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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

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Subject: Finding Range Using a Graph
grigory [225]

Answer:

4.7

Step-by-step explanation:

The red I think is hinting to the x.

5 0
4 years ago
A tennis court is 36 feet long and 78 feet wide. How many people could fit on just the tennis court? (Remember the expected floo
murzikaleks [220]

Answer:

The answer to your question is:  1123 persons

Step-by-step explanation:

long = 36 ft

wide = 78 ft

Area = long x wide

Area = 36 x 78          substitution

        = 2808 ft²

a standing person occupies 2.5 ft²

# of standing person in the tennis court = 2808 / 2.5

                                                                   = 1123.2

4 0
4 years ago
(2,3), (-1,5), (0,-1), (3,5), (5,0) <br> What’s the domain?
Liono4ka [1.6K]

let's recall that the domain of a set is always the list of all x-coordinates in each pair.

\bf \stackrel{\large Domain\qquad \{2,-1,0,3,5\}}{(\stackrel{\downarrow }{2}~~,~~3),(\stackrel{\downarrow }{-1}~~,~~5),(\stackrel{\downarrow }{0}~~,~~-1),(\stackrel{\downarrow }{3}~~,~~5),(\stackrel{\downarrow }{5}~~,~~0)}

3 0
4 years ago
A system of equations has 1 solution. If 4x - y = 5 is one of the equations, which could be the other equation?
Nuetrik [128]

answer :

A. y = – 4x + 5

Step-by-step explanation:

make y = 4x-5 equal to each of the answer choices and see if you get an answer

STEPS:

1.

make 4x - y = 5 into a y= equation

4x - y = 5 is  y = 4x-5

2.

then make y = 4x-5 equal to each of the answer choices and see if you get an answer

A.

4x-5 = -4x+5

8x = 10

x = 10/8 = 5/4

yes, it has one solution

its also an intersecting line because

one line has 4x and the other has -4x

4x and -4x are slopes and opposite signs so

the lines are intersecting

B.

4x-5 = 4x-5

since they are the same on both sides of the equal sign they have

infinite solutions

they are also both the same line

C.

2y=8x-10 when simplified is y=4x-5

so its just like choice B

they are also both the same line

4x-5 = 4x-5 which is

0 = 0

since they are the same on both sides of the equal sign

infinite solutions

they are also both the same line

D.

-2y=-8x-10 when simplified is y=4x+5

4x-5 = 4x+5 when you work it out you get the answer

0 = 5

since when you solve the equation and get 0 = 5

that means its there is no solution

its also parallel line because both lines have 4x as a slope

brainly.com/question/12706348

8 0
2 years ago
Of 60 students, 24 students have a pet.
love history [14]

Answer:

24/60 is equal to 6/15 which is equal to 2/5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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