3 years ago

Factor the expression -45x^2 +5

1 answer:

5 0

$-45x^2 +5 \\ \\ GCF = 5 \\ \\ 5( \frac{45x^2}{5} - \frac{5}{5} ) \\ \\ -5(9x^2-1) \\ \\ -5((3x)^2-1^2) \\ \\ -5(3x+1)(3x-1) \\ \\ Answer: \fbox {-5(3x+1)(3x-1)}$

You might be interested in

A swimming pool is draining at a constant rate. The table shows the proportional relationship between the change in the water le

kaheart [24]

Answer:

first answer:-1.75

second:-15.75

third:-40.25

Step-by-step explanation:i am too lazy srry

6 0

3 years ago

What is the slope of the line shown below?

Sergio039 [100]

Answer:

Option D

Step-by-step explanation:

We are given the two points of (5, 11) and (-5, -1).

Use the slope formula.

$m=\frac{rise}{run}=\frac{-1-11}{-5-5} =\frac{-12}{-10} =\boxed{\frac{6}{5}}$

The correct option should be Option D.

Hope this helps you.

7 0

3 years ago

A driver averages 42 miles per hour and took 15 hours to travel between two cities what is the distance between the two cities

pishuonlain [190]

Answer:

The distence bettween the two cities is 630miles

Step-by-step explanation:

So you take 42 and multiply it by 15 and you get 630.

5 0

3 years ago

Lisa studies 5 hours for a particular test and gets a score of 77. At this rate, how many hours would she have to study to get a

Murljashka [212]

77/5=99/x
77x=5*99
77x=495
x=495/77
x=6.4
she needs to study 6.4 hrs to get 99

4 0

3 years ago

In triangle ABC below, BD is the altitude. Point A represents Omari's house, point C represents the restaurant where Omari works

tester [92]

Answer:

Step-by-step explanation:

4 0

3 years ago