3 years ago

Write the equation for a parabola with a focus at (9,0) and a directrix at y = -4.

Mathematics

2 answers:

Alika [10]3 years ago

8 0

Answer:

Step-by-step explanation-3:

kondor19780726 [428]3 years ago

4 0

Answer:

(x-9)^2/8 -2 is the correct answer.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

12*5=60

and sense it is a triangle you divide by 2 and get 30

<h3>30-12-5=13</h3><h3>this is what I think</h3>

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Calculate the speed for a car that went a distance of 125<br> kilometers in 2 hours time.

IrinaVladis [17]

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3 years ago

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3 years ago

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3 years ago

Read 2 more answers

Find the 75th term of the arithmetic sequence -1, 15, 31, ...−1,15,31,...

Readme [11.4K]

Answer:

1183

Step-by-step explanation:

Common difference:

d = 31 - 15 = 16

nth term:

$a_n = a_1 + (n - 1)d$

Here, $a_1 = -1$

$a_{75} = -1 + (75 - 1)(16)$

$a_{75} = 1183$

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3 years ago