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Gekata [30.6K]
3 years ago
11

What is the circumference of a 9 m circle?

Mathematics
1 answer:
zhenek [66]3 years ago
5 0
From what I know its 56.52m
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The points , (−15,1) and , (−7,r) lie on a line with slope 5/4. Find the missing coordinate r. Click image to enlarge
Nadya [2.5K]

The missing coordinate r is 11.

Solution:

Given points are (–15, 1) and (–7, r).

x_{1}=-15, x_{2}=-7, y_{1}=1 \text { and } y_{2}=7

Slope (m) = \frac{5}{4}

<u>To find the missing coordinate r:</u>

Slope formula:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

Substitute the given values in the formula.

$\frac{5}{4}=\frac{r-1}{-7-(-15)}

$\frac{5}{4}=\frac{r-1}{-7+15}

$\frac{5}{4}=\frac{r-1}{8}

Do cross multiplication.

8 \times 5=4(r-1)

40 = 4r – 4

Add 4 on both side of the equation.

44 = 4r

Divide by 4 on both side of the equation.

11 = r

⇒ r = 11

Hence the missing coordinate r is 11.

6 0
3 years ago
Pls help with this question 1-5 thanks
belka [17]

maybe 1/5 (409) ::(880) 1+2

5 0
3 years ago
Frank ate 12 pieces of pizza and Dave ate 15 pieces. “I ate
kobusy [5.1K]

Answer:

Frank

Step-by-step explanation:

So If Dave ate ¼ more than Frank, you would need to divide the denominator by the amount of pizzas, so if 12÷4 is 3 he ate three more pizzas than Frank. If we do the same for Frank, ⅕ or 15÷5=3

So the correct answer would be Frank because 12 is less than 15

My apologies if this wasnt explained very well

7 0
4 years ago
Can you show a break down of the Distributive Property for 5x198
nikitadnepr [17]
5x100+5x90+5x8 and there you go all you need to do is do this problem the right way and you will get the right answer
4 0
4 years ago
Alfredo has different colored spiral notebooks in his backpack. Which of the following models could be used to simulate a 1 in 3
3241004551 [841]

Answer:

U typed alfredo.. I like alfredo. Alfredo is yum.

Step-by-step explanation:

7 0
3 years ago
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