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3 years ago

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

Mathematics

2 answers:

Norma-Jean [14]3 years ago

6 0

4a + 7b + 3a - 2b
Combine like terms
7a + 5b
Plug in the values for a and b.
7(5) + 5(-3)
35 - 15
20

RSB [31]3 years ago

3 0

The answer is 20. I hope this helps.

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If cot theta= 4/3, find csc theta

Marrrta [24]

Answer: Option d.

Step-by-step explanation:

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$csc^2\theta=cot^2\theta+1$

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3 years ago

Please help! if abcd is dilated by a factor of 3, the coordinate of b would be

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Answer:

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Step-by-step explanation:

The coordinates of B to start with is

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The new coordinates of B' would be

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- The number 3 is called a "<u>scale factor</u>"

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- If the scale factor is <u>greater than 1</u>, the size of the shape overall increases

- If the scale factor is <u>less than 1</u>, the size of the shape overall decreases

- If the scale factor is <u>negative</u>, the shape size stays the same. The shape just rotates 180 degrees and moves to the opposite quadrant.

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