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2 years ago

In a circle, what does the ratio A/r^2 represent?

1 answer:

5 0

The ratio A/r² would represent $\pi$ which is the circumference of a circle divided by its diameter.

You can see this because the area of a circle is $\pi$ r² and if you divided that by the radius squared, you are given pi which is the circumference of a circle divided by its diameter.

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For his mobile phone service, John pays a monthly fee of $40 plus $15 for each 1 GB of data (rounded up) over his 8 GB of data t

kolbaska11 [484]

Answer:

John can use no more than 2 GB of additional data

Step-by-step explanation:

Monthly fee = $40

Additional fee = $15 for each 1 GB of data (rounded up) over his 8 GB.

Let x be the number of additional data in GB over his 8 GB of data that comes with his plan.

Total monthly charge is

$C(x)=40+15x$

It is given that monthly charge before taxes to be at most $70.

$C(x)\leq 70$

$40+15x\leq 70$

$15x\leq 70-40$

$15x\leq 30$

Divide both sides by 2.

$x\leq 2$

Therefore, John can use no more than 2 GB of additional data.

3 0

2 years ago

If a student is on the basketball team, then he has practice after school. If there is practice after school, then the student n

Makovka662 [10]

Answer:

B. Jamal needs to find a ride home other than the bus.

Step-by-step explanation:

This conclusion can be made from the prompt.

Hope this helps!

6 0

2 years ago

Plz help me am dam at math I will gave Brainliest

irakobra [83]

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$volume = 8 \times 7 \times \frac{1}{2} \\$

$volume = 8 \times \frac{1}{2} \times 7 \\$

$volume = \frac{8}{2} \times 7 \\$

$volume = 4 \times 7$

$volume = 28 \: \: \: {m}^{3}$

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7 0

2 years ago

Read 2 more answers

Ellie baked a round cookie cake for her sister's birthday. The radius of the cookie cake was 6 inches. If Ellie ate 1/4 of the c

beks73 [17]

Answer:

28.26

Step-by-step explanation:

If you find the area by using the eqaution A=pi*raduis*2 you can then divide it by 4

3 0

2 years ago

80000 times 60 plus 89

snow_lady [41]

Answer:

4,800,089

Step-by-step explanation:

You must multiply 80000 by 60 first, which an easy way to solve is multiply 8 by 6 and then add the amount of zeroes in both of those numbers so 48, and then 5 zeroes. So 4,800,000. Then you want to add 89.

3 0

2 years ago