Ask question

Ask question

All categories

3 years ago

9

Which word phrases represent the variable expression 7d? Choose all answers that are correct. A. the product of 7 and a number B

. the sum of 7 and a number C. 7 times a number D. a number divided by 7

2 answers:

amm18123 years ago

8 0

A and D are correct.

Trava [24]3 years ago

3 0

Its actually A. and B. Because if a number is at the end of a number like this 7d its always multiplication.

You might be interested in

a perfect is to be chosen from a class of 16 girls and 14 boys.what is the probability that the prefect is a girl

LiRa [457]

Answer:

<h2>8/15</h2>

Step-by-step explanation:

$16\:girls \\14\:boys\\\\Probability = \frac{Event}{Total \:possible\:outcome}\\\\ Event=16\\\\ Total\:possible\:outcome = 16+14=30\\\\P = \frac{16}{30}\\ \\Probability = \frac{8}{15}$

7 0

3 years ago

Use the Addition Formula for Cosine to prove the Double-Angle Formula for Cosine. cos(2x) = cos2(x) − sin2(x) Rewrite 2x as x +

andre [41]

Answer with Step-by-step explanation:

We are given that

LHS

$cos 2x$

To prove that

$cos 2x=cos^2x-sin^2 x$

$cos(x+x)$

We know that

$cos(x+y)=cos xcosy-sinx siny$

Using the formula

$cos(x+x)=cosx\cdot cosx-sinx\cdot sinx$

$cos2 x=cos^2 x-sin^2 x$

By using

$cosx\cdot cosx=cos^2 x$

$sinx\cdot sinx=sin^2 x$

LHS=RHS

Hence, proved.

3 0

3 years ago

Can someone tell me if I did this right? If it's wrong can you tell me how to do it step by step? Thanks

Lesechka [4]

Hi there!

So first off, here are little definitions you need to know in order to be able to answer your question :

<u>Constant</u> means that the rates of change are the same.

<u>Variable</u> means that the rates of change are different.

But from what I can see, you don't even need those definitions because you got both answers right!

Continue your great work! If there's anything just let me know! :)

6 0

3 years ago

Questions 1-3 40 points

meriva

Answer:

16%

Step-by-step explanation:

The additional wage amount is $80.

The original wage amount is $500.

The ratio of the two is ...

$80/$500 = 0.16 = 16/100

To express that ratio as a percentage, multiply it by 100%.

0.16 × 100% = 16%

_____

It might help you to think of the percent sign (%) as a fancy way to write "per hundred" (/100). Of course, using your knowledge of place value, you know that 0.16 = sixteen hundredths = 16/100.

Realizing the meaning of the % sign, you can immediately write this as 16%.

4 0

2 years ago

What is the missing number?

andriy [413]

As it appears to be the same thing on both sides so far wouldn't you think that it's 8?

6 0

2 years ago