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ElenaW [278]
2 years ago
6

Solve for x 2(x-3)+21=-3

Mathematics
1 answer:
algol [13]2 years ago
6 0

Answer:

X=-9

Step-by-step explanation:

First, distribute the 2. So, it would be 2x-6+21=-3. Then, bring the -6 and 21 to the right side. It would now be 2x= -18. X would be equal to -9.

Hope this helps!

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Answer:

2x^2 - 12x + 16

Step-by-step explanation:

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ipn [44]
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3 years ago
A scale drawing of a square has a side length of 9 inches. The drawing has a scale of 1 in. : 5 mi. Find the actual perimeter an
Dennis_Churaev [7]

Answer:

Area = 2025 miles²

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Step-by-step explanation:

Given the following :

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Actual length of the drawing :

1 inch = 5 miles

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Hence,

Area of a square = a²

Where a = side length

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Actual area of square = 45² = 2025 miles²

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Perimeter of a square = 4a

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6 0
2 years ago
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kenny6666 [7]
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3 years ago
Factor trinomial by grouping : 10x^2-9x+2​
Angelina_Jolie [31]

Answer:

(2x - 1)(5x - 2)

Step-by-step explanation:

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term, that is

product = 10 × 2 = 20 and sum = - 9

The factors are - 5 and - 4

Split the middle term using these factors

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= 5x(2x - 1) - 2(2x - 1) ← factor out (2x - 1)

= (2x - 1)(5x - 2)



8 0
3 years ago
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