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3 years ago

Please I needa answer !!

Mathematics

1 answer:

Alecsey [184]3 years ago

7 0

Answer:

the answer is B and C

Step-by-step explanation:

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What is the volume of the rectangular prism? A prism has a length of 8 inches, width of 2 inches, and height of 12 and one-half

xenn [34]

Answer:

200 in3

Step-by-step explanation:

To find the volume of a rectangular prism you multiply each dimension to each other. 8*2 is 16, and 16*12.5 is 200. This means the volume is 200 in3.

Hope this helps :)

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3 years ago

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In what situation can you use only multiplication to find equivalent fractions to a given fraction given example?

olya-2409 [2.1K]

To find equivalent fractions, multiply the numerator<span> AND denominator by the same nonzero whole number. This procedure is used to solve example 4. You can multiply the </span>numerator<span> and the denominator of a fraction by any nonzero whole number, as long as you multiply both by the same whole number! Hope this helped! :)</span>

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3 years ago

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What is the perimeter of a square if one side is 2 one side is 5 one side is 3 and the last side is 3

Usimov [2.4K]

Answer:

If you just add them together you get 13

Step-by-step explanation:

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3 years ago

Enny White is shopping for CDs. She decides to purchase 3 movie soundtracks. The music store has 7 different movie soundtracks i

Gala2k [10]

Answer:

35 different selections of soundtracks are possible

Step-by-step explanation:

Total number of soundtracks available at the store = 7

Enny decides to purchase 3 movie soundtracks.

So, in this problem we have to find in how many ways can Enny chose 3 soundtracks out of 7. The order in which the soundtracks are chosen does not matter e.g soundtracks A,B and C are the same as soundtracks B,C and A.

In an arrangement when the order does not matter, we use combinations to find the total possible number of arrangements or selections.

So, for this problem choosing 3 soundtracks out of 7 means forming combinations from 7 objects taken 3 at a time. This can be represented mathematically as:

$^{7}C_{3}$

The general formula for combinations is:

$^{n}C_{r}=\frac{n!}{r!\times(n-r)!}$

Using the values, we get:

$^{7}C_{3}=\frac{7!}{3!\times(7-3)!} =35$

This means, Enny can make 35 different selections of soundtracks.

7 0

3 years ago

Assume a and b are whole numbers, and a>b. Which expression has the least value?

dedylja [7]

a > b

A . a^5b^3/ab^4 = a^4/b

B. a^4 / a*a*a*a = a^4 / a^4 = 1

C. ab^2 / a^2b = b/a

D. b*b*b/b^3 = b^3/b^3 = 1

B and D, doesn't matter what values of a and b it's always equal 1

Lets say a = 2 and b = 1

A. a^4/b = 2^4 / 1 = 16/1 = 16

C. b/a = 1/2 = 0.5

So C has the least value

Answer:

ab^2 / a^2b

8 0

3 years ago