balls. 40㏑≡

whatcis 626362737287387287373 times 77474747743874837847348734463763786837

Answers

The result of 626362737287387287373 times 77474747743874837847348734463763786837 represented in scientific notation is 4.80498727057566113882339366151788673587 × 10⁹⁵.

The number you provided in your question can be represented in scientific notation. Scientific notation is a way of expressing numbers in a compact form that is especially useful for very large or very small numbers. The number you provided in your question can be represented in scientific notation as:

7.7474747743874837847348734463763786837 × 10⁷⁷

And 626362737287387287373 can be represented as:

6.26362737287387287373 × 10¹⁸

The product of these two numbers can be calculated as follows:

(7.7474747743874837847348734463763786837 × 10⁷⁷) × (6.26362737287387287373 × 10¹⁸) =

= (7.7474747743874837847348734463763786837 × 6.26362737287387287373) × (10⁷⁷ × 10¹⁸) =

= 48.0498727057566113882339366151788673587 x 10⁹⁵

So, the result of 626362737287387287373 times 77474747743874837847348734463763786837 in scientific notation is:

4.80498727057566113882339366151788673587 × 10⁹⁵

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please help me get this answer

please help me get this answer

Answers

Answer:

Step-by-step explanation:

Due to similarity in Tri ABC and ADE so,

\(\frac{AD}{AB} =\frac{DE}{BC} =\frac{AE}{AC}\)

\(AE=28.2*\frac{20}{24} =23.5cm\)

\(EC=AC-AE =28.2-23.5=4.7cm\)

If 400 x 300 = 120,000
And 40 x 30 is 1,200


Fill in the blanks and show your work
*_____ x ______ = 12,000?

Answers

Answer:

this list

Step-by-step explanation:

1×12000=12000

2×6000=12000

3×4000=12000

4×3000=12000

5×2400=12000

6×2000=12000

8×1500=12000

10 ×1200=12000

12 ×1000=12000

PLEASE HELP FAST!! IT IS URGENT!! Some stores print multiple coupons and advertisements on their receipts, making the receipts unusually long. A curious shopper makes the same purchase at a random sample of 10 stores and measures the length of each receipt (n inches). Here are the results: 8.25, 7.5, 5, 9.5, 12, 5.5, 9, 14, 11.5, 18 Are the conditions for cons tructing at confidence interval met?
O No, the random condition is not met.
O No, the 10% condition is not net.
O No, the Normal/large sanple condition is not met.
O Yes, the conditions for inference are met.​

Answers

Answer:

No, the Normal/large sample condition is not met. A confidence interval assumes that the underlying population follows a normal distribution and that the sample size should be at least 30. Since the sample size in this case is only 10, the Normal/Large Sample condition is not met and the conditions for constructing a confidence interval are not met.

The shorter leg of a right triangle is 7 ft shorter than the longer leg. The hypotenuse is 7 ft longer than the longer leg. Find the side lengths of the triangle.​

Answers

Answer:

shorter leg = 21 ft

longer leg = 28 ft

hypotenuse = 35 ft

Step-by-step explanation:

Let's call the longer leg of the triangle "b", the shorter leg "a", and the hypotenuse "h"

Then we have the following two equations:

a = b - 7

h = b + 7

And we can use the Pythagorean theorem to relate all three sides of the triangle:

\(h^2=a^2+b^2\\(b+7)^2=(b-7)^2+b^2\\b^2+14b +49=b^2-14b+49+b^2\\0=b^2-28b\\0=b*(b-28)\)

Therefore there are two possible solutions to this equation: b = 0 or b = 28 ft.

So we take the one that is different from zero (since we are looking for the side of a triangle) That is: b = 28 ft

Then hypotenuse = 28 + 7 = 35 ft

and the shorter leg = 28 - 7 = 21 ft

When does a negative exponent not move the base to the denominator

Answers

Answer:

If the base and the negative exponent is in the denominator already

Step-by-step explanation:

Normally, a base with a negative exponent moves to the denominator.

Example: (2^-3 = 1 / (2)^3 = 1/8)

However, if the base and the negative exponent is already in the denominator, the base would move to the numerator and the exponent would become positive.

Example:  2 / (3)^-3 = 2 * 3^3 = 2 * 27 = 54

Two fire-lookout stations are 13 miles apart, with station B directly east of station A.
Both stations spot a fire. The bearing of the fire from station A is N35°E and the
bearing of the fire from station B is N49°W. How far is the fire from station B?
Choose the correct formula given below.

Two fire-lookout stations are 13 miles apart, with station B directly east of station A.Both stations

Answers

The distance between the fire and station B is 10.7miles

What is sine rule?

The sine rule states that if a, b and c are the lengths of the sides of a triangle, and A, B and C are the angles in the triangle; with A opposite a, etc., then a/sinA=b/sinB=c/sinC.

