Can someone please help mee (20 points + brainliest!!!)

Answer:

5/8 is a reduction

Answer: 3.39

Step-by-step explanation: maybe

Answer:

50 per hour

Step-by-step explanation:

Answer:

7.74 cm2

Step-by-step explanation:

We need to find the area of both the square and the circle and then subtract the two.  Inscribed means draw within a figure so as to touch in as many places as possible.  So the circle is drawn inside the square.  The opposite is circumscribed, meaning drawn outside.

Asquare = s2 = 36 cm2 so the side is 6 cm

6 cm is also the diameter of the circle and thus the radius is 3 cm

A circle = πr2 = 3.14 * 32 = 28.28 cm2

The resulting difference is 7.74 cm2

Answer:

Hence, the correct option is (E) none of these as none of the given options match with the obtained answer.

Step-by-step explanation:

AI-generated answer

The formula for exponential growth is given as y = ab^x

Where y is the final amount, a is the initial amount, b is the growth factor and x is the time elapsed.

According to the question, the bug population starts at 10 and grows to 50 in one hour. Therefore,

50 = 10b^1

b = 5

So, the formula becomes: y = 10(5)^x

To find out how many bugs are there 3 hours after the start, we substitute x = 3 in the formula.

y = 10(5)^3 = 1250

Therefore, the number of bugs after 3 hours is 1250.

Hence, the correct option is (E) none of these as none of the given options match with the obtained answer.

Answer:

  4733

Step-by-step explanation:

Please refer to the attached diagram.

Point A can be assigned x-coordinate "p". Then its y-coordinate is 6p^2. The slope at that point is y'(p) = 12p.

Point B can be assigned x-coordinate "r". Then its y-coordinate is 6r^2. The slope at that point is y'(r) = 12r.

We want the slopes at those points to have a product of -1 (so the tangents are perpendicular). This means ...

  (12p)(12r) = -1

  r = -1/(144p)

The slope of line AB in the diagram is the ratio of the differences of y- and x-coordinates:

  slope AB = (ry -py)/(rx -px) = (6r^2 -6p^2)/(r -p) = 6(r+p) . . . . simplified

The slope of AB is also the tangent of the sum of these angles: the angle AC makes with the x-axis and angle CAB. The tangent of a sum of angles is given by ...

  tan(α+β) = (tan(α) +tan(β))/1 -tan(α)·tan(β))

__

Of course the slope of a line is equal to the tangent of the angle it makes with the x-axis. The tangent of angle CAB is 2 (because the aspect ratio of the rectangle is 2). This means we can write ...

  slope AB = ((slope AC) +2)/(1 -(slope AC)(2))

  \(6(p+r)=\dfrac{12p+2}{1-(12p)(2)}\\\\3(p+r)(1-24p)=6p+1\qquad\text{multiply by $1-24p$}\\\\3\left(p-\dfrac{1}{144p}\right)(1-24p)=6p+1\qquad\text{use the value for r}\\\\3(144p^2-1)(1-24p)=144p(6p+1)\qquad\text{multiply by 144p}\\\\ 3456 p^3+ 144 p^2+ 24 p+1 =0\qquad\text{put in standard form}\\\\144p^2(24p+1)+(24p+1)=0\qquad\text{factor by pairs}\\\\(144p^2+1)(24p+1)=0\qquad\text{finish factoring}\\\\p=-\dfrac{1}{24}\qquad\text{only real solution}\\\\r=\dfrac{-1}{144p}=\dfrac{1}{6}\)

So, now we can figure the coordinates of points A and B, and the distance between them. That distance is given by the Pythagorean theorem as ...

  d^2 = (6r^2 -6p^2)^2 +(r -p)^2

  d^2 = (6(1/6)^2 -6(-1/24)^2)^2 +(1/6 +1/24)^2 = 25/1024 +25/576 = 625/9216

Because of the aspect ratio of the rectangle, the area is 2/5 of this value, so we have ...

  Rectangle Area = (2/5)(625/9216) = 125/4608 = a/b

Then a+b = 125 +4608 = 4733.

_____

Comment on the solution

The point of intersection of the tangent lines is a fairly messy expression, and that propagates through any distance formulas used to find rectangle side lengths. This seemed much cleaner, though maybe not so obvious at first.

