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Brut [27]
3 years ago
9

Find Product -3x(8x^2+2x-4)

Mathematics
2 answers:
quester [9]3 years ago
8 0
-24x^3-6x^2+12x
..............
serious [3.7K]3 years ago
5 0

Answer:

−243−62+12

Step-by-step explanation:

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laila [671]

Answer:

1080 in^2

Step-by-step explanation:

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3 years ago
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solniwko [45]

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Step-by-step explanation:

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2 years ago
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A rope is swinging In such a way that the length of the arc traced by a knot at its bottom end is
Sati [7]

Answer:

  13.6 ft

Step-by-step explanation:

The geometric sequence of arc lengths can be described by ...

  f(n) = a·b^n

We have (n, f(n)) = (3, 20) and (7, 12). Using these values, we can find the common ratio (b):

  20 = a·b^3

  12 = a·b^7

Then ...

  12/20 = (a·b^7)/(a·b^3) = b^4 = 3/5

We want the 6th term, which we can get from the 7th term by multiplying by b^-1.

  b^(-1) = (b^4)^(-1/4) = (3/5)^(-1/4) = √(√(5/3)) ≈ 1.13622

Then the 6th swing had an arc length of ...

  f(6) = f(7)·b^-1

  f(6) = (12 ft)(1.13622) ≈ 13.63 ft ≈ 13.6 ft

3 0
2 years ago
IQ scores are normally distributed with a mean of 100 and a
Alekssandra [29.7K]

Answer:

33.2%

Step-by-step explanation:

Calculate the z-scores.

z = (x − μ) / σ

z₁ = (82 − 100) / 15

z₁ = -1.2

z₂ = (98 − 100) / 15

z₂ = -0.133

Use a chart or calculate to find the probability.

P(-1.2 < Z < -0.133) = P(Z < -0.133) − P(Z < -1.2)

P(-1.2 < Z < -0.133) = 0.4470 − 0.1151

P(-1.2 < Z < -0.133) = 0.3319

Rounded to the nearest tenth, the percentage is 33.2%.

7 0
2 years ago
The information is in the picture PLEASE HELP ME
abruzzese [7]

Answer:

The answer is A

Step-by-step explanation:

2t(t-4)

(2t x t)(2t x -4)

2t^2 - 8t

4 0
2 years ago
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