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Anettt [7]
3 years ago
9

a rectangular piece of cardboard measuring 30 inches by 20 inches is made into an open box by first cutting an identical square

from each corner and then folding up the sides. The edge of each identical square is a whole number.
Mathematics
1 answer:
lina2011 [118]3 years ago
4 0
Draw a graph the function and find the value of x that produces the maximum
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lozanna [386]

Answer:

its, 4.4

Step-by-step explanation:

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2 years ago
2. Three square rooms in Joey's house meet to form a right triangle as shown. Joey
Oxana [17]

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The amount of carpet needed in Room Z should be the same as the carpet needed in both Room X and Room Y.

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3 years ago
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A firm’s marketing manager believes that total sales for next year will follow the normal distribution, with a mean of $3.2 mill
klasskru [66]

Answer:

The sales level that has only a 3% chance of being exceeded next year is $3.67 million.

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

In millions of dollars,

\mu = 3.2, \sigma = 0.25

Determine the sales level that has only a 3% chance of being exceeded next year.

This is the 100 - 3 = 97th percentile, which is X when Z has a pvalue of 0.97. So X when Z = 1.88.

Z = \frac{X - \mu}{\sigma}

1.88 = \frac{X - 3.2}{0.25}

X - 3.2 = 0.25*1.88

X = 3.67

The sales level that has only a 3% chance of being exceeded next year is $3.67 million.

7 0
3 years ago
What number is 24% of 80
jonny [76]
Hi

24% of 80 is 19.2

100% ⇒ 80
24% ⇒ x 

100x = 24·(80)
100x = 1920
x = 1920/100
x = 19.2


3 0
2 years ago
What's the answer? pls help
pishuonlain [190]

Answer:

The slope is 0

Step-by-step explanation:

The slope is the change of y over the change in x. Since y doesn't change at all, it's 0 over 3. 0/3 is just 0, so the slope is 0.

8 0
3 years ago
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