What is the coefficient in the following expression , 5a^2-7 1 . a
2. 5
3.2
4. 7

Answers

Answer 1

Answer:

The required coefficient in the given expression 5a² - 7 is 5. Option 2. is correct.

The coefficient in the expression 5a² - 7 is the numerical value that multiplies the variable term, which is "a²" in this case.

In the expression 5a² - 7, the coefficient is the number that multiplies the variable term, which is a². Here, the coefficient is 5. It determines the scale or magnitude of the term with respect to the variable a. The constant term -7 does not have a coefficient as it is not multiplied by any variable.

The coefficient is 5.

So, the correct answer is option 2: 5.

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Answer 2

Answer: its B thank you for asking

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A pizza box which has a diameter of 15 inches, if the box is 1.5 inches tall, what is the surface area of the pizza box?

Answers

Well you would do 15 x 1.5 and that would be your answer.

You would do 15 times 1.5

5 times what equals 275?

Answers

275 divided by 5 is 55. Therefore, 55x5=275

55*5=275
Also you can try and divide 275 by 5 and get 55
The * sign means to multiply

What is the ratio 9 1/2 to 12 2/3

Answers

_9.5:12.6That is the answer, btw the 6 is repeating

Write an algebraic expression for 15 decreased by twice a number

Answers

15-2x= that would be the algebraic equation. Remember that decrease usually means minus. A number is always represented by a variable, and then anything that by is usually a multiplication or division depending on how its stated.

An algebraic expression is, obviously, an expression with a variable.

"A number" would represent a variable, which, in this case, we'll use y.

So, 15 decreased by twice x.
15 - y x 2 =

I hope this helped :)

3 h 6 min 45 sec+8h 55 mins 20 sec

Answers

3 hours . . . 6 minutes . . . 45 seconds
+ 8 hours . . 55 minutes . . . 20 seconds
________________________________
11 hours . . 61 minutes . . . 65 seconds

But 65 seconds = 1 minute . . . 5 seconds

11 hours . . 62 minutes . . . 5 seconds

But 62 minutes = 1 hour . . . 2 minutes

12 hours . . 2 minutes . . . 5 seconds

I think this is regrouping, but with 60s instead of 10s.

Convert them both to minutes to get: 186 mins and 45 sec + 535 mins and 20 sec

Add to get: 772 mins and 5 sec

Find the quotient. Simplify your answer.
y-4/y ÷ 6/y