3 years ago

Multiply and simplify: 10x(9x^2 + 6x + 7)

Mathematics

1 answer:

maw [93]3 years ago

5 0

The answer is 90x^3+60x^2+70x

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14 in

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3 years ago

Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm. What is Rich's percent error in this c

Hitman42 [59]

Answer:

0.9%

Step-by-step explanation:

We have been given that Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm.

We will use percentage error formula to solve our given problem.

$\text{Percentage error}=\frac{\text{Experimental value-Actual value }}{\text{Actual actual}}\times 100$

$\text{Percentage error}=\frac{80.7-80}{80}\times 100$

$\text{Percentage error}=\frac{0.7}{80}\times 100$

$\text{Percentage error}=0.00875\times 100$

$\text{Percentage error}=0.875\approx 0.9$

Therefore, Rich's percent error in calculation is 0.9%.

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4 years ago

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Answer:

1. Blue = 8 votes

2. Green = 4 votes

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Step-by-step explanation:

okay I understand this.

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2 years ago

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One of the angles of a regular dodecagon is 150°. What is the sum of the measures of all the interior angles of this dodecagon?

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Step-by-step explanation:

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