3 years ago

Please answer correctly !!!!!!!!! Will mark brainliest !!!!!!!!!

Mathematics

1 answer:

Dvinal [7]3 years ago

5 0

Answer:

13x - 8y

Step-by-step explanation:

Step 1: Write expression

(6x - y) + (7x - 7y)

Step 2: Combine like terms

13x - 8y

You might be interested in

An angle is 4 times as great as it's supplement. Find the measure of the supplement of the angle

FromTheMoon [43]

It is 40 and 160. (:

3 0

3 years ago

Find a degree 3 polynomial having zeros -5, 1 and 5 and the coefficient of x^3 equal 1

mote1985 [20]

Answer:

$x^3 -x^2 -25x +25$

Step-by-step explanation:

$\text{The roots are,}~ \alpha = -5,~ \beta = 1 ~ \text{and}~ \gamma = 5\\\\\text{The polynomial is,}\\\\~~~x^3 - (\alpha + \beta + \gamma)x^2+(\alpha \beta + \beta \gamma+ \gamma \alpha)x - \alpha\beta \gamma\\\\=x^3 - (-5+1+5)x^2 +(-5 \cdot 1 + 1 \cdot 5 + 5 \cdot -5)x - (-5)(1)(5)\\\\=x^3 -(0+1)x^2 + (-5+5-25)x +25\\\\=x^3 -x^2 -25x +25$

7 0

2 years ago

4,3,2,5, 6, 6, 10, 5, 6, 2, 3, 4, 6, 7, 14,5<br> 1. What is the mean of the data set?

tankabanditka [31]

Answer:5.5

Step-by-step explanation:

when all the numbers are added up =88

88 divide by 16 because their is 16 numbers in this sequence=5.5

3 0

3 years ago

PLS HELP ME, PLS THIS IS DUE FIRST CORRECT ANSWER GETS BRAINLIEST

UkoKoshka [18]

Answer:

I think 87.2% is the correct answer.

I think it will help you

6 0

2 years ago

Decide whether y is a function of x.<br> y=-3x-4

Nataly [62]

Yes, for every value of x, there is only one value of y. This means that y is a function of x.

4 0

3 years ago