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Alex787 [66]
2 years ago
7

The first equation in the following system gives the company's cost of making x purses. The second equation gives the company's

income for selling x purses.
y = negative 0.01 (x minus 500) squared + 4,489. y = 20 x

You used substitution to obtain the equation

0 = -0.01x2-10x+1,989 from the system.

What are the solutions to the system of equations?

(-23,400, 3,400) and (-1,170,170)

(-1,170, -23,400) and (170, 3,400)

(274, 726) and (5,480, 14,520)

(274, 5,480) and (726, 14,520)
Mathematics
1 answer:
Paraphin [41]2 years ago
3 0

Step-by-step explanation:

17389+23589=2469

56793+4569=15992

becoms54566+2368x

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What is the probability that Jim, Bruce, Valerie, and Simon are selected in that order
irinina [24]

The first person can be chosen in 4 different ways.

The second person can be chosen in 3 different ways.

The third person can be chosen in 2 ways

The last person can only be chosen in 1 way.

4 * 3 * 2 * 1

there are 24 different ways that this can be done.

There is only 1 correct order.

The answer is 1/24 ways. 1/24 = 0.04166666

7 0
3 years ago
Help??? And sorry for the pencil marks
Vanyuwa [196]

Answer:

21.98

Step-by-step explanation:

first you think about the equation for perimeter. P=d(pi)

then you multiply your radius by 2 and that is 7 so you multiply 7 by pi (3.14)

that is the number of feet. so then you multiply your number of feet by your cost per foot and you get 21.98

4 0
3 years ago
Please help if you can.....................
Oksana_A [137]

The sum of everything is 720 degrees, because of the six sides in this figure.

We sum all angles and get 595

720 - 595 = 125

The answer is 125 degrees

3 0
3 years ago
PLEASE HELP ASAP! I have reposted this 2 times and no one will help me.:( please answer all 4 thank you so much!! i need this do
erik [133]

Answer:

5. DE

6. 3 cm

7. 20 in

8. ΔDCF

5 0
3 years ago
The function h(t)=-4.87t^2+18.75t is used to model the height of an object projected in the air, where h(t) is the height in met
rodikova [14]
Looking at the graph you can see that the domain of the function is:
 [0, 3.85]
 To find the range of the function, we must follow the following steps:
 Step 1)
 
Evaluate for t = 0
 h (0) = - 4.87 (0) ^ 2 + 18.75 (0)
 h (0) = 0
 Step 2) 
 find the maximum of the function:
 h (t) = - 4.87t ^ 2 + 18.75t
 h '(t) = - 9.74 * t + 18.75
 -9.74 * t + 18.75 = 0
 t = 18.75 / 9.74
 t = 1.925051335
 We evaluate the function at its maximum point:
 h (1.925051335) = - 4.87 * (1.925051335) ^ 2 + 18.75 * (1.925051335)
 h (1.93) = 18.05
 The range of the function is:
 [0, 18.05]
 Answer:
 
Domain: [0, 3.85]
 Range: [0, 18.05]
 option 1
3 0
3 years ago
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