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tekilochka [14]
3 years ago
12

Roberto evaluated 34 ÷ 45 and got an answer of 1516. Which statement is true about his answer? Whoever get it right and helps me

get brainllest pls

Mathematics
1 answer:
AlexFokin [52]3 years ago
5 0

Answer:

roberto is not smart

Step-by-step explanation:

34/45 is 0.75555555555 or 0.75 or .75

ur welcome

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Answer:

y= 250( 1-0.21)^x

Step-by-step explanation:

This represents exponential decay

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What is the slope of the line whose equation is 7x+3y=15? With steps.
Harlamova29_29 [7]

Answer: slope, m = -7/3

Step-by-step explanation:

The equation of the line is

7x+3y=15.

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y = mx + c

Where m = slope( change in y values divided by change in x values)

c = the y intercept. This is the point where the straight line cuts across the y axis

Looking at the given equation, 7x+3y=15,

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Dividing the right hand side of the equation and left hand side of the equation by 3,

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Find the slope of the line that connects these points.
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3 years ago
An elevator has a stated maximum capacity of 12 people or 2004 pounds. If 12 people have weights with a mean greater than (2004/
weqwewe [10]

Answer:

a) 0.6517; b) 0.9115; c) No

Step-by-step explanation:

For part a, we will use the formula for a z score of an individual:

z=\frac{X-\mu}{\sigma}\\\\=\frac{167-182.9}{40.8}\\\\=\frac{-15.9}{40.8}\approx -0.39

Using a z table, we see that the area under the curve to the left of this value is 0.3483.  However, we want the probability greater than this, which is the area to the right of this value under the curve; this means we subtract from 1:

1-0.3483 = 0.6517

For part b, we will use the formula for a z score of the mean of a sample:

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Using a z table, we see that the area under the curve to the left of this value is 0.0885.  This means the area under the curve to the right of this value is

1-0.0885 = 0.9115

For part c,

The fact that the probability that any 12 men on the elevator will have a mean weight greater than 167, putting their total weight above 2004 pounds, is 91% means the elevator does not have the appropriate limit.  There is a high chance the maximum will be exceeded.

8 0
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