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ludmilkaskok [199]
3 years ago
15

F(x) = -2x² – 3 and

Mathematics
1 answer:
Anarel [89]3 years ago
4 0

Answer

f(-4) = 125, g(6) = -13

Step-by-step explanation:

all of those symbols might look really scary, but really all the problem is asking you to do is substitute -4 into the x in f(x) and 6 into the x in g(x) -- basically, f(-4) = -2((-4)^{3}) - 3 = 125, and g(6) = -2(6) - 1 = -13. there are your answers!

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If a circle has an area of 84π units then what is the measure of its
Tatiana [17]
  • <em>Answer:</em>

<em>a. 2√21 units</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there ! </em>

<u><em>Area formula</em></u>

<em>A = π·r²</em>

  • <em>replace A</em>

<em>84π = πr²</em>

<em>r² = 84π/π</em>

<em>r² = 84</em>

<em>r² = 2²×3×7</em>

<em>r = √2²×3×7</em>

<em>r = 2√3×7</em>

<em>r = 2√21</em>

<em>Good luck !</em>

6 0
3 years ago
Harriet paid $349.65 for 7 fruit trees. if each of the trees cost the same, what is the cost of one tree?
coldgirl [10]
This is a division problem.
Divide 349.65 by 7
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Answer is $49.95


To check multiply 49.95 x 7= 349.65
8 0
3 years ago
1 load of bricks weigh twice as much as a load of sticks. the total weight of 4 loads of each is 771 kg. What is the total weigh
liq [111]
X=brick y=sticks
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Answer:
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slega [8]

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Step-by-step explanation:

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Step-by-step explanation:

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