2 years ago

Using the equation y^2=-5/4(x-2), find the equation of the directrix

Mathematics

1 answer:

kumpel [21]2 years ago

3 0

Answer:

Step-by-step explanation:

since its a horizontal parabola opening to the right we use a formula for the directrix

x=h-p 4p=5/4 p=5

X= -3 v(h,k)=(2,0)

You might be interested in

Find an equation to the line tangent to y = 5 + |x – 2| at the coordinate (2, 5) pls answer

myrzilka [38]

Answer:

Step-by-step explanation:

Finding an equation of a tangent line to that function requires that we find the derivative of the function at that point. Since this is an absolute value function with its cusp at (2, 5), the function is not differentiable here.

3 0

3 years ago

A lawn with an area of 300 square feet needs 1/2 pound of grass seed. How many pounds of grass seed are needed for a lawn that i

Anna [14]

60x20=1200
1200/300=4
4x1/2=4/2=2 pounds of grass seed

8 0

3 years ago

Perform the operation. Enter your answer in scientific notation.<br> 9 x 10^*8 - 5.3 x 10^*8 =

PilotLPTM [1.2K]

Answer:

3.7x10^8

Step-by-step explanation:

did it on calc

3 0

3 years ago

you correctly answered 2/3 of the questions on your history exam there were 75 questions on the exam how many questions did you

GaryK [48]

2/3 of 75 is 2/3 times 75, which is 50. Hope this helps. :D

8 0

3 years ago

A) Find the distance of line segment PR. Round answer to the nearest tenth. B) Find the distance around the park (perimeter).

juin [17]

Answer:

A. $PR = 80.6 yd$

B. Perimeter = 190.6 yd

Step-by-step explanation:

A. Distance between P(10, 50) and R(80, 10):

$PR = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$

$PR = \sqrt{(80 - 10)^2 + (10 - 50)^2}$

$PR = \sqrt{(70)^2 + (-40)^2}$

$PR = \sqrt{4,900 + 1,600}$

$PR = \sqrt{6,500}$

$PR = 80.6 yd$ (nearest tenth)

B. Distance around the park = Perimeter = PR + PQ + QR

PR = 80.6 yd

PQ = |50 - 10| = 40 yd

QR = |80 - 10| = 70 yd

Perimeter = 80.6 + 40 + 70

Perimeter = 190.6 yd

7 0

3 years ago