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max2010maxim [7]
3 years ago
7

What is a strategy for 336 divided by 8

Mathematics
2 answers:
Lerok [7]3 years ago
6 0
The bus stop method or chunking both of them are very acurate methods. chunking, eg.if you were doing 21 divided by 3 you would see what time three is 21. with big numbers you can take away small chunks. eg 336dived by 8 10x8=80 see what you are left with then keep on doing it until you get to 0.add up what you have times it by each ti me and you have your anser
allsm [11]3 years ago
4 0
336=400-64\\\\therefore\\\\336:8=(400-64):8=(400:8)-(64:8)=50-8=42
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Answer:

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write an expression for add 2 and 4 and multiply the sum by 3 next add 5 to that product in double the results
Rzqust [24]
So let's start from the beginning.

Add 2 and 4:

(2 + 4)

Multiply the sum by 3:

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Then add 5 to that product:

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8 0
2 years ago
Prove that sin20sin40sin60sin80=3/16
never [62]
We'll use the following properties of sine and cosine to prove this:

sin(a)\cdot sin(b) = \frac12(cos(a-b) - cos(a+b))

cos(a)\cdot cos(b) = \frac12(cos(a+b) + cos(a-b))

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Then it's just a matter of filling it in...

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1/8(1 -  cos160 - cos120 + cos200) =

1/8(1 -  cos160 - cos120 + cos160) =

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5 0
3 years ago
What is the value of x in the equation 25x^2 = 16?
Lera25 [3.4K]

25x^2 = 16

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take the square root of each side

sqrt (x^2) = +- sqrt(16/25)

x = +- sqrt(16)/sqrt(25)

x = +- 4/5

x = 4/5, - 4/5

6 0
3 years ago
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