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Dominik [7]
3 years ago
11

If u could answer this u would be magical

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
8 0

Answer:

12r^2        +r         -7

Step-by-step explanation:

9r^2 +4r -7 +3r^2 -3r

Combine like terms

9r^2 +3r^2 +4r -3r -7

12r^2        +r         -7

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Ranger says the expression is not in its simplest form. He thinks the two terms need to be combined. Is Ranger right that 8x − 2
ladessa [460]

Answer:

4(2x - 5)

Step-by-step explanation:

Rewrite "20" as 4 * 5

Rewrite "8" as 4 * 2

=4 * 2x - 4 * 5

Factor out common term "4"

=4(2x - 5) <------ Your answer.

5 0
3 years ago
Read 2 more answers
3 1/4 × 4<br><br>I really need help for my extra credit homework
FromTheMoon [43]
13 because 1/4 times 4 is 4/4 with makes is a 1
And 3 times 4 is 12
1+12=13.
6 0
3 years ago
If a is an integer, prove that (14a + 3, 21a + 4) = 1.
Firdavs [7]

Answer:

(14a+3, 21+4) = 1

Step-by-step explanation:

We are going to use the Euclidean Algorithm to prove that these two integers have a gcd of 1.

gcd (14a + 3, 21a + 4) = gcd (14a+3, 7a + 1) = gcd (1, 7a+1) = 1

Therefore,

(14a + 3, 21a + 4) = 1

8 0
3 years ago
A rectangle has a length of 3x-5 and a width of 2x+9.
Montano1993 [528]

Step-by-step explanation:

l = 3x - 5

w = 2x + 9

perimeter = 2l + 2w = 2(3x - 5) + 2(2x + 9) =

= 6x - 10 + 4x + 18 = 10x + 8

area = l×w = (3x - 5)(2x + 9) = 6x² + 27x - 10x - 45 =

= 6x² + 17x - 45

8 0
3 years ago
−4(m+6)=−8 plz answer
dangina [55]

Answer:Divide both sides by the numeric factor on the left side, then solve.

m

=

−

4

Step-by-step explanation:

5 0
3 years ago
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