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marshall27 [118]
3 years ago
12

If a=5x^2+3x-7 and b=-3x^2-7x+5 find b-a

Mathematics
1 answer:
uranmaximum [27]3 years ago
3 0

Answer:

-8x^2-10x+12

Step-by-step explanation:

first set up the problem:

(-3x^2-7x+5)-(5x^2+3x-7)

Since you are subtracting you need to distribute the (-) sign:

(-3x^2‐7x+5)(-5x^2-3x+7)

Now just combine like terms

-3x^2+(-5x^2= -8x^2

(-7x+(-3x= -10x

5+7= 12

set answer in standard form:

-8x^2-10x+12

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BlackZzzverrR [31]
-47=97 hopefully this helped u
7 0
3 years ago
100 points if you can answer this ​
horrorfan [7]

Answer:

x = 124°

Step-by-step explanation:

the sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

here n = 5 , then

sum = 180° × 3 = 540°

sum the given angles and equate to 540°

90° + 122° + 105° + 99°  x = 540° , that is

416° + x = 540° ( subtract 416° from both sides )

x = 124°

5 0
2 years ago
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What is the missing number?<br><br> 6,000 + 600 + <br> = 100,006,600
velikii [3]

Answer:

100,000,000

Step-by-step explanation:

6,000 + 600 + 100,000,000 = 100,006,600

5 0
2 years ago
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Christopher scored 7 more than two times the questions Mathew scored on the math test. If Christopher scored 87 on the math test
viktelen [127]

Answer:

40

Step-by-step explanation:

To solve this, we can create an equation that represents this situation. Since Christopher score 7 more than twice what Mathew scored, the equation will be:

C = 2M + 7

(Variables are representative of the first letter of each name)

Seeing as Christopher scored 87, we can put that into the equation and solve for M.

So, the equation will be:

87 = 2M + 7

Subtract 7 from both sides in order to isolate variable M on the right side.

80 = 2M

Now solve for M, which is 40 (divide both sides by 2).

7 0
3 years ago
The table shows the ticket sales for three days On which day(s) were the ticket sales grater than 50?
antiseptic1488 [7]

Hey Mate,

you can see the table . it clearly says that on Thursday number of tickets sold is 56 which is greater than 50

3 0
4 years ago
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