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Lesechka [4]
2 years ago
11

Which of the following expressions is true?

Mathematics
1 answer:
adoni [48]2 years ago
6 0
It is B because 52 • 53 is 2756 which is greater than 55
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How to convert from rectangular to polar coordinates pre calc?
Verizon [17]
<span>Given the polar coordinate (r,θ), write. x=rcos θ and. y=rsin θ.Evaluate cos θ and. sin θ.Multiply cos θ by. r. to find the x-coordinate of the rectangular form.<span>Multiply sin θ by. r. to find the y-coordinate of the rectangular form.</span></span>
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3 years ago
Cheddar cheese costs 7.50 for 1 kg Marie buys 200 grams of cheddar cheese how much does she pay
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8 0
3 years ago
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A cupcake shop uses 1/3 pounds of cinnamon to make 4 batches. How much do they use per batch?
tiny-mole [99]
1/12 of a pound.
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5 0
3 years ago
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Solve the simultaneous equation
MrMuchimi

Answer:

x=4.5

y=-2.5

Step-by-step explanation:

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Multiply 3x+5y=1 by 2

Solve simultaneously

5 0
2 years ago
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What is the variance of the following data? If necessary, round your answer to two decimal places. 17, 13, 13, 22, 11, 20
Bond [772]
Variance is the standard deviation squared but we're not going to use that now. Let's first calculate the mean:

mean = (17+13+13+22+11+20)/6 = 16.

Now for each value, let's see how far it is from this mean. We'll square these distances and average them. That's our variance.

17 distance 1 squared = 1
13 distance 3 squared = 9
13 distance 3 squared = 9
22 distance 6 squared = 36
11 distance 5 squared = 25
20 distance 4 squared = 16

Now average these outcomes:

variance = (1+9+9+36+25+16)/6 = 16.

So the variance by coincidence is the same as the mean.

Answer C is your answer.
7 0
3 years ago
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