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Charra [1.4K]
3 years ago
5

a blacked-out traffic light should be treated the same as a ... A. YIELD sign B. STOP sign C. DO NOT ENTER sign D. yellow traffi

c light
Mathematics
1 answer:
motikmotik3 years ago
6 0
C. Do Not Enter sign.
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Solve the system of eqautions <br> y=x2-5x+7 , y=2x+1
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Answer:

Step-by-step explanation:

The system of equations is given as

y=x^2-5x+7 - - - - - - - - - - 1

y=2x+1 - - - - - - - - - - - - - - 2

We would equate equation 1 to equation 2, it becomes

x^2-5x+7 = 2x+1

x^2-5x+7- 2x - 1 = 0

x^2-5x+7- 2x - 1 = 0

x^2 - 5x - 2x + 7 - 1 = 0

x^2 - 7x + 6 = 0

We would use the factorization method of solving quadratic equations.

x^2 - 6x - x + 6 = 0

x(x - 6) - 1(x - 6)

(x - 6)(x - 1) = 0

x - 6 = 0 or x - 1 = 0

x = 6 or x = 1

Substituting both values of x into equation 2, it becomes

For x = 6,

y=2×6 + 1 = 12 + 1 = 13

y = 13

For x = 1,

y=2 × 1 +1 = 2 + 1 = 3

y = 3

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2 years ago
Mike purchased 1.35 pounds of steak for $13.50.
AlladinOne [14]

Answer:

y=10x

Step-by-step explanation:

it costs 10 dollars for one pound of steak.

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Please help what is the volume of the rectangular prism
77julia77 [94]

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Step-by-step explanation:

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