2 years ago

There are 6 blades on each windmill how many total blades are on 7 vwindmills? use fives facts to solves

Mathematics

1 answer:

aliina [53]2 years ago

8 0

6 times 7 = 42 hope helped

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True or false a corollary is a statement that can be easily proved using a theorem

sammy [17]

Answer:

The given statement is true.

Step-by-step explanation:

A corollary is a statement that can be easily proved using a theorem. This statement is true.

A corollary is usually defined as some idea formed from something that is already existing or already been proven.

This is the reason it is not difficult to prove as it has already been proven.

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1 year ago

what is the answer to this A cylinder has a base diameter of 8ft and a height of 17ft. What is its volume in cubic ft, to the ne

LekaFEV [45]

Answer:

855 cft

Step-by-step explanation:

(22/7)*4*4*17=855cft(rounded )

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1 year ago

A collection of 108 coins containing only quarters and nickels is worth $21. A table titled Coin Collection showing Number of Co

harina [27]

Answer:

q = 108-n

Step-by-step explanation:

Given: 108 coins containing only quarters and nickels

q = 108-n

since total number of coins is 108, and n= number of nickels

If you want to know how many of each kind of coin, read on:

First solve the number of quarters and nickels.

If all 108 coins are quarters, the value is 108*0.25 = $27

Since this value exceed the actual by 27-21 = $6,

we replace a number of quarters by nickels.

Each replacement will reduce the value by 25 - 5 = 20 cents = 0.2 dollars.

So it will take 6/0.2 = 30 replacements.

Therefore there are 108-35 = 78 quarters and 30 nickels.

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1 year ago

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Use the binomial theorem to show that 7^n + 2 is divisible by 3, where n is a positive integer.

masha68 [24]

By the binomial theorem,

$7^n=(6+1)^n=6^n+n6^{n-1}+\dbinom n26^{n-2}+\cdots+\dbinom n{n-2}6^2+n6^1+1$

Each term containing a factor 6 is divisible by 3, since 3 divides 6. The remaining 1 and 2 sum to 3, which is also divisible by 3.

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1 year ago

A decorator wants to line the bottom of 3 drawers with paper. If the bottom of each drawer measures 36 inches by 20 inches, how

natali 33 [55]

Answer:

168 I believe

Step-by-step explanation:

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2 years ago