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Ghella [55]
2 years ago
11

F(x)=x^2-3x+15 find f(-8)

Mathematics
1 answer:
Vlada [557]2 years ago
8 0

Answer:

103

Step-by-step explanation:

(-8)²-3(-8)+15

64+24+15

103

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A pie was cut into two equal pieces. Each of the pieces of pie was cut into halves again, and each of those smaller pieces was c
Verdich [7]

3/4

Step-by-step explanation:

If you cut a whole pie into two you get two (2) ½ pieces

1 ÷ 2 = ½

When you cut the two ½ pieces into two you get four (4) ¼ pieces;

½ ÷ 2 = ¼

When you cut the four ¼ pieces into two you get 8 1/8 pieces;

¼ ÷ 2 = ¹/8

Therefore the whole pie at this point is made up of 8 ¹/8 pieces. When two (2) of these pieces are eaten we are left with 6 ¹/8 pieces;

8 – 2 = 6

The portion of the pie left therefore is;

6 * ¹/8 pieces

= ⁶/8

= ³/4

8 0
3 years ago
Elizabeth has 1 7/10 as many plants as Rosalie has I her garden. If Elizabeth has 51 plants, how many plants does Rosalie have i
MrRa [10]
1 7/10 can be rewritten as 1.7

51 / 1.7 = 30 plants.

<span>Rosalie has 30 plants.

</span>
4 0
3 years ago
You want to order carpet for an area in your house. The room measures 12 feet by 10 feet. Remember, Area = Length × Width. If ea
pochemuha

Answer:

402.9 $

Step-by-step explanation:

first you must turn foot into yards "every 3 foot = 1 yard"

3.33 , 4

then we will use the area=length x width formula

3.33 x 4 = 13.32 square yards

the cost of the carpet is

13.32 x 30.25 = 402.9$

4 0
3 years ago
Roger's Cafe has usual daily earnings of $800. Today, the cafe earned 120% of the usual daily earnings. How much did they earn t
riadik2000 [5.3K]

Answer:

960

Step-by-step explanation:

Over here, I'm going to do it in two ways, and either way works, one is just easier to do out:

1st way:

You can represent the percent 120 as a decimal which is 1.20, then you do 800*1.2.

2nd way:

You can use benchmark percents. You find 10 percent of 800 which is 80 and multiply 80 by 2 to get 160, so 20% is 160 dollars. Then you add 160 to 800 (800+160) and get 960.

Please tell me if you have any questions.

8 0
3 years ago
Find the volume of a cylinder whose base has a diameter of 10 and whose height is 12. Use 3.14 for pi and round your answer to t
KengaRu [80]
The first answer is 942
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3 years ago
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