4 years ago

Factor the trinomial: 2x^2+7x+5

Mathematics

1 answer:

xeze [42]4 years ago

5 0

Answer:
(2x+5) (x+1)

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Solve. 5 = –(–z + 3)<br> a. –8<br> b. 8<br> c. –2<br> d. 2

gulaghasi [49]

-(-z + 3) equals z - 3
5 = z - 3
z = 8

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Lady_Fox [76]

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3 years ago

Helen's house is located on a rectangular lot that is1 1-8 miles by 9/10 mile.Estimate the distance around the lot

klemol [59]

Answer: The distance around the lot is given by

$4\frac{1}{20}\ miles$

Step-by-step explanation:

Since we have given that

Length of rectangular lot is given by

$1\frac{1}{8}\\\\=\frac{9}{8}\ miles$

Width of rectangular lot is given by

$\frac{9}{10}\ mile$

We need to find the distance around the lot.

As we know the formula for "Perimeter of rectangle":

$Perimeter=2(Length+Width)\\\\Perimeter=2(\frac{9}{8}+\frac{9}{10})\\\\Perimeter=2(\frac{45+36}{40})\\\\Perimeter=2\times \frac{81}{40}\\\\Perimeter=\frac{81}{20}\\\\Perimeter=4\frac{1}{20}\ miles$

Hence, the distance around the lot is given by

$4\frac{1}{20}\ miles$

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3 years ago

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Alecsey [184]

Answer:

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Step-by-step explanation:

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The difference of 4 times a number and 7 is 21. Find the number.

USPshnik [31]

Answer:

The number is 7.

Step-by-step explanation:

4n - 7 = 21 Add 7 on both sides

4n = 28 Isolate the variable by dividing 4 on both sides

n= 7

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