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Alekssandra [29.7K]
2 years ago
7

Pls answer this fast (30 points)Simplify the algebraic expression -2(x - 3) + 4(-2 x + 8)​

Mathematics
1 answer:
Anna11 [10]2 years ago
6 0

Answer:

-10x + 38.

Step-by-step explanation:

-2(x - 3) + 4(-2x + 8)​

= -2x + 6 - 8x + 32

= -10x + 38.

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Can someone help me please? Am I right or no?
Juliette [100K]
The figure consists of three objects, a rectangle, a trapezoid, a triangle

Find the area of the rectangle
The rectangle is 16 in long and 9 in wide
a₁ = l × w
a₁ = 16 × 9
a₁ = 144 in²

Find the area of the trapezoid
The base of trapezoid is 31 in and 16 in, and the height is 35 - 20 = 15 in.
a₂ = 1/2 × (a + b) × h
a₂ = 1/2 × (31 + 16) × 15
a₂ = 1/2 × 47 × 15
a₂ = 352.5 in²

Find the area of the triangle
The base of the triangle is 31 in, the height is 20 in
a₃ = 1/2 × b × h
a₃ = 1/2 × 31 × 20
a₃ = 310 in²

Add the area together
a = a₁ + a₂ + a₃
a = 144 + 352.5 + 310
a = 806.5

The answer is 806.5 in²
4 0
2 years ago
What is the lcd of 1/4 and 2/3
Rudiy27
I hope this will help u <span>It looks like 12 is the smallest number that can be divided by both 3 and 4, so 12 is our LCD. Since 12 is the LCD, it will be the new denominator for our fractions. Now we'll change the </span>numerators<span> of the fractions, just like we changed the denominators. First, let's look at the fraction on the left: 1/4.</span>
6 0
2 years ago
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Leon simplified √180k/9k^5 His work is shown below. Leon got a simplified answer of 2/k^2√5 Did he simplify correctly?​
Deffense [45]

Answer:

No, 2/3 sqrt(5) k^(11/2)

Step-by-step explanation:

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On the first math test keiko answered
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