Solve the triangle. Round to the nearest tenth.
Find c aswell
Answer:
Set your calculator to Degree mode.
a² = 17² + 20² - 2(20)(17)cos(89°)
a² = 677.13236
a = 26.0 in.
sin(89°)/26.02177 = (sin B)/17
sin B = 17sin(89°)/26.02177
B = 40.8°
C = 50.2°
Pls help with my question
The new demand function given that D = 17,000 when x is $3 per unit is: D(x) = 1400 (√25-x²) + 12,800
The Demand Function A demand function is defined as p=f(x), p = f (x), where p is the unit price and x is the number of units of the commodity in question, and is often described as a decreasing function of x; that is, p=f(x), p = f (x) drops as x grows.
Given that D'(x)=-1400x/(√25-x²)
Integrate both sides
D(x) = 1400 √(25-x²) + C
If D(4) = 17,000
17,000 = 1400 * 3 + C
C = 12,800
Hence
D(x) = 1400 (√25-x²) + 12,800
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Simplify: (-2x)⁴
Help Please!
Answer: 16x^4
Step-by-step explanation: Because -2 4 times is 16 and x is unknow.
The value of the expression \((-2x)^4\) is -16\(x^4\).
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
\((-2x)^4\)
This can be written as,
\((-2)^4\) x \((x)^4\)
16\(x^4\)
Thus,
The value is 16\(x^4\)
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If x = 2, solve for y. y = 6.3x y=[?]
Answer: y = 12.6
Step-by-step explanation:
Since x = 2 and y = 6.3 * x, y = 6.3 * 2.
6.3 * 2 is equal to 12.6, so y is 12.6.
Answer:
y = 12.6
Step-by-step explanation:
y = 6.3x x = 2
Solve for y.
y = 6.3(2)
y = 12.6
So, the answer is 12.6
Please help me please please help ASAP
Step-by-step explanation:
70 + 45 = 115
180 - 115 = 65
angle c = 65
use sohcahtoa
cos angle = adjacent
hypotenuse
cos 65 = 2.5
b
b cos 65 = 2.5
use the calc for further answers
hope that helped
(20x^3-7x^2+3x-7)/-13x^2-5
Answer:
x = ((30 sqrt(1462809) + 36253)^(2/3) - 131)/(60 (30 sqrt(1462809) + 36253)^(1/3)) + 7/60 or x = 7/60 - 1/60 ((-1)/(30 sqrt(1462809) + 36253))^(1/3) (131 (-1)^(1/3) + (30 sqrt(1462809) + 36253)^(2/3)) or x = 1/60 (131 (-1/(36253 + 30 sqrt(1462809)))^(1/3) + (-1)^(2/3) (36253 + 30 sqrt(1462809))^(1/3)) + 7/60
see atachement it's more legible.
Step-by-step explanation:
Solve for x:
(20 x^3 - 7 x^2 + 3 x - 7)/(-13 x^2 - 5) = 0
Hint: | Multiply both sides by a polynomial to clear fractions.
Multiply both sides by -13 x^2 - 5:
20 x^3 - 7 x^2 + 3 x - 7 = 0
Hint: | Look for a simple substitution that eliminates the quadratic term of 20 x^3 - 7 x^2 + 3 x - 7.
Eliminate the quadratic term by substituting y = x - 7/60:
-7 + 3 (y + 7/60) - 7 (y + 7/60)^2 + 20 (y + 7/60)^3 = 0
Hint: | Write the cubic polynomial on the left hand side in standard form.
Expand out terms of the left hand side:
20 y^3 + (131 y)/60 - 36253/5400 = 0
Hint: | Write the cubic equation in standard form.
Divide both sides by 20:
y^3 + (131 y)/1200 - 36253/108000 = 0
Hint: | Perform the substitution y = z + λ/z.
Change coordinates by substituting y = z + λ/z, where λ is a constant value that will be determined later:
-36253/108000 + (131 (z + λ/z))/1200 + (z + λ/z)^3 = 0
Hint: | Transform the rational equation into a polynomial equation.
Multiply both sides by z^3 and collect in terms of z:
z^6 + z^4 (3 λ + 131/1200) - (36253 z^3)/108000 + z^2 (3 λ^2 + (131 λ)/1200) + λ^3 = 0
Hint: | Find an appropriate value for λ in order to make the coefficients of z^2 and z^4 both zero.
