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MrRa [10]
3 years ago
11

What is the value of the function at x=−2? y=−2 y = 0 y = 2 y = 3

Mathematics
2 answers:
Ksenya-84 [330]3 years ago
7 0
3 I really hope that helps
qaws [65]3 years ago
5 0

Answer:

3

Step-by-step explanation:

hope it is right and is helpful

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The price of a train ticket consists of an initial fee plus a constant fee per stop.
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Solve for x. <br><br> x = ___
Mila [183]

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Solve y=x^2+2 for x.A.B.C.D

Step-by-step explanation:

sorry lamo

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3 years ago
Mrs.bain earns 30,483 per year how money does she earn in one month my entire math grade depends on this one answer please help
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8 0
3 years ago
2(n+5)=-2 step by step plz
Elodia [21]

Answer:

n=-6

Step-by-step explanation:

2(n+5)=-2

distribute

2(n+5)

2xn 2x5

2n+10

2n+10=-2

subtract 10 from both sides

10-10=0

-2-10=-12

2n=-12

divide each side by 2

2n/2=n

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6 0
3 years ago
Marco is 8 years younger than his brother Paolo. If their product of their ages is 105, how old is Marco? plz help
Nina [5.8K]

Answer:

Marco's age is 7 years old

Step-by-step explanation:

Let

x ----> Marco's age

y ----> Paolo's age

we know that

x=y-8 ----> y=x+8 ----> equation A

xy=105 ----> equation B

substitute equation A in equation B

x(x+8)=105

x^2+8x-105=0

Solve the quadratic equation

The formula to solve a quadratic equation of the form

ax^{2} +bx+c=0

is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^2+8x-105=0

so

a=1\\b=8\\c=-105

substitute in the formula

x=\frac{-8(+/-)\sqrt{8^{2}-4(1)(-105)}} {2(1)}

x=\frac{-8(+/-)\sqrt{484}} {2}

x=\frac{-8(+/-)22} {2}

x=\frac{-8(+)22} {2}=7

x=\frac{-8(-)22} {2}=-15

Remember that the solution cannot be a negative number

so

The solution is x=7

therefore

Marco's age is 7 years old

4 0
3 years ago
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