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emmasim [6.3K]
4 years ago
15

Don't understand these questions help!!!!!

Mathematics
1 answer:
scoundrel [369]4 years ago
4 0
8) B - It's asking for the price you should offer, so you want to find 7% of the asking price (p) by multiplying it to 0.07 (which is 7%, move decimal to left 2 places). Then you want to subtract that number from the asking price to get the amount you should offer

9) C - It's asking for how much money you'll save, so you need to multiply how much computers you'll buy (25) to the price of each computer (z). Then you'll multiply that number to 0.19 (which is 19%, move decimal to left 2 places) to get how much you'll save
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Find the zeros of the function.
Reika [66]

Answer:

x = - 4, x = - \frac{1}{5}

Step-by-step explanation:

To find the zeros let g(x) = 0, that is

(- 5x - 1)(2x + 8) = 0 ← in standard form

Equate each factor to zero and solve for x

- 5x - 1 = 0 ( add 1 to both sides )

- 5x = 1 ( divide both sides by - 5 )

x = \frac{1}{-5} = - \frac{1}{5}

2x + 8 = 0 ( subtract 8 from both sides )

2x = - 8 ( divide both sides by 2 )

x = - 4

Thus

smaller x = - 4

larger x = - \frac{1}{5}

8 0
3 years ago
Select the correct answer. Determine which equation has the same solutions as the given equation. x2 − 10x − 11 = 0 A. (x − 10)2
Zinaida [17]

Answer:

D. (x - 5)^{2} = 36

Step-by-step explanation:

given equation: x^{2} - 10x - 11 = 0

8 0
2 years ago
For each of these intervals, list all its elements or explain 2.1 Sets 131 why it is empty. a) [a,a] c) (a, a] e) (a,b), where a
stepan [7]

Answer: b

Step-by-step explanation:

6 0
4 years ago
Ted practices two types of swimming styles for a total of 50 minutes every day. he spends 20 minutes more practicing the breast
cluponka [151]

Answer:

see below

Step-by-step explanation:

butterfly = x minutes

breast = y minutes

total is 50 minutes

breast stroke = butterfly +20

Part A

x+y = 50

y = x+20

Part B

Substitute the second equation into the first

x+ (x+20) = 50

2x+20 = 50

2x+20-20 = 50-20

2x = 30

2x/2 = 30/2

x = 15

y = x+20

y = 20+15

y = 35 minutes

35 minutes on the breast stroke

Part C

45 minutes on the butterfly is not reasonable

We only have a total of 50 minutes

50-45 = 5

But he spend more time on the breast stroke ( 20 minutes more), but if he spend 45 minutes on the butterfly, he would have to spend less on the breast stroke.

4 0
3 years ago
I need answers to all
labwork [276]
1. is A
2. is B
3. is A or B
4. is C
5. is C
6. is D
7. is A
8. is A or C
9. is ?
10. is ?
6 0
3 years ago
Read 2 more answers
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