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solong [7]
4 years ago
9

F(x) = 2x2 – 15 Find f(-2)

Mathematics
1 answer:
Helen [10]4 years ago
3 0
F(x) = 2x^2 -x -15 = 0
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Complete the proof for proving that the diagonals of an isosceles trapezoid are congruent.
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..............................[a+b]2+c2
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3 years ago
In the partial sequence …, 987, N, 2584, 4181, …, each new term is the sum of the two previous terms. Find the whole number valu
Alina [70]

Answer: 2584

Step-by-step explanation:

We can find N with 2584 and 4181.

4181 - 2584

= 1597

We can also check our answer by adding 1597 and 987

1597 + 987

= 2584

5 0
3 years ago
if a right circular cone has a volume of 15 cubic ft and a radius of 3 ft, what is the height of the cone?
Setler79 [48]
Volume of cone=1/3 times height times pir^2
v=15
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15=1/3 hpi3^2
15=1/3hpi9
15=9/3hpi
15=3hpi
divide 3
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h=5/pi
pi=aprox 3.14
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1.59 ft
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3 years ago
For every 2 miles Joan runs, Stacy runs 3 miles. How far will Stacy have run if Joan runs 24 miles?
oee [108]
Stacy will run 72 miles.

6 0
3 years ago
Read 2 more answers
Linkin Corporation is considering purchasing a new delivery truck. The truck has many advantages over the company’s current truc
Romashka [77]

Answer:

Payback is 7.3 years

NPV $3,099  

Step-by-step explanation:

The formula for payback period period=initial investment/annual cost savings

The initial investment is the amount of cash outflow that would be required to purchase the new delivery truck,which is $54,750,while on the other hand the  annual cost savings is $7,500

cash payback period=$54,750/$7,500=7.3 years

Ordinarily,the expected payback is 1/2 of 8 years=4 years.

The net present is the present worth of the future cost savings as well as the scrap value of the truck in year 8,calculated by multiplying the cash flows with the discounted factors for relevant years as below:

Years                 cash flow         DCF at 8%        Present values

0                      -$54,750            1                           -$54,750  

1-7 years            $7500             5.2064                  $39,048

8                        $34,800           0.54027               $18,801

NPV                                                                          $3,099  

Note that the  $34,800 =$7500+$27300

The year 1-7 factor is annuity factor for 8% 7 years

3 0
4 years ago
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