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Mariulka [41]
3 years ago
9

10(8x^2-8x) 10(8x 2 −8x)

Mathematics
1 answer:
Alexandra [31]3 years ago
5 0

Answer:

Simplify the expression.

80x2−80x

Step-by-step explanation:

i think

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The perimeter of the rectangle below is 120 units. Find the value of y.<br> 5y - 3<br> 4y
vladimir2022 [97]

Answer:

y =7

Step-by-step explanation:

2(5y-3)+2(4y) = 120 units

10y - 6 + 8y = 120 units

18y= 120+6

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Assume X is normally distributed with a mean of 5 and a standard deviation of 2. Determine the value for x that solves each of t
mihalych1998 [28]

Answer:

U = 5

S = 4

1.) P(X>x) = 0.5

Prob = 1-0.5 = 0.5

We have z = 0, that is the z score with the probability of 0.5

X = u + z(s)

= 5+0*4

= 5

2.) 1-0.95 = 0.05

Z score having this probability

Z = -1.64

X = 5-1.64*4

= 5-6.56

= -1.56

3.) P(z<1.0) - p(X<x) = 0.2

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We find the z score given this probability

Z= 0.36

X = 5+0.36*4

= 5+1.44

= 6.44

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0.95 = p(X<x)-0.308538

p(X<x) = 0.308538 + 0.95

= 1.258538

There is no x value here, given that the probability is more than 1.

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We get the z score value

= -2.58

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-x = 0-2.58(4)

X = 10.32

5 0
3 years ago
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