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BartSMP [9]
3 years ago
12

in an equation y varies directly as x varies. if y = 55 when x = 22, what is the value of x when y = 85?​

Mathematics
1 answer:
Luda [366]3 years ago
4 0

Answer:

x=34

Step-by-step explanation:

If you put Y and X <u>into a ratio</u> then it will be

5:2

because since their GCF is 11, then we will have to <u>divide</u> both of the numbers by <em>11</em>.

If y=85 then that means that it was<u> multiplied by 17</u>. If we want them to <u>stay within the same ratio</u>, then we will have to multiply X (2) by 17.

That will get you 34.

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Illusion [34]

Answer:

Base area = 25.2 in^2

Step-by-step explanation:

Base area = 63/2.5 = 25.2 in^2

8 0
3 years ago
What is the rate of change from x = n to x = 2n?​
puteri [66]

Answer:

\dfrac{-8}{\pi}

Step-by-step explanation:

The rate of change of the function f(x) from point x_1 to point x_2 can be calculated using formula

\dfrac{f(x_2)-f(x_1)}{x_2-x_1}

Given

x_1=\pi\\ \\x_2=2\pi

From the graph of the function

f(x_1)=f(\pi)=4\\ \\f(x_2)=f(2\pi)=-4

So, the rate of change is

\dfrac{f(x_2)-f(x_1)}{x_2-x_1}=\dfrac{-4-4}{2\pi -\pi}=\dfrac{-8}{\pi}

5 0
3 years ago
PLEASE HELP!!
baherus [9]

Answer:

How tall is he semicirlce?

Step-by-step explanation:

Then I can solve

4 0
2 years ago
In the figure, angle ZYX is measured in degrees. The area of the shaded sector can be determined using the formula StartFraction
tensa zangetsu [6.8K]

<u>The given options are:</u>

(A)the central angle measure of the sector divided by the total angle measure of a circle multiplied by the area of the circle will yield the area of the sector.

(B)the central angle measure of the sector divided by the total angle measure of a circle multiplied by the circumference of the circle will yield the area of the sector.

(C)the central angle measure of the sector multiplied by the area of the circle will yield the area of the sector.

(D)the central angle measure of the sector multiplied by the circumference of the circle will yield the area of the sector.

Answer:

(A)the central angle measure of the sector divided by the total angle measure of a circle multiplied by the area of the circle will yield the area of the sector.

Step-by-step explanation:

The area of the shaded sector can be determined using the formula:

\frac{m\angle ZYX}{360^\circ} \cdot \pi r^2

m\angle XYZ=$Central angle of XYZ\\\pi r^2$=Area of a Circle

360^\circ =$Total Angle

Therefore, the formula is:

\dfrac{m\angle ZYX}{360^\circ} \cdot \pi r^2\\\text{Area of XYZ}=\dfrac{\text{Cental Angle of XYZ}}{\text{Total Angle}} X \text{Area of the Circle}

Therefore, the formula is best explained by Option A.

7 0
3 years ago
Help with this question?? :c
mojhsa [17]
The answer is 1.52 to your question.
5 0
3 years ago
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