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Lady_Fox [76]
2 years ago
9

NEED HELP NOW!! FOR MATH 10PTS

Mathematics
1 answer:
meriva2 years ago
4 0

Answer:

a)

Step-by-step explanation:

Cost function = revenue function - profit function

   = -0.3x² + 150x - [-0.5x² + 250x - 300]

   = -0.3x² + 150x + 0.5x² - 250x +300

  = -0.3x² + 0.5x² + 150x - 250x + 300   {Combine like terms}

  = 0.2x² - 100x + 300

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9. Carla has $200 in her bank account.
Firdavs [7]

(a) Linear Equation:   f(x) = 200 - 20x

(b) x-intercept : (10,0)

(c) y-intercept : (0,200)

(d) Domain : {0,1,2,3,4,5,6,7,8,9,10}

    Range : {0,1,2,...,200}

Step-by-step explanation:

Step 1: As we can see in graph, money in Carla is decreasing in multiples of 20 can be referred as 20x.

Every week $20 is getting deducted from the total amount of $200.

Step 2: (a) So we can quote it in equation as,

f(x) = 200 - 20x

where x represents number of weeks

Step 3: (b) x-intercept is where value of y becomes 0.

So, referring graph we can determine x intercept as x = 10. Point (10,0). which also means no money left in account.

Step 4: (c) y-intercept is where value of x becomes 0.

So, referring graph we can determine y intercept as y = 200. Point (0,200). which is starting value of money in account.

Step 5: (d) Domain : {0,1,2,3,4,5,6,7,8,9,10}

                  Range : {0,1,2,...,200}

4 0
3 years ago
a $3 500.00 principal earns 3 interest compounded semiannually after 20 yeara what is the balance in the account
Amiraneli [1.4K]
A=3,500×(1+0.03÷2)^(2×20)
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5 0
3 years ago
Select the multiplication equation that could represent the following question: how many 3/8s are in 5/4
muminat

Answer:

The answer is: 3 1/3.

Step-by-step explanation:

8 0
2 years ago
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Scrat [10]

Answer:

The answer is 28.

Step-by-step explanation:

Add all of them.

(L/ length) 12.

(W/ width) 10

(H/ height) 6

12 + 10 + 6 = 28

I hope this helps

6 0
3 years ago
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Charmaine pumped 42 gallons of water out of her pool. This was done over a period of 7 minutes at a constant rate. What was the
Mariana [72]
The answer is 6 bc take 42 divided by 7 = 6
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2 years ago
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