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Crank
3 years ago
14

A. Identify the percentage, rate and base.

Mathematics
1 answer:
Finger [1]3 years ago
5 0

Answer:

1. rate = 30, base = 40, percentage = 12

2. rate = 6, base = 24, percentage = 25

3. rate = 16, base = 64, percentage = 25

4. rate = 4, base = 50, percentage = 20

5. rate = 75, base = 80, percentage = 60

Step-by-step explanation:

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By switching service providers , a family's telephone bill decreased from about $ 50 a month to about 44 . What was the percent
anyanavicka [17]

Answer:

12% decrease

Step-by-step explanation:

50 - 44 = 6

6/50 = 0.12 or 12% decrease

6 0
3 years ago
Write 75% as a decimal
aivan3 [116]

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0.75

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Find a degree 4 polynomial having zeros -8,-1,4 and 5 and the coefficient of x^4 equal 1.
Keith_Richards [23]

Answer:

  x^4 -53x^2 +108x +160

Step-by-step explanation:

If <em>a</em> is a zero, then (<em>x-a</em>) is a factor. For the given zeros, the factors are ...

  p(x) = (x +8)(x +1)(x -4)(x -5)

Multiplying these out gives the polynomial in standard form.

  = (x^2 +9x +8)(x^2 -9x +20)

We note that these factors have a sum and difference with the same pair of values, x^2 and 9x. We can use the special form for the product of these to simplify our working out.

  = (x^2 +9x)(x^2 -9x) +20(x^2 +9x) +8(x^2 -9x) +8(20)

  = x^4 -81x^2 +20x^2 +180x +8x^2 -72x +160

  p(x) = x^4 -53x^2 +108x +160

_____

The graph shows this polynomial has the required zeros.

4 0
3 years ago
WILL MARK BRAINLYIST IF RIGHT!!I don’t know how to do this
Agata [3.3K]

Answer:

i would just round 0.50 to the nearest tenth

Step-by-step explanation:

5 0
2 years ago
Find the midpoint of AC is at -2 and C is at 3 on a number line
Bad White [126]
2c3 Because when you look at it when you look at the question if I do that and then you were at the AC is at the two and see is that the three on the number line then you would add that on and you’ll get your answer
3 0
3 years ago
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