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MrRa [10]
3 years ago
15

If m = 9 and z = -7 then what is m? x Z2?

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
3 0
I think it’s 9 x (-7)(2) which equals -126
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Formula for the area of a circle in terms of its circumference
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5 0
3 years ago
A soft drink machine outputs a mean of 27 ounces per cup. The machine's output is normally distributed with a standard deviation
postnew [5]

Answer: P(22 ≤ x ≤ 29) = 0.703

Step-by-step explanation:

Since the machine's output is normally distributed, we would apply the formula for normal distribution which is expressed as

z = (x - µ)/σ

Where

x = output of the machine in ounces per cup.

µ = mean output

σ = standard deviation

From the information given,

µ = 27

σ = 3

The probability of filling a cup between 22 and 29 ounces is expressed as

P(22 ≤ x ≤ 29)

For x = 22,

z = (22 - 27)/3 = - 1.67

Looking at the normal distribution table, the probability corresponding to the z score is 0.047

For x = 29,

z = (29 - 27)/3 = 0.67

Looking at the normal distribution table, the probability corresponding to the z score is 0.75

Therefore,

P(22 ≤ x ≤ 29) = 0.75 - 0.047 = 0.703

6 0
3 years ago
If x represents the amount Rita earns each week, which expression represents the amount she earns in a year?
Bezzdna [24]
52x because there are approximately 52 weeks in a year.
6 0
2 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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3 years ago
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