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Dmitry [639]
3 years ago
8

I need help with this question

Mathematics
1 answer:
Eddi Din [679]3 years ago
6 0

Answer:

Option D

Step-by-step explanation:

a^2 + b^2 = c^2

5^2+b^2=9^2

25+b^2=81

b^2=56

b=2√14

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Suppose that the height (in centimeters) of a candle is a linear function of the amount of time (in hours) it has been burning.
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Answer:

Hey! The answer is 25,4 centimeters.

Step-by-step explanation:

In a linear function you can use y=mx+n

So if x = hours and y= height.

You know that

\left \{ {{27,8=11m +n} \atop {24,8=26m +n}} \right.

So:

If you multiply (24,8=26m +n) x-1

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Adding up the other equation

-24,8 = -26m -n

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<u>3 = -15m</u>

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This results that te linear function for this equation is:

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4 years ago
Solve the following system:
Angelina_Jolie [31]
You can rewrite the second equation because you know what y equals, so you can write it as 2x + x + 3 = 9
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Answer:

Step 1: 8 + 16x Step 2: 4(4) + 4(12x) Step 3: 4(4 + 12x) Step 4: Dimensions of the rectangle are 4 and 4 + 12x In which step did the student first make an error and what is the correct step? Step 3; 4 + (4 + 12x) Step 3; 4 + (4 ⋅ 12x) Step 2; 4(2) + 4(4x) Step 2; 4(2) + 4x(2)

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Description:

1. One of the first steps is to place the compass on the point and from

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