The angle at A = 90- 35

= 55°

The angle at B = 90-49

= 41°

Angle at the fire = 180-(41+55)

= 180-96 = 84°

Using sine rule

sin84/13 = sin55/x

xsin84 = 13sin55

0.995x = 10.65

x = 10.65/0.995

x = 10.7 miles

Therefore the distance between the fire and station B is 10.7 miles.

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Plzzzz someone Help fasttt how would your answers to items (b) through (d) change if the legal entity is a ""voting interest entity?"" Which sentence below punctuates titles correctly?A.Five years after landing on Mars, the Curiosity rover still roams the planet, looking for life and occasionally singing"Happy Birthday" to itself.B. Five years after landing on Mars, the Curiosity rover still roams the planet, looking for life and occasionally singing"Happy Birthday" to itself.C. Five years after landing on Mars, the "Curiosity" rover still roams the planet, looking for life and occasionally singingHappy Birthday to itself.D. Five years after landing on Mars, the Curiosity rover still roams the planet, looking for life and occasionally singing HaBirthday to itself. Y i directly proportional to the cube of x. If y = 20 when x i 3 find y when x i 5 1/8 + 9/40 as a fraction in simplest form how to tell whether a molecule is polar or nonpolar which could be a conditional relative frequency table find the value of x that make it true firms that compete within the same strategic group generally experience the same competitive rivalry than firms outside their strategic group. more competitive rivalry than firms outside their strategic group. no competitive rivalry because they are substitutes. less competitive rivalry than firms outside their strategic group. 5 1/3 + (-4 1/6)+ (-2 1/2) 1 2 3 4 6 5 7 Image courtesy of NASA Which of the following bodies of water are identified correctly on the map above?U GET Brainest answers ASAP a) NH4CONH22NH3(g) + CO2(g) (1) 15 g of NH4CONH2 (Ammonium carbamate) decomposed and produces ammonia gas in reaction (1), which is then reacted with 20g of oxygen to produce nitric oxide according to reaction (2). Balance the reaction (2) NH3(g) + O2 NO(g) + 6 HO (g) (2) (Show your calculation in a clear step by step method) [2 marks] b) Find the limiting reactant for the reaction (2). What is the weight of NO (in g) that may be produced from this reaction? [7 marks] b) Which one of the following salts will give an acidic solution when dissolved in water? Circle your choice. Ca3(PO4)2, NaBr, FeCl3, NaF, KNO2 Write an equation for the reaction that occurs when the salt dissolves in water and makes the solution acidic, or state why (or if) none of them does. [3 marks] d) How does a buffer work? Show the action (or the process/mechanism) of a buffer solution through an appropriate chemical equation. [3 marks] e) NaClO3 decomposes 2NaClO3(s) to produce O2 gas as shown in the equation below. 2NaCl (s) + 302 (g) In an emergency situation O2 is produced in an aircraft by this process. An adult requires about 1.6L min- of O2 gas. Given the molar mass of NaClO3 is 106.5 g/mole. And Molar mass of gas is 24.5 L/mole at RTP How much of NaCIO3 is required to produce the required gas for an adult for 35mins? (Solve this problem using factor level calculation method by showing all the units involved and show how you cancel them to get the right unit and answer.) using the cost data of $12.21m total fixed costs for a fleet size of 21,666 cars and a variable cost of $15, what is the minimum price universal should charge to just cover all of its costs? enter the exact number to two decimal places What water is Mosa going to use to re-open Splashy Land? Nikola Tesla is running for mayor of Riverdale. He tells his audience: Under our current mayor, there have been 15,000 new cases of unemployment and 666 people dead due to Hiram Lodge. If he stays in office, who knows how many more people will lose their jobs and die? The number could go up even higher. When I was the CEO of Liberty High Anti-Bullying League, I helped to create over 1,000 new jobs. I can do the same thing for this city if you vote for me. Which form of persuasion is Nikola Tesla using here?A. EthosB. LogosC. PathosD. Ethos and Logos, onlyE. All of themF. Pathos and Ethos, onlyG. The answer is Nikola Tesla solve for t: 2-16t=6(-3t+2) I need help I will give you brainliest Jordan and Critina know you are familiar with the role of the 9-1-1 dipatcher. They have aked you to write a brief ummary. Thi ummary hould decribe the type of information you would gather a a 9-1-1 dipatcher on a call about the recent theft of all phyical evidence from the police tation. Write a brief ummary (100150 word) for Jordan and Critina, imagining you were a 9-1-1 dipatcher for thi call. What quetion would you ak about the tolen phyical evidence? taking responsibility for your health care includes all of the following except group of answer choices learning how to navigate the health care system. using over-the-counter medications to treat a sudden, serious illness. being knowledgeable about the benefits and limits of self-care. checking a health care providers education, training, and credentials. Please halp moi x3You are visiting family in Tennessee. One morning, the weather is warm and humid. Which type of air mass is most likely causing this weather?continental tropicalcontinental polarmaritime tropicalmaritime polar