Substitute λ = -131/3600 and then u = z^3, yielding a quadratic equation in the variable u:
u^2 - (36253 u)/108000 - 2248091/46656000000 = 0
Hint: | Solve for u.
Find the positive solution to the quadratic equation:
u = (36253 + 30 sqrt(1462809))/216000
Hint: | Perform back substitution on u = (36253 + 30 sqrt(1462809))/216000.
Substitute back for u = z^3:
z^3 = (36253 + 30 sqrt(1462809))/216000
Hint: | Take the cube root of both sides.
Taking cube roots gives 1/60 (36253 + 30 sqrt(1462809))^(1/3) times the third roots of unity:
z = 1/60 (36253 + 30 sqrt(1462809))^(1/3) or z = -1/60 (-36253 - 30 sqrt(1462809))^(1/3) or z = 1/60 (-1)^(2/3) (36253 + 30 sqrt(1462809))^(1/3)
Hint: | Perform back substitution with y = z - 131/(3600 z).
Substitute each value of z into y = z - 131/(3600 z):
y = 1/60 (30 sqrt(1462809) + 36253)^(1/3) - 131/(60 (30 sqrt(1462809) + 36253)^(1/3)) or y = -1/60 (-30 sqrt(1462809) - 36253)^(1/3) - (131 (-1)^(2/3))/(60 (30 sqrt(1462809) + 36253)^(1/3)) or y = 131/60 ((-1)/(30 sqrt(1462809) + 36253))^(1/3) + 1/60 (-1)^(2/3) (30 sqrt(1462809) + 36253)^(1/3)
Hint: | Simplify each solution.
Bring each solution to a common denominator and simplify:
y = ((30 sqrt(1462809) + 36253)^(2/3) - 131)/(60 (36253 + 30 sqrt(1462809))^(1/3)) or y = -1/60 (-1/(36253 + 30 sqrt(1462809)))^(1/3) ((30 sqrt(1462809) + 36253)^(2/3) + 131 (-1)^(1/3)) or y = 1/60 (131 ((-1)/(30 sqrt(1462809) + 36253))^(1/3) + (-1)^(2/3) (30 sqrt(1462809) + 36253)^(1/3))
Hint: | Perform back substitution on the three roots.
Substitute back for x = y + 7/60:
Answer: x = ((30 sqrt(1462809) + 36253)^(2/3) - 131)/(60 (30 sqrt(1462809) + 36253)^(1/3)) + 7/60 or x = 7/60 - 1/60 ((-1)/(30 sqrt(1462809) + 36253))^(1/3) (131 (-1)^(1/3) + (30 sqrt(1462809) + 36253)^(2/3)) or x = 1/60 (131 (-1/(36253 + 30 sqrt(1462809)))^(1/3) + (-1)^(2/3) (36253 + 30 sqrt(1462809))^(1/3)) + 7/60
An isosceles trapezoid with bottom base 26.5 decimeters, top base 8.5 decimeters, and height 9 decimeters. Find the area. a. 238.5 dm2 c. 157.5 dm2 b. 257.5 dm2 d. 315 dm2 Please select the best answer from the choices provided A B C
Answer:
the answers c 157.5
Step-by-step explanation:
on edg 2022
The area of given isosceles trapezoid is c. 157.5 decimeters².
What is an area of a trapezoid?The area of a trapezoid is = (1/2*sum of the two parallel sides *height). The area is the sum of the areas of all its faces.The areas of the base, top, and lateral surfaces i.e all sides of the object. It is measured using different area formulas and measured in square units and then adding all the areas. The surface area of a solid object is a measure of the total area that the surface of the object covers.⇒ (1/2*sum of the two parallel sides *height)
⇒ 1/2*(26.5+8.5)*9
⇒ 157.5 decimeters².
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Find F2 if FX equals X +1 squared
Answer:
9
Step-by-step explanation:
f(x) = (x+1) ^2
f(2) = (2+1)^2
f(2) = 3^2 = 9
Purchased goods on credit from Mimi and Ana, RM300 and RM400 respectively. Btw this is account subject and can I know what is the debit and credit for this questions.
