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
Evgen [1.6K]
3 years ago
9

Factor Completely. 30r^2 + 30r + 75.

Mathematics
1 answer:
kari74 [83]3 years ago
6 0

Answer:

15(2r^2+2r+5)

Step-by-step explanation:

I'm more of a guess and check type of person, but 15 x 2r^2 = 30r^2, 15 x 2r = 30r, and 15 x 5 = 75

You might be interested in
In each of the following equations, what is
timama [110]

The graph will cross at the coordinates (-2, 9)

<h3>How to solve equations?</h3>

y = 3x + 15

y = 3 - 3x

y = 3x + 15

Hence,

when x = 2

y = 3(2) + 15 = 21

when x = 0

y = 3(0) + 15 = 15

y = 3 - 3x

when x = 2

y = 3 - 3(2)

y = 3 - 6

y = -3

when x = 0

y = 3 - 3(0)

y = 3

Therefore, let's check if the equation will cross.

y = 3x + 15

y = 3 - 3x

using substitution,

3 - 3x = 3x + 15

3  - 15 = 3x + 3x

- 12 = 6x

x = -12 / 6

x = -2

y = 3 - 3(-2)

y = 3 + 6

y = 9

Therefore, the graph will cross at the coordinates (-2, 9)

learn more on equations here: brainly.com/question/19297665

#SPJ1

8 0
2 years ago
In rectangle PQRS, PR = 18x – 28 and QS = x + 380. Find the value of x and the length of each diagonal.
chubhunter [2.5K]

Answer:

x = 24, PR = 404, QS = 404

Step-by-step explanation:

PR and QS are both diagonals of the rectangle. The diagonals of a rectangle bisect each other and are of equal length. Thus, we can say:

PR = QS

18x - 28 = x + 380

Solving for x, we get:

18x - x = 380 + 28

17x = 408

x = 408/17

x = 24

Thus, PR = 18(24) - 28 = 404  and  QS = 24 + 380 = 404

Third choice is right.

7 0
3 years ago
At 8:00, the temperature was -6°. Three hours later, the temperature dropped 13°. What is the temperature at 11:00?
AysviL [449]

Answer:

-19 degrees

Step-by-step explanation:

13+6=19

you would need to add the negative since it said dropped in temperature and the temperature was already negative.

3 0
3 years ago
Radius of a circular ground is 21m. Find.
trapecia [35]

The circumference of a circle of radius r is

C=2\pi r

So, in your case, the circumference is

C=2\cdot \pi \cdot 21 = 42\pi

The circumference is actually the length of the "perimeter", so the answer to questions 1 and 2 looks the same actually

6 0
3 years ago
Please help IM a NOT opErAted tO do THIs
stealth61 [152]

I have absolutely no idea goodluck with that

Now the reasoning of me not knowing is because my brain capacity is very low im just tryna get points I hope you find out the answer to that question good day sir

8 0
3 years ago
Read 2 more answers
Other questions:
  • Kengi buys 3 yds of fabric for $7.47 then he realizes that he needs 2 more yds. How much will the extra fabric cost?
    14·2 answers
  • What basic multiplication fact can help you divide 18÷3?
    10·2 answers
  • On a map, the scale shown is 1 inch: 20 miles. If a city is 900 square miles, what is the area of the city on the map?
    6·1 answer
  • Is 4/16 equivalent to 3/5
    7·1 answer
  • If x and y vary inversely, and X=3 when y=16 . Find y when x=6
    5·1 answer
  • Hellpp mee plzzz anyonee
    10·1 answer
  • Select the appropriate property of equality for the statement. If a = b, then a + c = b + c.
    11·1 answer
  • 3) The perimeter of a triangle is 28x-7. 2 of the sides are 5X-3 and 12x+8. What is the third
    11·1 answer
  • Write the equation of the line with y-intercept 8 and x-intercept 4.
    5·2 answers
  • 1. D=5.9 ft.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!