3 years ago

Given the vertex (2,9) and the foci (5,9), what is the equation of the directrix

Mathematics

1 answer:

Gennadij [26K]3 years ago

6 0

Answer:

x = -1

Step-by-step explanation:

The vertex is halfway between the focus and the directrix.

So here the directrix is a vertical line to the left of the vertex and passing through the point (2-3, 9) = (-1, 9)

It is x = -1.

You might be interested in

HURRY ILL MARK BRAINLIEST

Natasha_Volkova [10]

Answer:

I think c and d but I might be wrong

3 0

4 years ago

Luisa deposits $44.60 to her bank account on Tuesday morning. on Wednesday, she withdraws $66.30 on Thursday, she wildew $30 Whi

DochEvi [55]

Answer:

The answer is D- $- 51.70

6 0

3 years ago

1. You buy 3 pounds of organic apples for $7.50. The graph shows the price of regular apples.

aleksklad [387]

Answer:

Answer is C). I am 200% sure

7 0

4 years ago

Read 2 more answers

0.5+(-3/4)+0.25-(-4/5)

earnstyle [38]

Answer:

th first one

Step-by-step explanationor fully:

5 0

3 years ago

onsider the equation 0.5 times e4z =13 solve the equation for z. express the solution as a logarithm in base e

olga_2 [115]

Answer:

$z=\frac{ln(26)}{4}$

Step-by-step explanation:

The given equation is:

$0.5\,e^{4z}=13$

so, we first isolate the exponential form that contains the unknown "z" in the exponent, by dividing both sides by 0.5:

$0.5\,e^{4z}=13\\e^{4z}=\frac{13}{0.5}\\e^{4z}=26$

Now we bring the exponent down by applying the natural log function on both sides, and then solve for "z":

$e^{4z}=26\\ln(e^{4z})=ln(26)\\4\,z=ln(26)\\z=\frac{ln(26)}{4}$

5 0

4 years ago