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2 years ago

The equation of a parabola is (y−3)2=20(x+1) .

2 answers:

6 0

2(y - 3) = 20(x - 1)
(h, k) = (1, 3)
(y - 3) = 10(x - 1)
4p = 10
p = $\frac{5}{2}$
x = h - p
x = 1 - $\frac{5}{2}$
x = - $\frac{3}{2}$
Hope that helped! If it's wrong, I'm sorry; I only learned about directrix today.

MrRa [10]2 years ago

4 0

Answer:

X=-6

Step-by-step explanation:

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Let f(x) = x2- 3x - 7. Find f(-3)

Alexxx [7]

F(x) = x^2 - 3x - 7
f(-3) = (-3)^ 2 - 3(-3) - 7
f(-3) = 9 + 9 - 7
f(-3) = 18 - 7
f(-3) = 11

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2 years ago

Is x-1 a factor of x^5+2x^2-1

vazorg [7]

Answer: i think no cuz f(1)=2 but i am not sure

Step-by-step explanation:

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2 years ago

Evaluate f(x) when x = -10

Sati [7]

So, when x = -10.

If you notice, -10 is NOT in the domain (the domain is (-3,13))

so, there is no solution.

3 0

2 years ago

Read 2 more answers

You can eat no more than 40 slices of pizza each week. If you have

Svet_ta [14]

Answer: 5.7 slices

Step-by-step explanation:

7x=40. x represents number of slices per day, 7 is because you eat pizza every day and there's 7 days in a week.

Divide both sides by 7:

7x/7 = 40/7

x= 5.7

4 0

2 years ago

PLEASE HELP, GIVING 55 POINTS IF YOU ANSWER (08.03/08.05 MC) A pair of equations is shown below: y = 3x − 5 y = 6x − 8 Part A: E

Andrew [12]

Answer:

A. (1, -2)

B. the lines intersect at the solution point: (1, -2).

Step-by-step explanation:

A. The equations can be solve by substitution by using the y-expression provided by one of them to substitute for y in the other.

This gives ...

3x -5 = 6x -8

Adding 8-3x to both sides, we get ...

3 = 3x

Dividing both sides by 3 gives ...

1 = x

Substituting this value into the first equation, we can find y:

y = 3(1) -5 = -2

The solution is (x, y) = (1, -2).

B. The lines intersect at the solution point, the point that satisfies both equations simultaneously. That point is (1, -2).

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2 years ago