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tester [92]
3 years ago
13

A science class has

Mathematics
1 answer:
VMariaS [17]3 years ago
8 0
The probability that the teacher selects both boys from a seventh grader and eighth grader.
first calculate the probility that it is boy in each grade
7th
x = 7 / ( 7 + 3) = 7 / 10

8th
y = 2 / (2 + 2) = 1 / 2

so the probability
P = ( 7 / 10 ) ( 1 / 2 )
P = 0.35
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A company is planning to manufacture snowboards. The fixed costs are $ 100$100 per day and total costs are ​$55005500 per day at
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Answer:

The equation for total cost function is

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Step-by-step explanation:

Variable cost per per board =total cost per day-fixed cost per day/daily output

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4 0
3 years ago
What is the probability that a data value in a normal distribution is between a z-score of -1.32 and a z-score of -0.3? round yo
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Answer:

A

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The neaerest answer is A

4 0
3 years ago
F(x)=x2−x−1f, left parenthesis, x, right parenthesis, equals, x, squared, minus, x, minus, 1 What is the average rate of change
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