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Ber [7]
2 years ago
9

The numbers of pages in the books in a library follow a normal distribution. If the mean number of pages is 180 and the standard

deviation is 30 pages, what can you conclude?
Mathematics
1 answer:
Naddika [18.5K]2 years ago
7 0

Answer:

Step-by-step explanation:

For the answer to the question above, the numbers of pages in the books in a library follow a normal distribution. If the mean number of pages is 180 and the standard deviation is 30 pages, you can conclude that about 16% of the books have fewer than 150 pages. I hope this helps

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B) 65 sq in

Step-by-step explanation:

SA = area of base + 1/2(perimeter of base)(slant height)

= 5² + 1/2(20)(4)

= 25 + 40

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3 years ago
The population of rabbits in Hoppy Park is currently 26 and growing
Slav-nsk [51]

Answer:

A. f(x) = 26 + 0.05x

B. f(x) = 26 * (1.5)x

c. f(x) = 2(1.05)*

D. f(x) = 26 * (0.95).*

Step-by-step explanation:

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2 years ago
Assume that y varies directly with x. If y= 2/5 when x= 1/3, find y when x = 1/4
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Step-by-step explanation:

y1/x1=y2/x2

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7 0
3 years ago
The owner of two hotels is ordering towels. He bought 15 hand towels and 43 bath towels for his hotel in Livingston, spending a
coldgirl [10]

Answer:

The cost of each Hand towels is $5 and Cost of each Bath towel is $11.

Step-by-step explanation:

Let the Cost of Each hand Towels be 'x'.

Let the Cost of Each Bath Towels be 'y'.

Now Given:

15 hand towels and 43 bath towels for his hotel in Livingston, spending a total of $548.

So we can say that;

15x+43y=548

15x=548-43y\\\\x=\frac{548-43y}{15}  ⇒ Equation 1

Also Given:

99 hand towels and 62 bath towels for his hotel in Lancaster, spending $1,177.

So we can say that;

99x+62y =1177  ⇒ Equation 2

Substituting the value of 'x' from equation 1 in Equation 2 we get;

99\frac{(548-43y)}{15}+62y=1177\\\\33\frac{(548-43y)}5+62y=1177\\\\\frac{18084-1419y}5+62y=1177

Now taking LCM to make the denominator common we get;

\frac{18084-1419y}5+\frac{62y\times5}{5}=1177\\\\\frac{18084-1419y}5+\frac{310y}5=1177\\\\\frac{18084-1419y+310y}{5}=1177

18084-1109y=1177\times5\\\\18084-1109y=5885

Combining the like terms we get;

18084-5885=1109y\\\\12199=1109y

Dividing both side by 1109 we get;

\frac{12199}{1109}=\frac{1109y}{1109}\\\\y=\$11

Substituting the value of y in equation 1 we get;

x=\frac{548-43y}{15}=\frac{548-43\times11}{15}=\$5

Hence The cost of each Hand towels is $5 and Cost of each Bath towel is $11.

7 0
3 years ago
The sections of a spinner are labeled with different numbers. The probability of spinning a number greater than 20 is 0.4. The o
dexar [7]

Answer:

5/6

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3 years ago
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