3 years ago

Help pls.!! 247 heart beats in 6 1/2 minutes

Mathematics

1 answer:

Likurg_2 [28]3 years ago

6 0

Answer: 60

Step-by-step explanation:

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A circular disc has an area that measures between 1,650 and 1,700 square inches. What could be the length of its radius? Use 3.1

xxTIMURxx [149]

we know that

the area of a circle is equal to

$A=\pi r^{2}$

where

r is the radius of the circle

Step 1

Find the radius for $A=1,650\ in^{2}$

$A=\pi r^{2}$

Solve for r

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

substitute the value of area

$r=\sqrt{\frac{1,650}{3.14}}=22.92\ in$

Step 2

Find the radius for $A=1,700\ in^{2}$

$A=\pi r^{2}$

Solve for r

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

substitute the value of area

$r=\sqrt{\frac{1,700}{3.14}}=23.27\ in$

therefore

the radius r

$22.92\ in \leq r \leq 23.27\ in$

<u>the answer is the option A</u>

$23\ in$

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3 years ago

Read 2 more answers

Please help? I have placed the screenshot below.

Elenna [48]

It is c. 216 in³
to answer the problem, u must know the formula V=LxWxH (volume= length x width x height)
L=12
W=6
H=3
so, 6x3x12= 216 in³

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What is the sum of 2+2??

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The sum of 2+2 is 4.

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Since 100% = $120,

105% = $126.

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