3 years ago

One of the following expressions is equivalent to 8x^2-10x+3. Which expression is it?

Mathematics

1 answer:

DanielleElmas [232]3 years ago

6 0

Answer:

Step-by-step explanation:

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ΔABC has three sides with these lengths: AB = 9, BC = 40, and CA = 41. What is the value of cos C?

kotykmax [81]

Answer:

$cos(C) =\frac{40}{41}\\\\cos(C)=0.976$

Step-by-step explanation:

To find the $cos (C)$ we must use the cosine theorem.

The cosine theorem says that:

$c^2 = a^2 +b^2 -2abcos(C)$

In this case:

$c=AB = 9$

$b=CA = 41$

$a=BC = 40$

$9^2 = 40^2 +41^2 -2(40)*(41)cos(C)$

$9^2- 40^2- 41^2 =-2(40)*(41)cos(C)$

$cos(C) = -\frac{9^2- 40^2- 41^2}{2(40)*(41)}$

$cos(C) =\frac{40}{41}\\\\cos(C)=0.976$

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3 years ago

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Anni [7]

Answer:

23 %

Step-by-step explanation:

151.34 ÷ 658 × 100

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2 years ago

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The Houston rockets scored 66 points in the second half. There are 24 minutes in a half. What was the average number of points p

anastassius [24]

The answer is 2.75, I believe.

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3 years ago

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Llana [10]

Answer:

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Step-by-step explanation:

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What is the range of (fog)(x)?

scoray [572]

Answer:

y=x

Step-by-step explanation:

domain: all real numbers

range: all real numbers

X/Y Intercept: (0,0)

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3 years ago