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3241004551 [841]
3 years ago
7

Help me please.........

Mathematics
2 answers:
RideAnS [48]3 years ago
4 0
Okay these answers are easy... oh god what is that I’m sorry but lord...
slavikrds [6]3 years ago
3 0

Answer:

Step-by-step explanation:

I wish you the best of luck you are strong and loved you are very smart happy holidays love you may god bless you

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What best describes the expression y over 7? 7 times some number Some number minus 7 7 more than some number Some number divided
marysya [2.9K]
"Over" usually means divide. First hint, check.

If we write it out, it looks like this:

\frac{y}{7}

This is the same as <em>some number divided by 7.</em>
4 0
3 years ago
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The standard error is the ______ a variance of b variance of the sampling distribution of c standard deviation of the sampling d
skad [1K]
I think that is the mean or the mode . I think more on mean

6 0
3 years ago
A helicopter blade does 3206 full turns in 7 minutes. Work out the number of full turns per minute? Then work out how many turns
ANEK [815]

Answer:

458 turns/min ----- 13740/30 min

Step-by-step explanation:

3206/7 (min) = 458

458 x 30 (min) = 13740

6 0
3 years ago
So I have to compute the following but i don't know what they mean any help?
Gelneren [198K]

Answer:

Step-by-step explanation:

This is a Combination (as in permutation vs combination) question the symbol (n r) refers to "n choose r". This is sometimes written as nCr

i.e the question is asking you to find how many combinations each will yield when you chose r items from n item without repetition and order does not matter.

I will only do the first question for you and you can just follow the same steps to solve the rest of the questions.

Recall that

nCr=\frac{n!}{(r!)(n-r)!}

Consider question a) we are given (5 1) or ₅C₁

we can see that n = 5 and r = 1

If we substitute this into the formula:

₅C₁ = (5!) / [ (1!)(5- 1)!]

= (5!) / [ (5- 1)!]

= (5!) / (4!)

= (5·4·3·2·1) / (4·3·2·1)

= 5

hence ₅C₁ = 5

7 0
3 years ago
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The area of a square game board is 144 sq. in. What is the length of one of the sides of the board?
Arada [10]
<span>So we want to know what is the lenght of the sides of the board that has an area of A=144 in^2. Well, we know that the area of a square is A=a^2 where a is the side of a square. So the length of the side is square root of the area: sqrt(144)= 12. So the length of the game board is 12 inches.</span>
3 0
3 years ago
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