What is 3k(-5k+21)+2(2.5k+90) <-- Confused please help

1 answer:

5 0

Use distributive prpoerty
a(b+c)=ab+ac

distribute each
3k(-5k+21)=-15k^2+63k

2(2.5k+90)=5k+180

so nowe we have
-15k^2+63k+5k+180
add like terms
-15k^2+68k+180
that is the answer

You might be interested in

10e=1 what does e equal need this asap

Dahasolnce [82]

Answer:

To solve for e, divide 10 from each side.. 1 divided by 10 e=0.1

8 0

3 years ago

Billie needs to have her refrigerator repaired. She contacts two appliance companies and is given the rates shown in the table.

elixir [45]

149 dat would be your answer tell me if I’m wrong .

6 0

3 years ago

Read 2 more answers

|7-4x|>1 como se resuelve está inecuación con valor absoluto??

Phoenix [80]

Answer:

Step-by-step explanation:

te da x<3/2 y x<2, pero la segunda solucion abarca la primera. Por lo tanto creo q seria x<2

3 0

3 years ago

What is the solution to this inequality 9+x>6

Lana71 [14]

Answer:

x > -3.

Step-by-step explanation:

9+x>6

Subtract 9 from both sides:

x > 6 - 9

x > -3.

3 0

4 years ago

Help me please........

elena-s [515]

Answer:

Step-by-step explanation:

By the Pythagorean Theorem, you know that:

$2^2+5^2=c^2$

Therefore, the correct answer is choice A. Hope this helps!

3 0

3 years ago

Read 2 more answers