3 years ago

Use the distributive property to expand the expression. 2(a2 − 5b) − (c2 − 1)

Mathematics

1 answer:

Goryan [66]3 years ago

4 0

2(a^2 - 5b) - (c^2 - 1) =
2a^2 - 10b - c^2 + 1 <===

You might be interested in

Kavi solved the system

Marianna [84]

Answer:

She should have substituted y = 17 - 2x in the first equation

Step-by-step explanation:

3x + 4y = 33

2x + y = 17

y = 17 - 2x

3x + 4(17 - 2x) = 33

3x + 68 - 8x = 33

5x = 35

x = 7

y = 17 - 2(7)

y = 3

x = 7, y = 3

Only one solution

6 0

3 years ago

Find the exact length of the third side.

pychu [463]

Answer:

$24x^{2} +7x^{2} =$

step-by-step explanation:

You have to solve this to get your answer. This is a case where you have to use the pythagorean theorem.

8 0

3 years ago

Read 2 more answers

Write the first 5 terms of the sequence 90 - 8n

Blababa [14]

I hope this helps you

90-8.5

90-40

50

4 0

3 years ago

PLEASE HELPPP MEEEEEEEEEE

qwelly [4]

Answer:

x = 17°

Step-by-step explanation:

<u>Angles And Parallel Lines </u>

If two parallel lines are crossed by a third line, corresponding angles are congruent. Also, consecutive angles are supplementary

We can clearly see in the image provided, being w and b parallel, that the corresponding angles (4x-3) and 65° are congruent. We can express that relation as

$4x-3=65$

Operating

$4x=65+3=68$

$x=\frac{68}{4}=17$

So the value of the angle x is 17°

8 0

3 years ago

80% of 65 please help

Sonbull [250]

The answer is 52.

65 x 0.8 = 52.

5 0

3 years ago

Read 2 more answers