What is the focal length of the parabola whose graph is shown? focus: (-3, 2.6) and directrix: (-0.6)

Answers

Answer 1
Answer: P=focal legnth is the distance from the focus to the vertex, which also is the disance from the directix to the vertex

therefor
distance from directix to focus=2 times focal legnth

find distance
horizontal distance
from y=-0.6 to y=2.6, that is distance ot 3 units
3/2=1.5
focal distance=1.5

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A customers services representative earns $13 an hour and he works 24 hours a week . What is his weekly wage

Answers

The Answer is $312

Your welcome


well , this is common sense . multiply 24 hrs * 13$ and wallah magic you end up with 312$ a week.

Write the equation in function form4x + y = -10
(I have 11 more of these other kinds of questions) :(

Answers

Simply isolate y by subtracting the 4x to the other side: y=-4x-10
I may be wrong but im pretty sure function form is: f(x)= 4x-10

Given the equation 4x + 2y = 9, which equation below would cause an inconsistent-independent system? (2 points)

Answers

Answer: 2x+y=-6

Step-by-step explanation:

A wise man once said, "500 reduced by 4 times my age is 204." What is his age? ( This question is pulled right from the book and the teacher expects me to show steps...please answer with work Thanks.)

Answers

Here's my work:(don't copy the side explanations into yours)

Which one is smaller than 2500ml and 25ml

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25 ml is smaller than 2500 ml

Write the equation of a circle with a center at (0, 8) and a radius of 9.

Answers

Answer:

x^2 + (y-8)^2= 81

Step-by-step explanation:

the equation of a circle with a center at (0, 8) and a radius of 9.

To frame the equation of the circle we use center radius form of equation

(x-h)^2 + (y-k)^2= r^2

Where (h,k) is the center and 'r' is the radius

Given center is (0,8) and radius = 9

h = 0 , k= 8 and r= 9

Plug in all the values

(x-h)^2 + (y-k)^2= r^2

(x-0)^2 + (y-8)^2= 9^2

x^2 + (y-8)^2= 81