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Georgia [21]
3 years ago
11

The lateral surface area of cone A is equal to the lateral surface area of cylinder B.

Mathematics
1 answer:
Natasha2012 [34]3 years ago
4 0

Answer:

TRUE

Step-by-step explanation:

Lateral area of cone is given by: πrl

where r is the radius and l is the slant height

Here r=r and l=2h

Hence, lateral area of cone A= π×r×2h

                                            =  2πrh

Lateral area of cylinder is given by: 2πrh

where r is the radius and h is the height

Lateral area of cylinder B=2πrh

Clearly, both the lateral areas are equal

Hence, the statement that:The lateral surface area of cone A is equal to the lateral surface area of cylinder B. is:

True

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The monthly amounts spent for food by families of four receiving food stamps approximates a symmetrical, normal distribution. Th
e-lub [12.9K]

Answer:

95% of monthly food expenditures are between $110 and $190.

Step-by-step explanation:

Given : The monthly amounts spent for food by families of four receiving food stamps approximates a symmetrical, normal distribution. The sample mean is $150 and the standard deviation is $20.

To find : Using the Empirical rule, about 95% of the monthly food expenditures are between which of the following two amounts?

Solution :

At 95% of the data is between two standard deviation to left and right of the mean is given by,

To the left side, \bar{x}-2\sigma

To the right side, \bar{x}+2\sigma

We have given,

The sample mean \bar{x}=\$150

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Substitute in the formula,

\bar{x}-2\sigma

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=110

\bar{x}+2\sigma

=150+2(20)

=150+40

=190

Therefore, 95% of monthly food expenditures are between $110 and $190.

6 0
3 years ago
What is the second smallest number that has 1,2,3,4,and 5?
n200080 [17]

Answer:

12354

Step-by-step explanation:

The smallest number with 12345  (I am assuming with out decimals) is

12345

If we switch the 5 and 4  we will get the second smallest number

12354

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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