Answer:

Area = 10.85 square centimeters

Step-by-step explanation:

The formula for area of triangle is

A = 1/2bh, where

We see from the diagram that the base is 6.2 cm and the height is 3.5 cm.  Thus, we can plug these numbers in for b and h in the base formula to find the area, A:

A = 1/2(6.2)(3.5)

A = 1/2(21.70)

A = 10.85 square centimeters

Answer:

B =  80

C = 80

D = 100

E = 100

F = 80

H = 100

J = 66

K = 112

L = 112

M = 66

O = 112

P = 112

Q = 66

Answer:

I beleive  

Ordered pairs are in the form (x , y). So, my x-coordinate is 0 and my y-coordinate is 0. ... Since, -7 times 0 is equal to 0, I get 0 = 0. This is a true statement, and so (0, 0) is a solution to the equation If its incorrect I'm sorry

Step-by-step explanation:

In the given problem regarding electric charge, we conclude that options 1, 3, 4, and 6 are correct and true.

In the 1st statement,

it says both particles will be at rest when they reach A and C, which is true as they are addressed towards A and C under a uniform field and will be moving by the force of the electric field (F=QE) but we are applying for Work on it, so it ends at rest.

The 2nd statement is false as

the electric field is uniform and is not changing.

The 3rd statement is true because the forces are different as the Coulomb Force exerted on Particle two by the source of electrical is larger due to the difference in charges.

The 4th Statement is true due to the fact that both of the particles will move through, the same potential difference from start to finish.

The 5th Statement is false, coloumbic force will not increase and will remain constant.

The 6th Statement is true as Both the particles are positive, they are approaching the negative, so potential energy will be decreasing.

The 7th statement is false as the net work done on Particle two by the field and by us is zero but it is not zero.

The 8th statement is false, the electric potential energy of particles does not change from start to finish.

The 9th statement is also false, net work done is not zero due to the reason that electric force is conservative and here we are not coming back to the starting point.

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The values of a, b and c based on the information will be 2, 3, 4.

The square root of c which is 4 will be 2.

From the information, it was stated that the sum of the three consecutive integers, a, b and c, is 9.

This can be Illustrated as:

a + a + 1 + a + 2 = 9

3a + 3 = 9

3a = 9 - 3

a = 6 / 3

a = 2

b will be 2 + 1 = 3

c will be 2 + 2 = 4

The square root of c which is 4 will be:

= ✓4

= 2

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The sum of three consecutive integers, a, b and c, is 9.

(a) What is the greatest possible value of b?

(b) Find the square root of the largest possible value of c.

Answer:

about 2300

Step-by-step explanation:

Answer:

The width of the door is 36 inches

Step-by-step explanation:

The given parameters are;

The given area of the door = 3024 in.²

The length of the door = 48 + The width of the door

Let W represent the width of the door

Therefore, we have;

The length of the door = 48 + W

The area of the door = The length of the door × The width of the door

∴ By substitution, the area of the door = 3024 = W × (48 + W)

3024 = W × (48 + W) = 48·W + W²

48·W + W² = 3024

∴ 48·W + W² - 3024 = 0

Rearranging, we get;

W² + 48·W - 3024 = 0

By trial and error, we have;

(W + 84)×(W - 36) = 0

Therefore, given that the width of the door is a natural number, we have;

The width of the door, W = 36 inches

Simplifying

8d + -6d = 10

Combine like terms: 8d + -6d = 2d

2d = 10

Solving

2d = 10

Solving for variable 'd'.

Move all terms containing d to the left, all other terms to the right.

Divide each side by '2'.

d = 5

Simplifying

d = 5

Answer:

Step-by-step explanation:

You didnt attatch anything

The average rate of change of the population of the city are;

1) The population increases by 250 per year on average between 1930 and 1950

2) The average rate of change of the population is negative from 1970 to 1980

The average rate of change of a function, is the ratio of the difference between the values of the function at two specified input values, and the difference between the input values.

1) The values on the graph, (1930, 40), and (1950, 45), indicates, that the population of the city in 1930 is 40 thousand, and the population of the city in 1950 is 45 thousand, therefore, the average rate of change of the population between 1930 and 1950 is; (45 - 40)/(1950 - 1930) = 0.25

2) The data on the graph, indicates that we get; (1970, 35), and (1980, 30), therefore, the average rate of change from 1970 to 1980 is; (30 - 35)/(1980 - 1970) = -0.5.

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Answer:

first one

Step-by-step explanation:

The graph intersects x-axis at (4,0)  and (-3,0)

If function f has zeros at -3 and 4 then the first graph represents the function f.

When a function has zeros at -3 and 4, it means that the function's value is equal to zero at those x-values.

In other words, when x = -3 and x = 4, the function f(x) becomes 0.

To represent this on a graph, you should look for two points where the graph intersects the x-axis at -3 and 4.

When the graph crosses the x-axis at these points, it indicates that the function has zeros at those x-values.

When we observe the graphs, the first graph has zeros at -3 and 4.

Hence, the first graph could represent the function f with zeros at -3 and 4.

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Answer:

IQR = 4

Step-by-step explanation:

Q3 = 6

Q1= 2

6-2=4

The equation y = (0.9)t - 4 can be rewritten in the form y = a(1 - r)t, where a = -4 and r = 0.1. This represents exponential decay.

