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NemiM [27]
3 years ago
9

I need help with all of these ASAP thank you so much

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
7 0

Answer:

C

Step-by-step explanation:

Functions meet the vertical line test:

a vertical line will intersect the graph at  most at one point

C doesn't pass the vertical line test and is therefor not a function

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The original price of a pair of headphones is $39.99 before tax. When David bought the headphones they rang up for $31.99 before
aleksley [76]

Answer:

To find the sales tax multiply the purchase price by the sales tax rate. Remember to convert the sales tax rate from a percent to a decimal number. Once the sales tax is calculated, it is added to the purchase price. The result is the total cost—this is what the customer pays.

Step-by-step explanation:

8 0
3 years ago
What is 15% of 60? How did you find your answer?​
Norma-Jean [14]

Answer:

15% of 60 is 9

Step-by-step explanation:

15%= 3/20

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5 0
3 years ago
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(y-3)(y+10) find the product please​
allochka39001 [22]

Answer:

y^2 +7y-30

Step-by-step explanation:

Step 1:  Use FOIL

y·y = y^2

y· 10= 10y

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Step 2: <em>combine like terms</em>

y^2+ 10y-3y-30

7^2+ 7y-30

and thats all :)

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4 0
3 years ago
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Amy has set aside $150 a month for her cell phone bill. The cost for a monthly cell phone plan is a $65 access fee plus $20 per
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3 years ago
Daniel and Edwin went to lunch. Daniel’s meal cost $20 and Edwin’s meal cost $18.50. They each left an 18% tip on the price of t
Neporo4naja [7]

Answer:

$45.43

Step-by-step explanation:

20 × 0.18 = 3.60

18.50 × 0.18 = 3.33

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The total meal cost is 38.50

38.50 + 6.93 = 45.43

The total of everything is 45.43

4 0
3 years ago
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