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Alex73 [517]
3 years ago
6

This system has one solution what is the y coordinate of the solution y= -2x+4 y= x^2 +4x+13

Mathematics
1 answer:
prohojiy [21]3 years ago
8 0
Hello : the system is :
<span> y= -2x+4 ...(1)
y= x² +4x+13....(2)
x²+4x+13 = -2x+4
x²+6x+9=0
(x+3)² =0
x+3=0
x= -3 
subsct in (1) : y=-2(-3)+4 =10</span>
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Answer:

7/40 feet

Step-by-step explanation:

Solve using proportions:

\frac{25in}{35ft} =\frac{1/8 in}{?ft}

Find the scale factor by dividing the numerators 25 by 1/8.

25 ÷ 1/8 = 200   This is the common ratio

To get from the top left number to the top right number, you divide 25 by 200.

To get from the bottom left number to the bottom right number, you divide 35 by 200.

35 ÷ 200 = 0.175

1/8 of an inch represents 0.175 feet.

To find 0.175 in fraction form, reduce 35/200 to its lowest terms.

35/200 = 7/40

1/8 of an inch represents 7/40 feet.

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3 years ago
Jose earns $400 during the summer. He deposits it in an account that pays simple interest at a rate of 3% per year. Which equati
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Step-by-step explanation:

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Step-by-step explanation:

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The big triangle CAB has sides 6+8 and 20 + x. Add the 6 and 8 which is 14. Create a proportion and cross multiply, divide, then solve for x.

\frac{8}{20}=\frac{14}{20+x\\}\\\\8(20 + x) = 20(14)\\160 + 8x = 280\\160-160+8x=280-160\\8x=  120\\8x/8=120/8\\x=15

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2 years ago
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Sindrei [870]

Answer:

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