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iris [78.8K]
3 years ago
12

Evaluate 4a + 7b + 3a − 2b for a = 5 and b = −3.

Mathematics
1 answer:
blsea [12.9K]3 years ago
5 0

Answer:

<h2>20</h2>

Step-by-step explanation:

4a+7b+3a-2b\qquad\text{combine like terms}\\\\=(4a+3a)+(7b-2b)\\\\=7a+5b\qquad\text{put a = 5 and b = -3 to the expression}\\\\7(5)+5(-3)=35-15=20

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m_a_m_a [10]
88.3 is what % of 21
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% = 4.204
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3 years ago
Line AB is Perpendicular to line BC. A=(-3,2) and C=(2,7). Which of the following could be the coordinates of B? Select all that
Llana [10]

Answer:

The answer would be Choice F; (-3,7)

Step-by-step explanation:

  1. Plot the two guaranteed given points
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3 years ago
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Answer:

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Step-by-step explanation:

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or

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plug in any number

2+6+8=2(2)-2+14

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another example

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