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Ivahew [28]
3 years ago
7

What are the coordinates of the vertex of y=x²+4x+3?​

Mathematics
1 answer:
Travka [436]3 years ago
4 0

Answer:

(-2, -1).

Step-by-step explanation:

y = x² + 4x + 3

Completing the square:

y = (x + 4/2)^2 - (4/2)^2 + 3

y = (x + 2)^2 - 4 + 3

y = (x + 2)^2 - 1.

This is vertex form and the coordinates of the vertex are (-2, -1).

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Are -77x +11y = 77 and y-7x+7=0 parellel
dem82 [27]

Answer:

no

Step-by-step explanation:

because they have different gradients

4 0
2 years ago
I'll give u a kith pls help
lord [1]

ANSWER:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

(−2,−16)

Equation Form:

x= −2, y= −16

8 0
3 years ago
Read 2 more answers
g Jack is polling New Yorkers to determine what proportion of them want to legalize recreational marijuana. How many New Yorkers
wolverine [178]

Answer:

1006

Step-by-step explanation:

Take proportion, p = 62%

n = (Z² * pq) / M.E²

Margin error = 0.03

p = 62% = 0.62

q = 1 - p = 1 - 0.62 = 0.38

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n = (1.96² * (0.62*0.38)) / 0.03²

n = 0.90508096 / 0.0009

n = 1005.6455

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Sample size = 1006

5 0
2 years ago
There are 5 boys for every 6 girls.How many boys would there be if there were 36 girls?
dimulka [17.4K]

Answer:

30

Step-by-step explanation:

If there are 5 for every 6, then you divide 36 by 6 and then you get 6

Once you get that, multiply 5 by 6 and get 30

4 0
3 years ago
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Write an equation of the line that passes through (4,-6) and is parallel to the line y=-3x-9
murzikaleks [220]

Answer:

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y = 3x - 2

Step-by-step explanation:

Hope this helped you!

5 0
3 years ago
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