3 years ago

Please help. math homework. only three questions.

Mathematics

1 answer:

Wittaler [7]3 years ago

8 0

Step-by-step explanation:

1). 1

2). 36

3). 16

sorry I can't explain it properly, all you have to do is to dive the coefficient of x by 2 and square the result

You might be interested in

Properties of multiplication 50b=10 what is the answer?

poizon [28]

B is equal to 1/5. Hope I was able to help

8 0

3 years ago

A new vaccine claims to reduce the risk of contracting chickenpox from 80% to 20%. Which of the following statements is true reg

dlinn [17]

Answer:

The vaccine decreases the risk of contracting chickenpox by 75 percentage

Step-by-step explanation:

Risk of contracting chickenpox is reduced from 80% to 20%.

This reduction in percentage is:

(80 - 20)/80*100% = 75%

Correct choice is:

The vaccine decreases the risk of contracting chickenpox by 75 percentage

6 0

3 years ago

Find the value of 5(a-4b) when a =-7 and b=1/4

tatiyna

Answer:

- 40

Step-by-step explanation:

$5(a - 4b) \\ = 5 \bigg(- 7 - 4 \times \frac{1}{4} \bigg ) \\ = 5 \bigg(- 7 - 1 \bigg ) \\ = 5 \times ( - 8) \\ = - 40$

3 0

3 years ago

2x^2+7x-k=0 find all the values of k

mojhsa [17]

Answer:

Find ur attachment here plz thankyou

Step-by-step explanation:

7 0

3 years ago

What answer is correct? The audio is just reading the question.

RSB [31]

Answer:

its 7

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers