Evaluate the expression, using the given value of the variable. 2 – 8x + 3x when x = 5 A. –53 B. –23 C. –15 D. 57

Answers

Answer 1

Answer: $2- 8x + 3x =2-5x \n \nx=5 \n \n2-5x = 2-5\cdot 5=2-25=-23\n \nAnswer : \ B. \ \ \ -23$

Answer 2

Answer: 2 - 8x + 3x
x = 5
2 - 8(5) + 3(5) =
2 - 40 + 15 =
- 40 + 17 = - 23. (Correct answer B.)

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What is the surface area of the composite figure? (Use 3.14 for π .)

Answers

so, the Area of a sphere is going be = 4πr2 the area of a cylinder will be 2πr(h+r)

so your total area will be half of the sphere's total area that is 4πr^2/2⟹2π8^2 PLUS the cylinder's 2π8(7+8)

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I hope i help

What shape is this?

Answers

The shape is a trapazoid

trapezoid.A trapezoid is a 4-sided flat shape with straight sides that has a pair of opposite sides parallel.

What is the measurement of N?
A) 70°
B) 71°
C) 72°
D) 73°

Answers

This whole triangle equals 180 degrees.

180-107=73! (you must subtract 107 from 180 to find the other sides degree)

The answer is: D. 73!

Sam wrote this expression to describe the number of apples he gave away to his friends. 12 – a Which situation could be described by this expression? A. Sam does not know how many apples he has. He knows he gave away 12 apples. B. Sam knows he has 12 apples left. He does not know how many apples he gave away. C. Sam knows he has 12 apples left. He gave away half of his apples. D. Sam knows he had 12 apples to start. He does not know how many apples he gave away.

Answers

D. Sam knows he had 12 apples to start. He does not know how many apples he gave away.

Because he is subtracting (a) from 12. Meaning he is trying to figure out what (a) is. Hope this helps

Final answer:

The expression 12 - a represents the number of apples Sam gave away to his friends. Option D best describes this situation.

Explanation:

The expression 12 - a represents the number of apples Sam gave away to his friends.

Option D, 'Sam knows he had 12 apples to start. He does not know how many apples he gave away,' best describes this situation. In this case, Sam started with 12 apples but does not know the exact number he gave away.

Learn more about Expressing unknown quantities here:

brainly.com/question/33452636

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How many times can 15 go into 96?

Answers

6 times,96/15 is equal to 6.4

15 can go into 96 ... 6.4

Suppose that Sahil knows that 45 people with ages of 18 to 29 voted. Without using a calculator, he quickly says then 135 people with ages of 30 to 49 voted. Is he correct? How might Sahil have come up with his answer so quickly?The pic at bottom

Answers

I'm trying to figure this on out for my homework to I will tell you when I have it.

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