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amm1812
3 years ago
9

How many ways can a person select 3 videotapes from a collection of 10 tapes?

Mathematics
1 answer:
lesya [120]3 years ago
6 0
If the 10 videotapes are distinct (different) and the order of selection is immaterial, then there are
C(10,3)=10!/(3!(10-3)!)=10!/(3!7!)=10*9*8/(1*2*3)=120 
ways to select three videotapes out of 10.
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A number close to 1,772 that is easily divisible by 90
VashaNatasha [74]
<h2>1,800</h2>

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Let's try to divide 1,772 and see how much math we need to do...

1,772 / 90 = 19.6888888889

Well, clearly we need more than 1,772!

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Now, play around with adding numbers.

(I'm gonna skip all the experimenting, here's the closest # available for easy division!)

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1,800 / 90 = 20

7 0
2 years ago
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Answer:

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2 years ago
Let a=2 and b=1, find the value of 2a + 3b
motikmotik

Answer:

7 is a answer

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3 0
3 years ago
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Lexi and her mom are volunteering at an emergency relief center. To help prepare in case of a flood, they pack emergency kits wi
GenaCL600 [577]

The equation that can be used to find the number of emergency kits that Lexi packs is 4x=120.

Given that Lexi packs 4 water bottles into each kit and total 120 water bottles are packed by Lexi.

We are required to find the equation which can be used to find the number of emergency kits that Lexi packs.

Equation is like a relationship between two or more variables that are expressed in equal to form.Equation of two variables look like ax+by=c. It may be linear equation,quadratic equation, cubic equation and many more depending on the power of the variable that is present in that equation.

let the number of emergency kits that Lessi packs be x.

The equation which will shows the total number of bottles be:

=(Number of bottles in 1 kit)*x

Equation will be:

4x=120

Hence the equation that can be used to find the number of emergency kits that Lexi packs is 4x=120.

Learn more about equations at brainly.com/question/2972832

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8 0
1 year ago
Please answer this question
BlackZzzverrR [31]

Range: lowest possible y-value to the highest possible y-value

In this case, the graph spans from -4 to 1, taking on all of the y-values between those two points. But, the graph also has a straight line at y=3.

Range: -4 < y <= 1 or {3}

Hope this helps!

7 0
3 years ago
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