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DanielleElmas [232]
3 years ago
8

Which expression is equivalent to 5(5r)?

Mathematics
1 answer:
kherson [118]3 years ago
5 0

Answer:

25 r is equivalent to 5(5r)

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A teacher selects students from her class of 37 students to do 4 different jobs in the classroom: pick uphomework, hand out revi
julia-pushkina [17]

Answer:

There are 1,585,080 ways for her to select students and assign them to the jobs

Step-by-step explanation:

The order in which the students are selected is important, since different orderings means different jobs for each student selected. So the permutations formula is used to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

P_{(n,x)} = \frac{n!}{(n-x)!}

In this problem:

4 students selected from a set of 37. So

P_{(37,4)} = \frac{37!}{(37-4)!} = 1585080

There are 1,585,080 ways for her to select students and assign them to the jobs

3 0
3 years ago
What is the answer for 10x + 75 - 5x =110?
Citrus2011 [14]
7 would be your answer :D
8 0
3 years ago
Which expression is equivalent to 3r-6+r3r−6+r?
geniusboy [140]

Answer:

it is r i dont know  how

Step-by-step explanation:

because i used and app from my phone (math) and its says that is r

8 0
3 years ago
Solve the system of linear equations using multiplication. - 3x + 2y 5x - 3y = 17 The solution is​
ladessa [460]
This is what i got X= 17/2 + Y/2
7 0
3 years ago
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Find the surface area of each pyramid to the nearest whole number
Igoryamba

Answer:

297

Step-by-step explanation:

297 ≈ 12 * √(12^2 + 4 * 11.124^2) + 12^2

4 0
3 years ago
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