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Natasha2012 [34]

3 years ago

12

Horizontal cross section of a cylinder

2 answers:

cluponka [151]3 years ago

7 0

Horizontal cross section of a cylinder is circle because the horizontal section is parallel to the base and the base of the cylinder is a circle.

Hope this helps.

Eddi Din [679]3 years ago

5 0

The cross section is 10 ft by 15 ft

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In ASTU, SU is extended through point U to point V, m_STU = (2x + 8),

Schach [20]

Answer: x=8

Step-by-step explanation:

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2 years ago

The entertainment committee at Maplecrest Junior High School has narrowed down the theme of the Spring

Roman55 [17]

Answer:

Assign a number to each student, and use a computer program to generate 100 random numbers between 1 and 2000. Ask those students whose numbers are selected.

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3 years ago

Your coffee bar has two kinds of drink One cup of the first one costs 9 grams of juice , 4 grams of coffee and 3 grams of sugar

VMariaS [17]

Answer:

How many drinks should be sold to get a maximal profit? 468

Sales of the first one = 345 cups

Sales of the second one = 123 cups

Step-by-step explanation:

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where:

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S = second type of drink

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3 years ago

Gena wants to estimate the quotient of –21.87 divided by 4.79. Which expression shows the best expression to estimate the quotie

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3 years ago

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Which set is closed under subtractionWhich answer choice shows that the set of irrational numbers is not closed under addition

vovikov84 [41]

Answer:

(a) Set of rational numbers

(b) $\pi + (-\pi) = 0$

Step-by-step explanation:

Solving (a): Set that is closed under subtraction

The solution to this is rational numbers.

For a set of number to be closed under subtraction, the following condition must be true

$a -b = c$

Where

a, b, c are of the same set.

The above is only true for rational numbers.

e.g.

$1 - 2 = -1$

$5 - 5 = 0$

$\frac{1}{2} - \frac{1}{4} = \frac{1}{2}$

$4 - 2 = 2$

The operations and the result in the above samples are rational numbers.

Solving (b): Choice not close under addition[See attachment for options]

As stated in (a)

For a set of number to be closed under subtraction, the following condition must be true

$a -b = c$

Where

a, b, c are of the same set.

In the given options (a) to (d), only

$\pi + (-\pi) = 0$ is not close under addition because:

$\pi$ is irrational while $0$ is rational

<em>In other words, they belong to different set</em>

8 0

2 years ago