3 years ago

Substract the polynomials and simplify (-3r2-2r-4)-(9r2+7r+2)

Mathematics

1 answer:

mina [271]3 years ago

6 0

Answer:

-12r2-9r-6

Step-by-step explanation:

-distribute the subtraction symbol to the second group of numbers

-(9r2+7r+2) = (-9r2-7r-2)

-then combine each term together (-3r2-2r-4)+(-9r2-7r-2)

= -12r2-9r-6

HOPE THIS HELPS!!

You might be interested in

Determine the equation of the line passing through the points <br> (4,-1) and (-2,-4)

jenyasd209 [6]

Answer:

y = 1/2x - 3

Step-by-step explanation:

the slope:

$m=\frac{-4-(-1)}{-2-4} =\frac{-4+1}{-6} =\frac{-3}{-6} =\frac{3}{6} =\frac{1}{2}$

the equation:

with the point (4, -1)

$y-(-1)=\frac{1}{2} (x-4)$

$y+1=\frac{1}{2}x-2$

$y=\frac{1}{2} x-2-1$

$y=\frac{1}{2} x-3$

I hope this help you

8 0

2 years ago

How many positive integers less than 250 are multiples of 5, but not multiples of 10?

SashulF [63]

Answer:

Step-by-step explanations: sometimes 5 times (number) is 250 but in this case your teacher did not tell you to multiply it by 10 but instead multiplying it by 5

8 0

3 years ago

Read 2 more answers

What is the volume of this cube?

Novay_Z [31]

Step-by-step explanation:

Use formula for cube volume:

V=a³

Then add informations you already have and you are done.

V=0,5³

V=0,125 m³

8 0

2 years ago

Read 2 more answers

Someone help me please

inna [77]

Answer:

Step-by-step explanation:

The formula of regular polygon with <em>n</em> sides of length <em>b</em> and apothem <em>a</em>:

$A=\dfrac{nba}{2}$

We have:

n = 6

b = 8

a = 6

Substitute:

$A=\dfrac{(6)(8)(6)}{2}=144$

The perimeter:

$P=6b\to P=(6)(8)=48$

6 0

2 years ago

Two angles are supplementary and one of them is 127° What is the size of<br> the other angle?

KengaRu [80]

Answer:

53 degree

Step-by-step explanation:

i just subtracted it (linear pair axiom)

6 0

2 years ago