PLEASE HELP THANK YOU HURRY FAST
1) Polynomial of 4 terms.
2) The rational roots of the function are,
x = - 2, 1
3) The zeroes of the function are,
x = - 2, - 3, 2
4) The zeroes of the function are,
x = 1, - 1, 2i, - 2i
5) The correct function which shows the cubic equation is, option 1.
We have to given that;
1) Function is,
⇒ 3x⁵ + 5x⁴ - 7x³ + 15
Clearly, There are 4 terms in function.
Hence, Polynomial of 4 terms.
2) Function is,
⇒ x⁴ + 5x³ + 7x² - 3x - 10 = 0
The correct rational roots are satisfy the function,
Hence, We get;
Plug x = 1,
⇒ x⁴ + 5x³ + 7x² - 3x - 10 = 0
⇒ 1⁴ + 5(1)³ + 7 (1)² - 3(1) - 10 = 0
⇒ 0 = 0
Plug x = - 2;
⇒ x⁴ + 5x³ + 7x² - 3x - 10 = 0
⇒ 2⁴ + 5(2)³ + 7 (2)² - 3(2) - 10 = 0
⇒ 0 = 0
Thus, The zeroes of the function are,
x = - 2, 1
3) Function is,
⇒ y = (x + 3) (x + 2) (x - 2)
Hence, The zeroes of the function are,
x = - 3
x = - 2
x = 2
4) Function is,
⇒ 3x² - 4 = - x⁴
⇒ x⁴ + 3x² - 4 = 0
⇒ x⁴ + 4x² - x² - 4 = 0
⇒ x² (x² + 4) - 1 (x² + 4) = 0
⇒ (x² - 1) (x² + 4) = 0
⇒ x² - 1 = 0
⇒ x² = 1
⇒ x = ±1
⇒ x² + 4 = 0
⇒ x² = - 4
⇒ x = ±2i
Hence, The zeroes of the function are,
x = 1, - 1, 2i, - 2i
5) By given graph the correct function which shows the cubic equation is, Option 1.
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3n-5=-8(6+5n) in distributive property
Answer:
n=-1
Step-by-step explanation:
3n-5=-8(6+5n)
3n-5=-48-40n
add 40n to both sides
43n-5=-48
n=-1
Step-by-step explanation:
Find the equation of the line through (3,-6) which is parallel to the line y=-9x+8
The equation y = -9x + 8 is already in slope-intercept form. So, the number multiplying x, i.e., -9 is the slope of this line.
Also, since we need to find the equation of a line that is parallel to that one, their slopes are the same (parallel lines have the same slope).
We need to use the following formula for the equation of a line passing through the point (a, b) with slope m:
y - b = m(x - a)
In this case, we have:
a = 3
b = -6
m = -9
Thus, the equation of the line is:
y - (-6) = -9(x - 3)
y + 6 = -9x + 27
y = -9x + 27 - 6
y = -9x +21
Therefore, the
If 400 x 300 = 120,000
And 40 x 30 is 1,200
Fill in the blanks and show your work
*_____ x ______ = 12,000?
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
f(x)=(4x+3)^2+2; translation 2 units down
Given data:
\(f(x)=(4x+3)^2+2\)For the translation 2 units down the function will become,
\(f(x)-2=((4x+3)^2+2)-2\)\(h(x)=f(x)-2=(4x+3)^2\)The function is ,
\(h(x)=(4x+3)^2\)1118 11 + 600-1110
\(12 \times (5 + 4)\)
Answer:
111811 + 600 - 1110
111871 - 1110
= 110761
12 × (5+4)
60+4
= 64
Which One Doesn't Belong:
A. 1 + 1/2
B. 6/4
C.3/4
D.30/20
Answer:
30/20
Step-by-step explanation:
If f(x) = 2x, then f '(x) =
- 2x
x
X-2
Answer:
Step-by-step explanation:
if f(x)=2x then f’(x)=dy/dx=2
Oddly that is not one of the choices shown, but the constant 2 is the derivative of 2x.
