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Galina-37 [17]
3 years ago
10

(100 POINTS!!!!!) DO NOT GIVE ME THE ANSWER! Please just explain HOW I can get the answer

Mathematics
1 answer:
dlinn [17]3 years ago
4 0

Answer:

  • B. $3281.48

Step-by-step explanation:

<u>Use compound interest formula</u>

  • A = P(1 + r)^(nt), where A- future amount, P - invested amount, r- interest rate, t- time, n- number of compounds per year

<u>Given:</u>

  • P = $2975
  • r = 4% = 0.04
  • t = 2.5 years
  • n = 1

<u>Substitute the values and calculate:</u>

  • A = 2975(1 + 0.04)^2.5 = 3281.48

Correct choice is B

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In order to solve a proportion you need to cross multiply, so you would do:

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3 years ago
Describe the graph of the function. y = |x – 4| – 7
Lemur [1.5K]

Answer:

This is always ''interesting'' If you see an absolute value, you always need to deal with when it is zero:

(x-4)=0 ===> x=4,

so that now you have to plot 2 functions!

For x<= 4: what's inside the absolute value (x-4) is negative, right?, then let's make it +, by multiplying by -1:

|x-4| = -(x-4)=4-x

Then:

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for x=>4, (x-4) is positive, so no changes:

y= x-4-7 = x-11,

Now plot both lines. Pick up some x that are 4 or less, for y = -x-3, and some points that are 4 or greater, for y=x-11

In fact, only two points are necessary to draw a line, right? So if you want to go full speed, choose:

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The reason is that the absolute value is continuous, so x=4 works for both:

x=4===> y=-4-3 = -7

x==4 ====> y = 4-11=-7!

abs() usually have a cusp int he point where it is =0

Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

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2 years ago
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Answer:

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