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2 years ago

The difference between twice a number and 8

Mathematics

1 answer:

Otrada [13]2 years ago

6 0

Answer:

2x-8

Step-by-step explanation:

2x-8

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Express x^2+4x-7 in the form (x+a)^2-b where a and b are integers

lukranit [14]

Answer:

(x + 2)^2 - 11.

Step-by-step explanation:

f(x) = x^2 + 4x - 7

Now x^2 + 4x = (x + 2)^2 - 4 so we have:

f(x) = (x + 2)^2 - 4 - 7

f(x) = (x + 2)^2 - 11.

4 0

3 years ago

How to find the median

KengaRu [80]

We can find the median by using the formula:

(N+1/2) th item

For example:

Given data: 4,6,3,5,7

We have to arrange the data into ascending order:

=3,4,5,6,7

N(total no of items)=5

Now,

Median=(N+1/2)th item

 =(5+1/2) th item

 =(6/2) th item

 = 3rd item

Median=5

Hope it helps

Good luck on your assignment

3 0

3 years ago

Read 2 more answers

The product of twenty-one negative integers is negative. True False

Shkiper50 [21]

Answer: TRUE:
_____________________
It is TRUE that the product of 21 (twenty-one) negative integer is a negative number; because you are multiplying an ODD NUMBER of NEGATIVE INTEGERS.
________________________

5 0

3 years ago

Read 2 more answers

What is the square root of -1?

Gelneren [198K]

Answer:

Step-by-step explanation: im guessing 1

6 0

3 years ago

Please answer ASAP with a detailed expression, who ever is right will get Brainliest! Thank you in advance!

Gre4nikov [31]

Answer:

π=C2r

Step-by-step explanation:

if the πgoes to the other side of equal then the C will go to other side to multiply the 2r

5 0

1 year ago