3 years ago

Solve the system of equations using the combined method 2x-5y=-3 8x-5y=33

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

7 0

(6,3)
i think this is correct

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The perimeter of a rectangle downtown courtyard is 174 feet. The width of the rectangle is twice the length. Find the length and

kirill [66]

Answer:

Step-by-step explanation:

L = Length

W = Width

W = 2L

2W + 2L = 174

2(2L) + 2L = 174

6L = 174

L = 29 ft

W = 2(29) = 58 ft

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3 years ago

Need help with this math question!!!!!!!!!

exis [7]

ANSWER

The vertex is (1,-3)

EXPLANATION

The given parabola has equation:

${y}^{2} + 6y + 8x + 1 = 0$

We group the variables to obtain:

${y}^{2} + 6y = - 8x - 1$

We complete the square to get,

${y}^{2} + 6y + {3}^{2} = - 8x - 1 + {3}^{2}$

${(y+ 3)}^{2} = - 8x +8$

${(y+ 3)}^{2} = - 8(x -1)$

The vertex is of the parabola is (1,-3)

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maxonik [38]

Answer:

= -180

Step-by-step explanation:

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3 years ago

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melisa1 [442]

Answer:

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Pleeeease help me! True or false

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False, since it we substitute x = 4 into the equation we get y = -4 + 3 = -1

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