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musickatia [10]
3 years ago
11

can someone help me solve this multiplying polynomial question? it would really help, the screenshot is attached (:

Mathematics
1 answer:
Korvikt [17]3 years ago
3 0

Answer:

-20x³ + 0x² + 15x - 20

Step-by-step explanation:

I would have said it the other way.

"Multiply each term in the top row by -5."

 4x³ +  0x   -  3x +  4

<u>×(-5</u>)  <u>×(-5</u>)  <u>×(-5)</u>  <u>×(-5) </u>

-20x³ + 0x² + 15x -20

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OK so basically when converting 2 meters per second to kilometers per hour you will get 7.2 kilometers per hour. OK so times that by 4 and you will get 28.8 kilometers in 4 hours.
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3 years ago
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The sum of the measures of two complementary angles is 90°. If one angle measures 24° more than twice the measure of the​ other,
geniusboy [140]
X + y = 90

Let's make 'x' the bigger angle and 'y' the smaller.
X is 24 more than twice y.
x = 24 + 2y

Now plug that into the x of the first equation.
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Combine like terms.
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3 years ago
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KonstantinChe [14]

Step-by-step explanation:

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4 0
2 years ago
A farmer plows a corn field in the shape of a rectangle that has an area of 15840 square yards if the length of the field is 132
igomit [66]

Answer:

<u>Width= 120</u>

<u />

Step-by-step explanation:

We know that <u>L*W= A</u>

So lets put in the variables we know into the equation.

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132 * W= 15840

All we need to do is <u>divide 15840 by 132</u>

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136 divided by 4 = 34
136 - 34 = 102
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3 years ago
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