3 years ago

Which expression has the same value as 5(4x+4)

1 answer:

8 0

Answer: 20x + 20

Step-by-step explanation: In this problem, the 5 "distributes" through the parentheses, multiplying by each of the terms inside.

So we have 5(4x) + 5(4) which simplifies to 20x + 20.

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If cos∠A=3421,000, then what is m∠A to the nearest degree?

lana66690 [7]

Wow ! That's some cosine !
No angle has a cosine greater than ' 1 '.
The question has no answer.

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a family went out to dinner and the cost of the food was $80 .If the trip given was 15%, what was the total cost

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3 years ago

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I need help with this question please

german

Answer:

Step-by-step explanation:

Given

$A =(x_1,y_1)$

$B =(x_2,y_2)$

$C =(x_3,y_3)$

$D =(x_4,y_4)$

Required:

Which condition proves that AB is perpendicular to CD

First, calculate the slopes of both.

<u>For AB</u>

$m_1 = \frac{y_2 -y_1}{x_2 - x_1}$

$m_2 = \frac{y_4 -y_3}{x_4 - x_2}$

The condition of perpendicularity is:

$m_1 * m_2 = -1$

Substitute values for m1 and m2

$\frac{y_2 -y_1}{x_2 - x_1} * \frac{y_4 -y_3}{x_4 - x_2} = -1$

Option (c) is correct

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3 years ago

A circular garden has a diameter of 10 feet. Approximately how much edging trim is needed to surround the garden by placing the

iren2701 [21]

Answer:

31 feet

Step-by-step explanation:

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2 years ago