3 years ago

Factor the expression x^4+6x-7 completely

Mathematics

1 answer:

melisa1 [442]3 years ago

5 0

(x-1)(x^3+x^2+x+7) is your answer.

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A rectangle whose perimeter is 110 feet. The length is 4 times as long as the width. Find the length and the width.

madreJ [45]

Set up a system of equations.
l=4w
2l+2w=110

Substitute l in to the second equation.
2(4w)+2w=110
8w+2w=110
10w=110
w=11

Substitute w back into the first equation.
l=4(11)=44

So, the length is 44 feet and the width is 11 feet.

Hope this helped!

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3 years ago

Jacob traveled 171 miles in 3.8 hours. He wants to know how many miles he traveled in one hour, so he set up this problem:

Makovka662 [10]

The answer is 45

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Pavlova-9 [17]

$3\log_5(x^2+9)-6=0$
$3\log_5(x^2+9)=6$
$\log_5(x^2+9)=2$
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$x^2+9=25$
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$x=\pm\sqrt{16}$
$x=\pm4$

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3 years ago

Use the scale factor to find the area of the enlarged figure. Explain your steps.

wariber [46]

Well if you divide 25.6 by 8 and then multiply four by that answer then you have the answer for a, so 4 times 3.2=12.8 , and then you would multiply 25.6 and 12.8 which is 327.68

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mr. wilson paid $45 for honey. this amount includes a tax of 8%. what was the cost of the honey before tax?

neonofarm [45]

Answer:

$3.60

Step-by-step explanation:

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3 years ago

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