3 years ago

A sample of 4 is selected from a lot of 20 piston rings. How many different sample combinations are possible?

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

3 0

Answer:

Step-by-step explanation:

Sample of 4 is selected: _ _ _ _

Number of possibilities for first selection: 20

Number of possibilities for second selection: 19 (because one was already chosen)

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3. The student council is selling roses to collect funds for a charity. The graph be

dexar [7]

Answer:

$Unit = 3$

Step-by-step explanation:

Given

See attachment for graph

Required

The unit cost

Pick any point on the dots of the graph; we have:

$(x,y) = (2,6)$

The unit cost is then calculated as:

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5 0

2 years ago

Please answer quickly!!!!

Natalka [10]

The volume of the rectangular prism can be found with the formula
v= length × width × height
V = 10×10×30 = 3000

the volume of the triangular prism can be found with
v = 1/2(base×width×height)
v=1/2×30×9×10 = 1/2×2700
v = 1350

Now add the two volumes together for the total volume...

3000+1350 = 4,350 in^3

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3 years ago

A number is chosen at random from the first 100 positive integers. Find the probability that the number is either even or a perf

Ber [7]

The answer is B. 11/20

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2 years ago

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If guy walks from his house to school and back, how far dose he walk

olga55 [171]

Answer:

He walks the distance to his house from school twice, hope this helps!! (: