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RideAnS [48]
2 years ago
11

Solve the formula A=1/2h(a+b)

Mathematics
1 answer:
lapo4ka [179]2 years ago
3 0

Answer:

Step-by-step explanation:

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Which of the following represents the factorization of the trinomal below
Mice21 [21]
B is the correct answer. If you use the distributive property correctly you will see why.

(4x+3)(2x+1)= 8x^2+4x+6x+3
= 8x^2+10x+3


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5 0
3 years ago
An online flower service sells boxes of roses. Each box contains one dozen roses of only one color. The choices are red, white,
Akimi4 [234]

Answer:

The answer is 21

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3 years ago
A mistake was made in the steps shown to simplify the expression. Which step includes the mistake?
kolezko [41]
Step 2 how did the 8 get there?
6 0
3 years ago
A rectangle has a length of 12 yards less than 3 times its width. If the area of the rectangle is 135 square yards, find the len
Aleonysh [2.5K]

Answer:

The length is 15 yards

Step-by-step explanation:

Given

Represent the width with W and length with L: So

Area = 135yd^2

L=3W - 12

Required

Determine the length of the rectangle:

Area is calculated as thus:

Area = L * W

Substitute 3W - 12 for L and 135 for Area

135= (3W - 12) * W

135= 3W^2 - 12W

Reorder:

3W^2 - 12W - 135= 0

Divide through by 3

W^2 - 4W - 45 = 0

Expand:

W^2  - 9W + 5W - 45 = 0

W(W  - 9) + 5(W - 9) = 0

(W + 5)(W-9) = 0

W + 5 = 0 or W - 9 = 0

W = -5 or W = 9

But width can't be negative

So:

W = 9

Recall that: L=3W - 12

L = 3 * 9 - 12

L = 15

<em>Hence, the length 15 yards</em>

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3 years ago
What is division story problem where the dividend is a three-digit number and the divisor is a single digit.
nasty-shy [4]

Answer:

dddddddddv

Step-by-step explanation:

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3 years ago
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