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3 years ago

Help, please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Crazy boy [7]3 years ago

3 0

It’s the number 3 hope this helps

MAXImum [283]3 years ago

3 0

Answer:

Step-by-step explanation:

When finding the constant of proportionality, divide the +/- from "y", divided by the +/- from x.

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If the circumference of a circle is changed from 9 cm to 3 cm, how will the diameter change?

klemol [59]

<u>Answer:</u>

If the circumference of a circle is changed from 9 cm to 3 cm, then the diameter decreases by a factor of 3.

<u>Solution:</u>

Given, the circumference of a circle is changed from 9 cm to 3 cm,

We have to find how will the diameter change from the given equations?

We know that, diameter = 2 $\times$ radius and circumference = 2π $\times$ radius.

$\text { Now, circumference }=\pi \times(2 \times \text { radius }) \rightarrow \text { circumference }=\pi \times \text { diameter }$

$\text { At initial stage } \rightarrow \text { circumference }=9 \rightarrow \pi \times \text { diameter }=9 \rightarrow \text { diameter }=\frac{9}{\pi}$

$\text { Now, after change } \rightarrow \text { circumference }=3 \rightarrow \pi \times \text { diameter }=3 \rightarrow \text { diameter }=\frac{3}{\pi}$

$\text { Now, for finding change in factor }=\frac{\text { new diameter }}{\text { old diameter }}=\frac{\frac{3}{\pi}}{\frac{9}{\pi}}=\frac{3}{9}=\frac{1}{3}$

Hence, the diameter decreases by a factor of 3.

7 0

3 years ago

Read 2 more answers

Hey lovelies, could I get some help here? tysm <333 xx

Mazyrski [523]

Answer:

x = -14

Step-by-step explanation:

y = 3x

x = 2y +70

(replace)

x = 2(3x) + 70

(simplify)

x = 6x + 70

-5x = 70

x = -14

5 0

3 years ago

Write as a percent 49/50

monitta

Answer:

49/50 equals out to 98%

Step-by-step explanation:

6 0

4 years ago

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297,060 ÷ 0.0004839 =

Tpy6a [65]

Answer:

614

Step-by-step explanation:

I estimated the answer, if it doesn't require estimation, the answer without estimation is 613887166.8.

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3 years ago

I need help on this problem please

Marysya12 [62]

Answer:

rectangle

Step-by-step explanation:

it would be a rectangle i believ. you can prove it by creating a coordinate plane and placing the points and then connecting the dots

5 0

4 years ago