2 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]2 years ago

8 0

Answer:

Step-by-step explanation-3:

kondor19780726 [428]2 years ago

4 0

Answer:

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

Step-by-step explanation:

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I'm lost with this problem please help. Write answers as a fractions

aleksandrvk [35]

Answer: 8/3 and -9/4

Step-by-step explanation:

1. $\frac{2^{3}}{3} = \frac{2 * 2 * 2}{3} = \frac{8}{3}$

2. In this problem, when raising a whole fraction to a power, you must both raise the numerator and denominator to that power.

$-(\frac{3}{2})^2 = -(\frac{3^2}{2^2}) = -(\frac{9}{4}) = -\frac{9}{4}$

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2 years ago

Read 2 more answers

This table shows values that represent an exponential function.what is the average rate of change for this function for the inte

Archy [21]

9514 1404 393

Answer:

-4

Step-by-step explanation:

The average rate of change is given by ...

m = (y2 -y1)/(x2 -x1)

m = (-10 -(-2))/(3 -1) = -8/2 = -4

The average rate of change on the interval [1, 3] is -4.

6 0

2 years ago

Invent a data set with five numbers that has a mean of 10 and a median of 12.

Paraphin [41]

Answer:

7,7,12,12,12

Step-by-step explanation:

7+7+12+12+12=50/5=10=Mean

Median=12

4 0

2 years ago

2) -4(3n + 6) + 4 = -104<br> A) {3} B) {-1},<br> C) (7) D) {-12}

Misha Larkins [42]

Answer is C 7 D -12 for this question

8 0

3 years ago

620,000 rounded to the ten thousand

Trava [24]

Youre answer would be <span> 620,000 hope this helps!!!</span>

7 0

3 years ago