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ladessa [460]
2 years ago
15

Write the equation for a parabola that has a vertex (2, -1) and a directrix of x = 5. The standard form for this parabola is (x

- h)* = 4p(y-k) (y- k) = 4p(x - 1) DONE​
Mathematics
2 answers:
Tom [10]2 years ago
7 0

Answer:

x=h-p

Step-by-step explanation:

bk

Dmitry [639]2 years ago
5 0

Answer:

Step-by-step explanation:

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Which critical value is appropriate for a​ 99% confidence level where nequals​17, sigma is​ unknown, and the population appears
My name is Ann [436]

Answer:

t Subscript alpha divided by 2 = 2.921

Step-by-step explanation:

With sample sizes lower than 30, we use the t-test.

Otherwise, we use the z-test.

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The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 17 - 1 = 16

Now, we have to find a value of T, which is found looking at the t table, with 16 degrees of freedom(y-axis) and a confidence level of 0.99(t_{1 - (\frac{1-0.99}{2}}) = 0.995). So we have T = 2.921

So the correct answer is:

t Subscript alpha divided by 2 = 2.921

6 0
3 years ago
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Wich state is the farthest state in the southwest region​
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It cost Evan $17.70 to send 177 text messages. How many text messages did he send if he spent $19.10
Leviafan [203]

Answer:

191

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First just take 177/17.70= 10

all you have to do is multiply by 10

so

19.10= 191

3 0
3 years ago
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