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nasty-shy [4]
3 years ago
9

I need help on the stared ones( I WILL MAKE YOU BRAINIEST)!

Mathematics
2 answers:
WINSTONCH [101]3 years ago
4 0

Answer:

Step-by-step explanation:

bottom left is 13a + 2b

bottom right is 15y - 6

jarptica [38.1K]3 years ago
4 0

Answer:

1) 13a + 2b

2) 15y² - 6

Step-by-step explanation:

3a + 2(b + 5a)

3a + 2b + 10a

13a + 2b

3y² + 3(4y² - 2)

3y² + 12y² - 6

15y² - 6

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F(x) = x - 5; translation 7 units right
Jet001 [13]

Answer:

f(x-7) =  x -12

Step-by-step explanation:

horizontal translation 7 units right: f(x-7)

f(x) = x - 5

f(x-7) = x-7 -5 = x -12

6 0
3 years ago
-onsider x + 4 = x + 8. What values could be substituted for x to make this a true
devlian [24]

Answer:

No because upon subtracting x on both sides you obtain a false equation of 4=8.

The problem:

What are x values that satisfy:

x+4=x+8?

Step-by-step explanation:

No number can be substituted into x+4=x+8 to make it true.

There is no number that you can find such that when you add 4 to it will give you the same as adding 8 to it.

Also if you subtract x on both sides you obtain the equation 4=8.

4=8 is not true so x+4=x+8 is never true for any x.

7 0
3 years ago
State the two quantities that are being compared in each rate. Then calculate the equivalent unit rate.
stealth61 [152]
101.25 dollars are being compared to 9 hours. The unit rate is 11.25 dollars
6 0
3 years ago
Which polynomials are prime? Check all that apply. 15x ^ 2 + 10x - 9x + 7 20x ^ 2 - 12x + 30x - 18 6x ^ 3 + 14x ^ 2 - 12x - 28 8
NARA [144]

Answer:

15x2+10x-9x+7

8x3+20x2+3x+12

11x4+4x2-6x2-16

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Eden needs an average of 92% on her quiz scores to earn the grade she wants in science class. Each quiz is worth 20 points.
Jlenok [28]

Answer:

19 points

Step-by-step explanation:

convert points to percents:

20 points = 100%

19 points = 95%

18 points = 90%

17 points = 85%

percent-wise, her average prior to another quiz is 92.5

so if she wants to keep to maintain that average she must get 18 1/2 points; if teacher doesn't award partial credit then she needs to get a full 19 points

5 0
3 years ago
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