All categories

3 years ago

What is the sum of the polynomials?

Mathematics

2 answers:

rewona [7]3 years ago

8 0

7x^2-9x-5 hope it helps

Lorico [155]3 years ago

3 0

A. is the answer look at the attached photo

You might be interested in

Why does -4i*i=4? what happens to the i when you multiply it

Alchen [17]

$▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪$

As we know that :

${i}^{2} = i \times i = - 1$

so, over here

$- 4i \times i$

$- 4 {i}^{2}$

plugging the value of i² as -1

$- 4 (- 1)$

8 0

3 years ago

I need help on this.

Ivahew [28]

Answer:

Evaluate the terms inside of the parentheses

Step-by-step explanation:

According to PEMDAS, you always start solving an equation by answering what is inside of the parentheses first. (That's what the 'P' in PEMDAS stands for!)

Therefore, this is the correct answer.

8 0

4 years ago

Read 2 more answers

Please I really need help! Can you answer A and B and I will mark you as brainliest!

Georgia [21]

a) The average arithmetic mean is calculated by adding all of the values and then dividing the sum by the total number of values.

$\frac{198+199(3)+200(2)+201(5)+202(2)}{13} =200.3$

Which is 200.3.

b) Assume that the new average mean is 201, then

$201 = \frac{198 + 199(3) + 200(2) + 201(5) + 202(2)+x}{14}$

Solve for x.

$2814= 2604x$

Divide by 2604 to solve for x.

$\frac{2814}{1604} = x = 1.75$

So the height of the new player is 175 cm.

3 0

3 years ago

Please help 12 points

grin007 [14]

Answer:

SAS because they stand for side angle side

6 0

2 years ago

Find the surface area of the rectangular prism.<br> 4 km<br> 5 km<br> 2 km

Reptile [31]

76 is the answer, I put the answer in the photo below also!

6 0

2 years ago