ive been waiting for half an hour pls help
Answer:
Area of the pentagon = 130.5 square inches
Step-by-step explanation:
The area of any regular figure is always defined as :
\(Area=\frac{perimeter\,\,*\,\,apothem}{2}\)
Therefore for this pentagon, we have that its perimeter is 8.7 inches times 5 (due to its 5 equal sides) = 43.5 inches
And then the Area would be:
43.5 inches * 6 inches / 2 = 130.5 square inches
The following data represent a sample of non-elementary mathematics teachers in Beren County, New Jersey. Identify the qualitative and quantitative variables, the categories associated with cach qualitative variable, and the measurement scales for all variables. Degree School Brookside E.S. Masters Program 3-Emotionally Distur. Masters Program 3-Emotionally Distur. Bachelors Program 3-Emotionally Distur. Bachelors Program 3-Emotionally Distur. Masters Program 5-Life Skills Masters Program 5-Life Skills Masters Bergen Academies-Hackensack Masters Bergen Academics-Hackensack Masters Bergen Academies-Hackensack Masters Years Salary Classes Experience Taught 8 $67.945 25 $82.910 25 $86,030 3 562,690 21 $82,620 11 $82,330 41 579,790 4 31 $82.626 5 10 $82.626 3 $98.291
Step 1: Identify the Qualitative Variables:
The qualitative variables in this data set are Degree, School, Program, and Classes.
Step 2: Identify the Categories Associated with Each Qualitative Variable:
Degree: Bachelors, Masters
School: Brookside E.S., Bergen Academies-Hackensack
Program: 3-Emotionally Distur., 5-Life Skills
Classes: Experience Taught
Step 3: Identify the Quantitative Variables:
The quantitative variables in this data set are Salary and Years.
Step 4: Identify the Measurement Scales for All Variables:
Salary and Years are measured on an interval scale, while Degree, School, Program, and Classes are measured on a nominal scale.
The question does not have any part related to Master's yearly salaries.
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Given that 8 tan = 3 cos
a) Show that the above equation can be rewritten in the form 3 sin2 + 8 sin − 3 = 0
b) Hence solve, for 0 ≤ ≤ 90, the equation 8 tan 2 = 3 cos 2, giving your answers to 2 decimal places.
The only solution for the equation 8 tan^2 θ = 3 cos^2 θ in the given Range is θ ≈ 19.47 degrees.
a) We are given the equation 8 tan θ = 3 cos θ.
Dividing both sides of the equation by cos θ, we have:
8 tan θ / cos θ = 3
Using the identity tan θ = sin θ / cos θ, we can substitute it into the equation:
8 (sin θ / cos θ) / cos θ = 3
Simplifying further, we get:
8 sin θ / cos^2 θ = 3
Now, multiplying both sides of the equation by cos^2 θ, we have:
8 sin θ = 3 cos^2 θ
Using the identity cos^2 θ = 1 - sin^2 θ, we can substitute it into the equation:
8 sin θ = 3(1 - sin^2 θ)
Expanding the equation, we get:
8 sin θ = 3 - 3 sin^2 θ
Rearranging the terms, we have:
3 sin^2 θ + 8 sin θ - 3 = 0
Therefore, we have successfully shown that the equation can be rewritten in the form 3 sin^2 θ + 8 sin θ - 3 = 0.
b) Now, let's solve the equation 3 sin^2 θ + 8 sin θ - 3 = 0.
To solve the quadratic equation, we can use factoring, quadratic formula, or other appropriate methods.
In this case, the equation factors as:
(3 sin θ - 1)(sin θ + 3) = 0
Setting each factor equal to zero, we have two equations:
3 sin θ - 1 = 0 or sin θ + 3 = 0
For the first equation, solving for sin θ, we get:
3 sin θ = 1
sin θ = 1/3
Taking the inverse sine (sin^-1) of both sides, we find:
θ = sin^-1(1/3) ≈ 19.47 degrees (to 2 decimal places)
For the second equation, solving for sin θ, we have:
sin θ = -3
Since the range of sine is between -1 and 1, there are no solutions for this equation in the given range (0 ≤ θ ≤ 90 degrees).
Therefore, the only solution for the equation 8 tan^2 θ = 3 cos^2 θ in the given range is θ ≈ 19.47 degrees.
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Denise deposited $9,000 in a savings account earning 14% interest, compounded annually.To the nearest cent, how much will she have in 3 years?
Answer:
Given that,
Denise deposited $9,000 in a savings account earning 14% interest, compounded annually.