In the equation y = (0.9)t - 4, the term (0.9)t represents the exponential part, where the base is 0.9. By rewriting it in the form y = a(1 - r)t, we can identify the values of "a" and "r" that correspond to the given equation.

In this case, "a" is the initial value, which is -4. The negative value indicates a downward shift or decrease from the initial value. The term (1 - r) represents the remaining portion after each time interval. By comparing the given equation to the general form, we find that r = 0.1, which signifies a decay rate of 10%.

Overall, the equation y = (0.9)t - 4 represents exponential decay because the value of "r" is less than 1 (0.1) and "a" is negative (-4). This indicates a decreasing trend as time (t) increases.

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The line of symmetry for the graph with the equation y = 2cos(2x), 0 ≤ x ≤ 2 is the y-axis.

As angle x increases from π/2 to π, the value of sinx will decrease from 1 to 0.

To find the line of symmetry for the graph y = 2cos(2x), we need to identify a line that divides the graph into two symmetric halves.

In this case, since the function is even (symmetric about the y-axis) due to the cosine function, the line of symmetry is the y-axis.

As angle x increases from π/2 to π, we are moving from the first quadrant to the second quadrant on the unit circle.

In the first quadrant, the value of sinx is 1, while in the second quadrant, the value of sinx is 0.

Therefore, as angle x increases from π/2 to π, the value of sinx will decrease from 1 to 0.

The line of symmetry for the graph with the equation y = 2cos(2x), 0 ≤ x ≤ 2 is the y-axis.

As angle x increases from π/2 to π, the value of sinx will decrease from 1 to 0.

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Answer:

C 2:5

Step-by-step explanation:

Step-by-step explanation:

116/4+28-33

29+28-33

57-33

24

Given:

Two statements (a) and (b) are given.

Find:

we have to write the answers of both statments (a) and (b).

Explanation:

(a) A certain solution has a hydrogen ion concentration of 0.00000896 moles per liter

The scientific notation of 0.00000896 is

......................................................................................................................................

(b) A humpback whale can weigh up to 1.1 * 10^5 pounds

The standard form of the given number is given as below

Answer:

13 = 26/100= 13 X 100/26 = 50

Answer:   3.38

Step-by-step explanation:

Between clock skew and clock jitter, skew is preferred because it is more predictable and can sometimes increase max frequency. This makes it easier to manage in electronic systems and can provide benefits in certain scenarios.

Jitter is preferred because it is predictable. Clock jitter refers to the variability of the clock signal and can be predicted and compensated for. On the other hand, clock skew refers to the difference in arrival time of the clock signal at different points in the circuit and can sometimes increase maximum frequency. However, skew is preferred because it is more predictable and can be compensated for, while jitter is preferred because it is unpredictable and can't be compensated for. Therefore, in general, jitter is considered more preferable than skew.

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Answer:

infinity/undefined (both are acceptable)

Undefined is actually the best answer in college but your answer key might put it as infinity.

Step-by-step explanation:

Observe that the x coordinates of the two points are exactly the same at 12.

This reduces the possibility of the line being a horizontal or a vertical line.

Imagine, if x coordinates is always the same, it means that you are only varying y and that happens when you move up and down the graph.

Hence, the line is a straight vertical line. (Line equation: x = 12)

Gradient/Slope of a vertical line = infinity/undefined.

The slope of the given line is Undefined

The slope of the line when two points in the line is given is given by

m=(y₂-y₁)/(x₂-x₁)

The points are (12,0) and (12,9)

m=(9-0)/(12-12)

  = 9/0

  =Undefined

The slope of the line is Undefined

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Answer:

a) 2x + 1, 4x + 7

b) L = 19 cm, W = 7 cm, A = 133 cm^2

Step-by-step explanation:

8x^2 + 18x + 7

ax^2 + bx + c

ac = 8 * 7 = 56

56 = 4 * 14

8x^2 + 18x + 7 =

= 8x^2 + 14x + 4x + 7

= 2x(4x + 7) + 1(4x + 7)

= (2x + 1)(4x + 7)

a) 2x + 1, 4x + 7

b)

2(3) + 1 = 7

4(3) + 7 = 19

A = LW = 19(7) = 133

Answer:

(-1,-2) is correct.

Step-by-step explanation:

To find the solution of both linear graphs, you can do by finding the intercept of both graphs.

Both graphs intersect each others at x = -1 and y = -2.

Focus on x = -1 then look down and you will see that both graphs intersect at y = -2.

Thus:-

You're correct!

Answer:

Yes. (-1 , -2)

Step-by-step explanation:

The solution of system of equation is given by the point at which two lines intersect.