1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
masya89 [10]
2 years ago
15

Factor the expression. 3r2 – 75

Mathematics
1 answer:
VashaNatasha [74]2 years ago
8 0

Answer:

3(r + 5)(r - 5)

Step-by-step explanation:

Both 3 and 75 are divisible by 3, so we take out a 3.

3(r^2 - 25)

Next, we can factor r^2 - 25. It's a difference of squares.

3(r + 5)(r - 5)

Brainliest, please :)

You might be interested in
You are fencing a rectangular puppy kennel with 25 ft of fence. The side of the kennel against your house does not need a fence.
Sever21 [200]

Answer:

9 by 8 ft

Step-by-step explanation:

if you subtract the 9 ft for the side opposite your house you are left with 16. divide 16 by 2 for the sides sticking out from your house. the answer is 8 so the cage would be 9ft by 8ft

5 0
3 years ago
suppose the population of a certain city is 5355 thousand. It is expected to decrease to 4566 thousand in 50 years. Find the per
xz_007 [3.2K]

Answer: 14.7338936% decrease

\frac{5355}{100} = \frac{4566}{x}

cross-multiply

85.2661064 = x

100 - 85.2661064 = 14.7338936

Check: 0.852661064 * 5355 = 4566

If permitted, you may round for a simpler (yet less precise and exact) answer.  For instance, rounding to the hundredths would make it ~14.73%.

5 0
3 years ago
An electronics store reduced the price of a TV from $1200 to $1140. What was the percent of decrease?
Sunny_sXe [5.5K]

Answer:

5%

Step-by-step explanation:

4 0
3 years ago
If I run 6 m/s I can finish a lap of a track in 4 minutes. If I run at 12 m/s, how long will it now take?
Fofino [41]

Answer:

2 minutes

Step-by-step explanation:

When you double the speed, the time needed to finish the lap would halve.

6 *2 =12

4/2 =2

3 0
2 years ago
I don’t know what to do
stira [4]

Answer:

im not sure sorry

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • How do you factor the expression<br> 20k+50
    10·2 answers
  • What is the value of 3 in 23
    15·2 answers
  • A communications channel transmits the digits 0 and 1. However, due to static, the digit transmitted is incorrectly received wit
    13·1 answer
  • Help me pleaseeeee it’s timedddddd
    8·1 answer
  • Libby, Mike and Kyle share £44 in the ratio 2 : 3:6
    7·1 answer
  • (6p+4)+(-5p+8)<br> Plz i need help
    6·2 answers
  • Describe the vertical shift of Y=x^2-9
    12·1 answer
  • She arrived at the car park at 2.15pm and leaves at 4.45pm on Thursday. how much does Diane pay for her car parking? Monday - Fr
    11·1 answer
  • Use a factor tree to find the GCF of 32 and 80.
    5·1 answer
  • Which is vertical line?<br> A) y=7x<br> B) y=7<br> C)=7
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!