3 years ago

Hello Please help me.

Mathematics

1 answer:

olga55 [171]3 years ago

3 0

Answer:

Step-by-step explanation:

1) D

2) B

3) no solution

y ≤ 0.5x - 4 is area C including the red line

y ≥ 0.5x + 5 is area A including the blue line

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2 years ago

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Gemiola [76]

Answer:

3 7/16 cups

Step-by-step explanation:

5 1/2 x 5/8 = 55/16 = 3 7/16

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3 years ago

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Lynna [10]

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2 years ago

Given the lengths of two sides of a triangle, find the range for the length of the third side (between what two numbers should t

frozen [14]

Answer:

The length of the third side of given triangle lies between 6.5 and 19.9.

Step-by-step explanation:

The law of cosine is as follows

$c^{2} =a^{2}+b^{2}+2abcos\alpha$ ---------------1

⇒ a and b are the given sides of the triangle and c is the third side, and $\alpha$ is the angle between a and b .

In equation 1 , the maximum and minimum values of $cos\alpha$ are 1 and -1.

so the value of c lies in between

⇒ $\sqrt{a^{2}+b^{2}-2ab }$ and $\sqrt{a^{2}+b^{2}+2ab }$ = $|a-b| and |a+b|$

Given a=13.2 and b=6.7 so the the side lies in between |13.2-6.7| and |13.2+6.7|

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3 years ago

Simplify the expression given below. (732 - 83 + 21) + (-1363 - 11.2 + 133 + 19)

Vera_Pavlovna [14]

Answer:

732−83+21−1363−11.2+133+19= −552.2

8 0

3 years ago

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