Calories Used While Swimming for 30 Minutes

Mathematics

1 answer:

77julia77 [94]2 years ago

3 0

Answer:

C.
Bar graph

Step-by-step explanation:

WHen you have a lot of data like this, it is best that you use bar graphs. If it is incorrect I am sorry.

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14 - 2xy when x = -6 and y = 2.

Paraphin [41]

Answer:

$38$

Step-by-step explanation:

14 - 2xy when x = -6 and y = 2.

$14 - 2( - 6)(2) \\ 14 - 2 \times ( - 12) \\ 14 + 24 = 38$

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2 years ago

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36 irrational or rational and why?

bazaltina [42]

Rational number because for a number to be irrational it needs to have a decimal or be smaller than 1

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2 years ago

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I am a 3 digit positive number. The sum of my digits is 18. My middle digit is the product of -2 and -4. My first digit is 3^2.

Vlad1618 [11]

Let x be the first digit.
Let y be the second digit.
Let z be the third digit.

x+y+z=18

y= (-2)(-4)
y= 8

x= 3^2
x= 9

Therefore z=1.

The number is
= 100x+10y+z
= 100(9)+10(8)+(1)
= 981

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1 year ago

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Describe how the product of 0.4 × 2 would look on a ten-square grid. The product would have _____ squares shaded out of 10.

krek1111 [17]

0.8 squares shaded out of 10

You just do 4x2 which is 8

Then add the 0. In front of 8

Easy as that

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2 years ago

The brand name of a certain chain of coffee shops has a 53% recognition rate in the town of Coffeeton. An executive from the com

sukhopar [10]

Answer:

B) 0.287

Step-by-step explanation:

For each Coffeeton resident, there are only two possible outcomes. Either they recognize the brand name, or they do not. The probability of a resident recognizing the brand name is independent of other residents. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$