2 years ago

Please help!!!! (15 points)!!!

Mathematics

1 answer:

notka56 [123]2 years ago

3 0

I would say the answer d

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Priya drew a circle whose area is 25 cm. Dan drew a circle whose diameter is 4 times the radius of Priya's circle. How many time

Vitek1552 [10]

Answer:

400

Step-by-step explanation:

first work out the radius of priya's circle with the equation a = $\pi r^{2}$

$25 = \pi r^{2}$

$\frac{25}{\pi } = r^{2}$

$r = \sqrt{\frac{25}{\pi } }$

we know the diameter of a circle is 2 times the radius so the diameter of priya's circle is 2x $\sqrt{\frac{25}{\pi } }$

this means that if the diameter of dan's circle is 4 times bigger it must be

8x $\sqrt{\frac{25}{\pi } }$

to find the radius of dan's circle we divide the diameter by to 2 to give

4x $\sqrt{\frac{25}{\pi } }$

then use the a= $\pi r^{2}$ equation again

$a= (4 \sqrt{\frac{25}{\pi } })^{2} \pi$

which equals 400

hope that helped

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3 years ago

A stereo that cost $500 and sold for $750 in profit percentage

Mashutka [201]

Answer:

50% profit

Step-by-step explanation:

750-500 is 250 so that is a 50% profit/markup

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3 years ago

What are the coordinates of the midpoint of the segment whose endpoints are A(-3,-5) and B(2,7) ?

WARRIOR [948]

It’s A I had this question before

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1 year ago

Which equation is not true 12/10=6/5 3/1=30/10 6/2=2/3 8/6=16/12

blsea [12.9K]

Answer:

third one is not true means wrong

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2 years ago

Which statement correctly describes the end behavior of y = 3x8 + 5x2 +2x - 1

zmey [24]

Answer:

C) The graph rises to the left and rises to the right.

Step-by-step explanation:

The highest expone tis even and it's coefficient is positive

therefor

The graph rises to the left and rises to the right.

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