To find the amount after compounded annually after 3 years.
we get that,
P=$9000
r=14%
n=3
we know the formula forAmount with Compound interest rate r% and after n years as,
\(A=P(1+\frac{r}{100})^n\)Substituting the values we get,
\(A=9000(1+\frac{14}{100})^n\)\(A=9000(1.14)^3\)\(A=9000(1.481544)\)\(A=13,333.896\)\(A=13,333.90\)Answer is: Required amount is $13,333.90
Hey guys please help me with my quiz its about finding the values of letters in angles!!
The value of x is given as follows:
x = 24.
The measure of angle DFE is given as follows:
<DFE = 62º.
How to obtain the measures?To obtain the measures, we consider that the sum of the measures of the internal angles of a triangle is of 180º.
The internal angle measures for this problem are given as follows:
180 - (5x - 14) -> each angle is supplementary with it's external.44º.3x - 10.Hence the value of x is obtained as follows:
180 - 5x + 14 + 44 + 3x - 10 = 180
228 - 2x = 180
2x = 48
x = 24.
The measure of angle DFE is obtained as follows:
<DFE = 3(24) - 10
<DFE = 72 - 10
<DFE = 62º.
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Lynn has an annual income of $17,500. She has $5,500 withheld asdeductions. What is the amount of each paycheck if she gets paidbiweekly?a. $673.08b. $884.62c. $461.54d. $500
From the $17,500 she has $5,500 are withheld therefore, she keeps a total of $12,000 per year, then she gets $12,000/12=$1000 each month. If she gets paid biweekly she receives $1,000/2=$500.
Answer: Option d.
I WILL GIVE BRAINLEST FAST PLEASE ANSWER THE QUESTION IN THE IMAGE
Answer:
Cannot be determined
Step-by-step explanation:
We only know one angle and we could only compare one set of sides.
We do not have enough information to determine if the triangles are similar
What three consecutive integers have a sum of 12?; What is the sum of 3 consecutive integers?; What is the formula for 3 consecutive integers?; What are the consecutive numbers of 12?
The three consecutive numbers that have a sum of 12 is 3, 4 and 5. The formula for calculation is x + x + 1 + x + 2 = 12.
Let the first number in three consecutive numbers be x. So, the next two numbers will be (x+1) and (x+2). Now, their sum wil be represented as mathematical equation -
x + x + 1 + x + 2 = 12
Performing addition on Left Hand Side of the equation
3x + 3 = 12
Rewriting the equation
3x = 12 - 3
Performing subtraction on Right Hand Side of the equation
3x = 9
x = 9/3
Performing division on Right Hand Side of the equation
x = 3
So, next number = x+1
Second number = 3+1
Second number = 4
Third number = x+2
Third number = 3+2
Third number = 5
Hence, the three consecutive numbers are 3, 4 and 5.
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Which is the correct graph of y=2/x^2-4 ?
PLEASE HELP ME THANKS!
Answer:
i think it is B. x^ab, but i could be wrong
Step-by-step explanation:
pemdas so take
x^(a+b)
x^(ab)
x^ab
probably wrong
Which equation choice could represent the graph show below?
Answer:
A
Step-by-step explanation:
Hopefully this helps
What is the volume of a right circular cylinder with a radius of 6 m and a height of 9 m?
o 54 m²
o 108 m²
o 324 m²
○ 486 m²
option C) The volume of the right cylinder is 1017.88 m² = 324π m²
What is Cylinder ?One of the most fundamental curvilinear geometric shapes, a cylinder has traditionally been a three-dimensional solid. It is regarded as a prism with a circle as its base in basic geometry. In several contemporary fields of geometry and topology, a cylinder can alternatively be characterized as an infinitely curved surface.
The properties of cylinder are :
It features two flat circular faces, two curved edges, and one curved surface.The two circular flat bases are parallel to one another.There isn't a vertex on it.The radius of a circular base and the height of a cylinder determine its size.The radius of the cylinder = 6 m
Height = 9 m
The volume of the right cylinder is π(radius)²height
= π * 6² * 9 = 1017.88 m² = 324π m²
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Solve the quadratic equation by factoring 9x^2 -16 = 0
Answer: x= - 4/3 and x = 4/3
Step-by-step explanation:
(3x-4) times (3x+4) = 0