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
expeople1 [14]
3 years ago
5

The graph below shows the value of Edna's profits f(t), in dollars, after t months:

Mathematics
2 answers:
umka21 [38]3 years ago
6 0
Since we know that the graph of our quadratic function has x-intercepts at (6,0) and (18,0), x=6 and x=18 are the zeroes of our quadratic. To find our quadratic we are going to factor each zero backwards and multiply them:
x=6
x-6=0
x=18
x-18=0

(x-6)(x-18)=x^{2}-6x-18x+108
=x^{2}-24x+108

Now that we have our quadratic function, we are going to use the average formula: m= \frac{f(9)-f(3)}{9-3}
where
f(9) is the function evaluated at  the <span>9th month
</span>f(3) is the function evaluated at the 3rd month 

m= \frac{f(9)-f(3)}{9-3}
m= \frac{[9^{2}-24(9)+108]-[3^{2}-24(3)+108]}{9-3}
m= \frac{-27-45}{6}
m= \frac{-72}{6}
m=-12

We can conclude that the closest approximate average rate of change for Edna's profits from the 3rd month to the 9th month is: <span>B. −11.63 dollars per month.</span>

Romashka-Z-Leto [24]3 years ago
4 0

I got -11, so I probably did have a bit of math errors, so I'm pretty sure then that is is -11.63

You might be interested in
The temperature yesterday was 11 degrees colder than it was today if she represents the temperature today what expression repres
damaskus [11]
68-11=57 (Yesterday's temperature)
That's the expression. ^^ And yesterday's temperature is 57 because, 68 degrees (Today's temperature) minus 11 degrees (how many degrees colder it was yesterday) is equal to 57 degrees (Yesterday's Temperature).

6 0
3 years ago
13. Find the values of x and y in the diagram below.
Umnica [9.8K]

Answer:

x = 2

y = 4

Step-by-step explanation:

Let's start with the 7 in the middle. Subtract the 1 on its upper left to get 6.

Add the 3 on its lower left to get 10.

so, 3 - x = 1. x = 2

17 - y = 13. y = 4

8 0
2 years ago
HELP ME ASAP NEED HELp
MrRa [10]

Answer: W=20 and L=55

Step-by-step explanation:

2(3w-5)+2(w)=150

6w-10+2w=150

8w-10=150

8w=160

W=20

L= 3(20)-5

=60-5

=55

6 0
1 year ago
10. f(x) = -x + 2<br> Domain:<br> Range:<br> x-intercept:<br> y-intercept:
Gnesinka [82]
Domain & range both zero. X intercept: 2,0. y-intercept: (0, 2)
5 0
3 years ago
You are testing fertilizers on plants. One plant is 11 cm tall and growing at a rate of 2 cm/day. Write an equation that can be
Vlada [557]
I would consider for you to use Socratic
4 0
3 years ago
Other questions:
  • Please help.. part a &amp; b
    13·1 answer
  • A puppy named Bruno started out at 4 pounds and gained 1 pound every month. At how many months did Bruno weigh 10 pounds?
    14·2 answers
  • 8 to the -2nd power times a to the 7th power
    5·1 answer
  • Which of the following best explains why cos2pi/3 is not equal to cos5pi/3?
    7·2 answers
  • A hose fills a hot tub at a rate of 3.13 gallons per minute. How many hours will it take to fill a 255-gallon hot tub?
    14·1 answer
  • If a translation of T-3,-8(x, y) is applied to square ABCD,<br> what is the y-coordinate of B?
    5·1 answer
  • The ratio of orange juice to pinapple jucie in tropical treat punch is 4 to 3. Bill has 64oz of orange juice. How many pineapple
    14·1 answer
  • Can someone please tell me whats the best way to do good on a state test
    12·1 answer
  • Evaluate the following expression 2(1,0) -3(2,-1)<br> A-(2,3)<br> B-(-4,3)<br> C-(-3,-2)<br> D-(2,3)
    15·2 answers
  • 8x+5 <br> 3x+8<br> Find the measurement of x!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!