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3 years ago

Reflect (3,9) across the y-axis.

Mathematics

2 answers:

Kobotan [32]3 years ago

8 0

Answer:

i think it would be (9,3) sorry if its wrong hope this helps

Step-by-step explanation:

Andru [333]3 years ago

5 0

Answer:

(-3,-9)

Step-by-step explanation:

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The quantity q varies inversely with the square of m and directly with the product of r and x. When q is 2.5, mis 4 and the

saveliy_v [14]

Answer:

The constant of proportionality is 5.

Step-by-step explanation:

If the quantity q varies inversely with the square of m and directly with the product of r and x, then the variation equation is

$q=k\frac{rx}{m^2}$

When q=2.5, m= 4 and the

product of rx = 8.

We plug in this values to get;

$2.5=k(\frac{8}{4^2})$

$2.5=k(\frac{8}{16})$

$2.5=\frac{1}{2}k$

Multiply both sides by 2

$k=2.5\times 2=5$

The constant of proportionality is 5.

7 0

3 years ago

Read 2 more answers

Hal says the volume of the sphere shown below 36 cm3. Find the correct volume, using 3.14 for pi. Round to the nearest hundredth

adelina 88 [10]

Answer:

Volume of sphere is $35.98cm^3$

Step-by-step explanation:

It is given that Hal says that volume of sphere is $36cm^3$

Volume of sphere is given by $V=\frac{4}{3}\pi r^3$

$\frac{4}{3}\pi r^3=36$

$\pi r^3=27$

$r^3=8.594$

$r=2.048cm$

Now using 3.14 in place of $\pi$

Now volume of sphere is

$V=\frac{4}{3}\times 3.14\times 2.048^3$

$V=35.98cm^3$

Therefore volume of sphere when we use 3.14 in place of $\pi$ is $35.98cm^3$

And the Hal likely error is he uses $\pi$ directly for calculation of volume.

7 0

3 years ago

Given f(x)= 7x-5. Find the value of f(8)

e-lub [12.9K]

Answer: 52

Explanation:

You need to replace the x-values with 8 to solve this. So, the equation would look like this. f(8)= 7 x 8 - 5

7 times 8 is 56. 56 minus four is 52 which is your answer.

If you needed to graph this then it would look like this... (8, 52)

The 8 is in the input because it is the x-value (we replace x with 8) and 52 is output/range/y-value because it is the answer.

8 0

3 years ago

Whats the scale factor brainist

OleMash [197]

Answer:

Step-by-step explanation:

there is no scale factor (nothing to use)

thanks for the points though

have a blessed day :^)

3 0

3 years ago

4. This box plot shows the number of marks earned by the boys in a class test. What was the lower quartile? 5.This box plot show

suter [353]

Answer:

4-lower- 18

5-upper-29

6- range-56

Step-by-step explanation:

If you look up a completed box plot you can tell where lower and upper quartiles are. Range is found by Max-Min

Hope I helped...!

4 0

3 years ago