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mrs_skeptik [129]
2 years ago
13

30 points!!! Help me on 1. 2. 3.

Mathematics
1 answer:
BaLLatris [955]2 years ago
8 0
I think 1 is to press C
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The poster in the library is rhombus shaped. If one side length is 11 inches long, what is the perimeter of the poster?
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2 years ago
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Simplify, THEN evaluate for x = 3, y = -4, and z= -2.<br> 7(x - y) - 3(2 + 2x)
Tamiku [17]

Answer:  25

<u>Step-by-step explanation:</u>

   7(x - y) - 3(2 + 2x)

= 7x - 7y  - 6  - 6x

=   x - 7y  - 6

for x = 3, y = -4

      3 - 7(-4) - 6

=     3 + 28  - 6

=         31     - 6

=             25

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3 years ago
1) (3.1 x 10^1)(4.3 x 10^-6)​
allsm [11]

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3 years ago
The area of a particular rectangle is 72. If the length of the rectangle is twice
soldier1979 [14.2K]

Answer:

6

Step-by-step explanation:

Suppose the width is "a".  Then the length is 2a.

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4 0
3 years ago
The figure is made up of a semicircle and a rectangle.
dezoksy [38]
Area = Area of rectangle + area of semicircle

Area of rectangle = 5 x 1 = 5 m^2
area of semicircle = πD²/8 = 3.14 x 5² / 8 = 9. 8125
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4 0
2 years ago
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