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sasho [114]
3 years ago
6

Someone please help me I need it

Mathematics
1 answer:
umka21 [38]3 years ago
4 0

When x = -1, y = - 3 ((-1)^2-4)

When x = 0, y = -4 ((0)^2-4)

When x = 5, y = 21 ((5)^2-4)

When x = 13 y = 165 ((13)^2-4)

You just substitute the values of X into the equation

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Can you help me with both don’t know if second one is right
erma4kov [3.2K]

Answer:

1. $67.72

2. It's correct.

Step-by-step explanation:

1.

bill: $68.89

discount: $10

tip: 15%

Calculate the total with the discount.

68.89-10=58.89

Now calculate 15% of that.

Convert 15% to decimal by dividing by 100

\frac{15}{100}=0.15

Multiply

0.15(58.89)=8.83

Add this to the original amount.

58.89+8.83=67.72

----------------------------------------------------------------------------

Calculate 20% of 148.25

Convert 20% to decimals by dividing by 100

\frac{20}{100}=0.20

Multiply

0.20(148.25)=29.65 This is how much they will tip.

Add this to the original bill;

148.25+29.65=177.90

7 0
4 years ago
Out of the 20 students in my classroom, 15 wore their pajamas on Pajama Day. In decimal form, represent the portion of students
kvasek [131]
75.0% of students wore pajamas
4 0
3 years ago
Read 2 more answers
What is 10.465 - (-25.21)
UNO [17]

Answer: 35.675

Step-by-step explanation:

10.465−(−25.21)

The opposite of −25.21 is 25.21.

10.465+25.21

Add 10.465 and 25.21 to get 35.675.

35.675

5 0
2 years ago
What is 89/100 as a percent?
masya89 [10]
89/100 as a precent is is 89% because if you change 89/100 to a decimal you get .89 and then you multiply that by 100 (or just move the decimal over 2 places to the right) and you will get 89% make since? and its the same way if your going from % to decimal except you divide by 100( or move the decimal over 2 places to the left) so to a percent is right and to a decimal is left. easy right?
4 0
3 years ago
Read 2 more answers
The point (12,5) is on the graph, what do the coordinates tell you about the water in the bucket?
denpristay [2]
I think it’s A but I’m not to sure
4 0
3 years ago
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