1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Hitman42 [59]
2 years ago
13

Can somebody please help me and explain a bit, it's for a test grade :(

Mathematics
1 answer:
bekas [8.4K]2 years ago
5 0

Answer:

Step-by-step explanation:

All you have to do is

85=5(x)

You might be interested in
Literally pls help me like literally pls i need help pls
jarptica [38.1K]

Answer:

2\16

Step-by-step explanation:

3 0
3 years ago
What is the equation of the quadratic graph with a focus of (3, 1) and a directrix of y = 5?
telo118 [61]

Answer:

f(x)=-\frac{1}{8}(x-3)^2+3

Step-by-step explanation:

We want to find the equation of the parabola with a focus of (3,1) and directrix y=5.

Considering the directrix, the quadratic graph must open downwards.


The equation of this parabola is given by the formula,

(x-h)^2=4p(y-k), where (h,k) is the vertex of the parabola.


The axis of this parabola meets the directrix at (3,5).

Since the vertex is the midpoint of the focus and the point of intersection of the axis of the parabola and the directrix,


h=\frac{3+3}{2}=3 and k=\frac{5+1}{2}=3.


The equation of the parabola now becomes,


(x-3)^2=4p(y-3).


Also |p| is the distance between the vertex and the directrix.


|p|=2


This implies that p=-2\:or\:2.


Since the parabola turns downwards,


p=-2.



Our equation now becomes,


(x-3)^2=4(-2)(y-3).


(x-3)^2=-8(y-3).


We make y the subject to get,

y=-\frac{1}{8}(x-3)^2+3).


This is the same as

f(x)=-\frac{1}{8}(x-3)^2+3).









4 0
3 years ago
Which of the following could be true if y ≤ -75?
Charra [1.4K]

Answer:-74

Step-by-step explanation: When you are in the megatives, less is more! So -74 is actually greater then -75

6 0
3 years ago
Acetaminophen is a common pain reliever and fever reducer. Here is a graph showing the amount of acetaminophen, in milligrams, i
andrew11 [14]

Answer:

I don't know 1

2. 3/4

3. y= 1000(0.75)^x

Step-by-step explanation:

6 0
3 years ago
Is -15/2 a irrational number
Eduardwww [97]
No because it is equal to -7.5 I think
4 0
3 years ago
Read 2 more answers
Other questions:
  • How much warmer is it when the temperature is 17 degrees farenheit then when it is negative 11 degrees​
    5·1 answer
  • An appliance dealer sold 40 tv sets during a special sale. Some of the sets were black-and - white models each selling at $119.
    15·1 answer
  • Given f(x) = 17-X^2, <br> what is the average rate of change in f(x) over the interval [1, 5]?
    5·1 answer
  • The wheels of a monster truck are 66 inches tall. Find the distance the monster truck travels when the tires make one 360-degree
    6·1 answer
  • What is the area of 1 section of this circle?
    10·1 answer
  • What’s the standard form for 1,000,000+80,000+30+3
    14·2 answers
  • Plz help this is due today NO LINKS OR GROSS PICTURES OR I Will REPORT And please show work
    12·1 answer
  • Graph the function.<br> h(x) = x^2 + 2x
    11·1 answer
  • 8r+9r-11r+7r what is the answer I have to turn it in today!!
    5·2 answers
  • URGENT!! <br><br> Please divide this polynomial
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!