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stealth61 [152]
3 years ago
10

Factor completely x2 + 20x − 36. (1 point)

Mathematics
1 answer:
Serggg [28]3 years ago
4 0

Consider the form x^2+bx+c. Find a pair of integers whose product is c and whose sum is b. In this case, whose product is 36 and whose sum is 20.

2, 18

Write the factored form using these integers.

(x+2)(x+18)

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Li and Jen went shopping. • Li bought 5 pairs of earrings and 1 necklace for a total of $63. • Jen bought 1 pair of earrings and
irina1246 [14]

Answer:

<h2>Earing is $13</h2><h2>Necklace is $10</h2>

Step-by-step explanation:

Firstly, let us express the cost

for Li

5e+n=63---------1

for Jen

e+2n=36---------2

the system of equations are

5e+n=63----1

e+2n=36-----2

Multiply 1 by 1 and 2 by 5 to eliminate e we have

 5e+n=63

 5e+10n=180

-0-9n=-117

9n=117

Divide both sides by 9 we have

n=117/9

n=13

put n=13 in eqn 1 we have

e+2(13)=36

e+26=36

e=36-26

e=10

Earing is $13

Necklace is $10

5 0
4 years ago
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Soloha48 [4]
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3 years ago
What is the length of the hypotenuse?
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Answer:

Hello! answer: 85

Step-by-step explanation:

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Step-by-step explanation:

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