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tester [92]
3 years ago
5

Which expression can be used to find the sum of the polynomials? (9 – 3x2) + (–8x2 + 4x + 5)

Mathematics
2 answers:
timama [110]3 years ago
8 0

Answer:

It may not be right but try D.

Step-by-step explanation:

neonofarm [45]3 years ago
6 0

Answer:

D is correct

Step-by-step explanation:

Took the test on edg 2020

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What is the anwser to 3(2t+5)=5t+25
Elena L [17]

3(2t+5)=5t+25

Multiply the bracket with 3

(3)(2t)(3)(5)=5t+25

6t+15=5t+25

Move 5t to the other side. Sign changes from +5t to -5t

6t-5t+15=5t-5t+25

6t-5t+15=25

Move +15 to the other side. Sign changes from +15 to -15

6t-5t+15-15=25-15

6t-5t=10

1t=10

divide by 1

1/1t=10/t

t=10

Answer: t=10

6 0
3 years ago
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jasenka [17]

Answer:

No, because the total will be $3.62

Step-by-step explanation:

When we substitute with 3 and 2 shown below

0.35(3)+0.99(2)+0.59 we get 3.62, which is greater than 3 dollars.

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8 0
2 years ago
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Please help meee! I will give brainleiest!
tester [92]

Answer:

64? I'm not sure but because if 1= girls (8 girls) and boys is 8 times more you do 8x8 I think sorry if I'm wrong

8 0
3 years ago
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Devon has $45 in his savings account. which equation can be used to determine how much devon needs to save in order to have $315
Georgia [21]
<span>He has 45 dollars. He needs 315 dollars in order for him to have 315 dollars he would to need to save what? Then take 315-45= 270 dollars. Therefore he would need to save 270 dollars.

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6 0
3 years ago
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Need help please don't know this
4vir4ik [10]

Answer:

  x = -3

Step-by-step explanation:

The graph is symmetrical about the vertical line through its vertex:

  x = -3

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2 years ago
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