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3 years ago

What is the distance on the number line from -10 to 7

Mathematics

2 answers:

riadik2000 [5.3K]3 years ago

8 0

Answer:

Step-by-step explanation:

Vikentia [17]3 years ago

5 0

Answer:

Step-by-step explanation:

-10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7

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Using 20 boxes of nails a carpenter was able to finish 40 bird houses. Write an

Dmitrij [34]

Answer : 2 boxes

Step-by-step explanation:

1/2 box = 1/4 house

So, 1 full box will be 2/4 or half of the house.

Therefore, 2 boxes of nails will be used for 4/4 or 1 birdhouse

i hope it helped.

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3 years ago

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Are these triangles similar?

Oduvanchick [21]

I’m not sure but i don’t think their similar at all. they do have one angle that is shared between both triangles but the lengths of their sides aren’t proportional

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3 years ago

A wooden board is 100 cm long is cut into two pieces. One piece is 16 cm longer than the other. What are the lengths of the othe

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3 years ago

WILL AWARD BRAINLIEST PLS HELP!!

swat32

Answer:

Step-by-step explanation:

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3 years ago

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The ratio of the circumference of two circles is 3:2.What is the ratio of their area

Nezavi [6.7K]

The ratio of their area is 9/4

<h2>Explanation:</h2>

We use ratios to compares values. In this exercise, we are comparing the circumference of two circles, which is:

$3:2$

and we want to know what is the ratio of their area. Recall that the circumference of a circle is given by:

$C=2\pi r \\ \\ \\ Where: \\ \\ C:Circumference \\ \\ r:Radius \ of \ the \ circle$

If we define:

$C_{1}: \ Circumference \ of \ circle \ 1 \\ \\ C_{2}: \ Circumference \ of \ circle \ 2 \\ \\ r_{1}: \ Radius \ of \ circle \ 1 \\ \\ r_{2}: \ Radius \ of \ circle \ 2$

Then, the ratio of the circumference of two circles is 3:2 is:

$\frac{C_{1}}{C_{2}}=\frac{2\pi r_{1}}{2\pi r_{2}}=\frac{3}{2} \\ \\ \therefore \frac{r_{1}}{r_{2}}=\frac{3}{2}$

The area of a circle is given by:

$A=\pi r^2 \\ \\ A:Area \\ \\ r:Radius$

So the ratio of their area can be found as:

$\frac{A_{1}}{A_{2}}=\frac{\pi r_{1}^2}{\pi r_{2}^2} \\ \\ \\ A_{1}:Area \ of \ circle \ 1 \\ \\ A_{2}:Area \ of \ circle \ 2$

So:

$\frac{A_{1}}{A_{2}}=\frac{r_{1}^2}{r_{2}^2}=\left( \frac{r_{1}}{r_{2}} \right)^2 \\ \\ \frac{A_{1}}{A_{2}}=\left(\frac{3}{2}\right)^2 \\ \\ \boxed{\frac{A_{1}}{A_{2}}=\frac{9}{4}}$

<h2>Learn more:</h2>

Unit rate: brainly.com/question/13771948#

#LearnWithBrainly

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3 years ago

What is the distance on the number line from -10 to 7​

What is the distance on the number line from -10 to 7