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
nordsb [41]
2 years ago
15

Factor the polynomial completely 10³ -25r² - 12r + 30

Mathematics
1 answer:
Olin [163]2 years ago
5 0
ANSWER
(5r^2 - 6)(2r - 5)

EXPLANATION
Factor by grouping
(10r^3 - 25r^2) + (-12r + 30)

Factor a GCF
5r^2 (2r - 5) -6 (2r - 5)

Combine groups
(5r^2 - 6)(2r - 5)

CHECK
Use FOIL

First: 5r^2*2r = 10r^3
Outside: 5r^2*-5 = -25r^2
Inside: -6*2r = -12r
Last: -6*-5 = 30
You might be interested in
The length of segment with endpoints (0,-1) and (4,7)
Art [367]

Answer:

Length = 9 units

Explanation:

Length between two points...,

Apply the following formula,

Length = square root of [(difference in x coordinates)^2 + (difference in y coordinates)^2]

Length = square root of [ (4 - 0)^2 + (7 - -1)^2 ]

Length = square root of (80)

Length = 9 units

4 0
3 years ago
A city doubles its size every 79 years. If the population is currently 200,000 what will the population be in 316 years?
DiKsa [7]

Answer:

800,000

Step-by-step explanation:

316÷79=4

we do 4×200,000 to find the answer.

7 0
3 years ago
Can you please help me solve for the area
ycow [4]

Answer:

area is equal to 198 cm^2

Step-by-step explanation:

the height h of the left triangle can be obtained by

Pytagoras theorem:

5^2+h^2=13^2\\25+h^2=169\\h^2=169-25\\h^2=144\\h=\sqrt{144} \\h=12

the, the area of the left triangle is

A_1=\frac{5*12}{2} \\A_1=5*6\\A_1=30

the area of the right triangle is

A_2=\frac{2*12}{2} \\A_2=12

and the area of the rectangle in the middle is

A_3=(13)(12)\\A_3=156

Por tanto, el area total sera

A=A_1+A_2+A_3\\A=30+12+156\\A=198

8 0
3 years ago
What is one fith times 15
Rus_ich [418]
One fifth is the same as \frac{1}{5} and 15 is the same as \frac{15}{1}

So just times across, \frac{1}{5} × \frac{15}{1}
Resulting in(1 x 15= 15, and 5 x 1= 5), \frac{15}{5}

If you need/want to reduce it, divide both numbers by 5. Leaving you with the simplified answer of \frac{3}{1} or 3. Either answer works. :)

If you have any questions, just comment them down below :)
4 0
3 years ago
Read 2 more answers
Could someone pkease help. i am not sure if i have the correct answer, thanks
Mama L [17]
I believe you are correct keep it up
5 0
3 years ago
Other questions:
  • The company also discovers that it costs $15.50 to produce 3 camera cases, $23.50 to produce 7 camer cases, and $56 to produce 1
    11·1 answer
  • BRAINLIEST PLEASE FIND THE AREA
    9·2 answers
  • Find the unit price rounded to the nearest cent: 5.8 lbs for $4.89.
    11·1 answer
  • Expand: In (4a)^3<br> - 3 In 4 + In a<br> - 3 In 4 - 3 In a<br> - 3 In 4 + 3 In a
    14·1 answer
  • Factorise <br> 400x^2-49y^2
    15·2 answers
  • What is 3/5 as a simplified decimal
    12·2 answers
  • What’s the correct answer for this?
    9·2 answers
  • What is the answers to
    11·1 answer
  • A football player attempts to kick a football across a field. The path of the football can be modeled by the function h(x) = − 1
    7·2 answers
  • Please help if you can
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!