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wlad13 [49]
3 years ago
11

Maths watch homework help please​

Mathematics
2 answers:
pychu [463]3 years ago
7 0

Answer:15m on each side

Step-by-step explanation:

KiRa [710]3 years ago
3 0

Answer:  102.9 m

<u>Step-by-step explanation:</u>

First, use Pythagorean to find the length of AC

 AB²  +  AD²  = AC²

 50²  +   80²  = AC²

2500 + 6400 = AC²

             8900 = AC²

             94.34 = AC

Next, subtract 15 (the diameter of the circle) from AC to find the length of the straight line.

94.34 - 15 = 79.34

Next, find the circumference of the circle

C = πd

C = 15π

They are only walking around 1/2 of the circle so divide it by 2.

(1/2)C = (15/2)π

          ≈ 23.56

Add the straight line (79.34) and the half circumference (23.56) to find the total distance traveled.

79.34 + 23.56 = 102.9

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2 years ago
Which expressions are equivalent to 8 (negative 10 x + 3.5 y minus 7)? Select two options.
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Question is Incomplete; Complete question is given below.

Which expressions are equivalent to 8 (negative 10 x + 3.5 y minus 7)? Select two options. Negative 80 x + 24.5 y minus 56 Negative 80 x + 28 y minus 56 80 x + 28 y + 56 4 (negative 20 x + 7 y minus 14) Negative 4 (negative 20 x + 7 y minus 14)

Answer:

Negative 80 x + 28 y minus 56

4 (negative 20 x + 7 y minus 14)

Step-by-step explanation:

Given:

8(-10x+3.5y-7)

We need to find the equivalent expression for given expression.

Solution:

8(-10x+3.5y-7)

First we will apply distributive property for given expression.

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So we get;

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Hence first expression equivalent to given expression is -80x+28y-56.

Now again evaluating the expression we get;

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-4\times20x+4\times7y-4\times14\\\\4(-20x+7y-14)

Hence second expression equivalent to given expression is 4(-20x+7y-14).

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Factor 4p2−16p+12

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