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2 years ago

What is the z score of 2.13

Mathematics

2 answers:

RideAnS [48]2 years ago

7 0

42.60z. ...............

garri49 [273]2 years ago

3 0

The z score is 42.60z

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Martina chose a random sample of 10 bags of candy from two different Brands, A and B. All bags in the sample are the same size.

Alborosie

I found the dot plots that accompanies this problem.

Based on the plots, the statement that gives is a valid comparison of the number of candies in the bags of the two Brands is:

B. The number of candies in the bags from Brand B is greater and less consistent than the number of candies in the bags from Brand A.

Dots in Brand B are scattered and whereas dots in Brand A are not and they are more concentrated between 52 to 55 range.

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2 years ago

Please help me out with this!! BRAINLIEST AVAILABLE!!

lapo4ka [179]

Answer:

xy = 1

k = 79

Step-by-step explanation:

Question One

The first and third frames look to me to be the same. I'll treat them that way.

y = x^2 Equate y = x^2 to the result of 2y + 6 = 2x + 6

2y + 6 = 2(x + 3) Remove the brackets

2y + 6 = 2x + 6 Subtract 6 from both sides

2y = 2x Divide by 2

y = x

Now solve these two equations.

so x^2 = x

x > 0

1 solution is x = 0 from which y = 0. This won't work. x must be greater than 0. So the other is

x(x) = x Divide both sides by x

x = 1

y = x^2 Put x = 1 into x^2

y = 1^2 Solve

y = 1

The second solution is

(1,1)

xy = 1*1

xy = 1

Answer: A

Question Two

square root(k + 2) - x = 0

Subtract x from both sides

sqrt(k + 2) = x Square both sides

k + 2 = x^2 Let x = 9

k + 2 = 9^2 Square 9

k + 2 = 81

k = 81 - 2

k = 79

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2 years ago

José paid $47.00 for 4 movie tickets. Each ticket cost the same amount. What was the cost of each movie ticket in dollars

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Answer:

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Step-by-step explanation:

To find the cost of each,

you have to divide the amount paid by the amount bought

47.00 (amount paid) / 4 (amount bought) = 11.75 (total cost of each)

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The estimated price you will pay for lunch is $24.69.

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