3 years ago

I don’t understand the question

Mathematics

1 answer:

Mariana [72]3 years ago

8 0

I can't see the question in the photo. Is it asking how many rotations the shape did?

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Mark spent a total of ₱60 in 6 days by spending half the amount he spent the previous day. What was the amount he spent on the f

motikmotik

Answer: 30.48

Step-by-step explanation:

Sum the series of 30.48 + (1/2)(30.48)+ (1/4)(30.48)+(1/8)(30.48)+(1/16)(30.48)+(1/32)(30.48)

Or use an Excel spreadsheet

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The Student Council of your school orders 11 pizzas for an event.

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Step-by-step explanation:

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0.75

Step-by-step explanation:

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2 years ago

The weights of the fish in a certain lake are normally distributed with a mean of 11 lb and a standard deviation of 6. if 4 fish

Alexus [3.1K]

Since the sample standard deviation is now known, we use the z-score test. The formula is given as:

z= (X – μ) / (s / sqrt(n))

Where,

X = sample mean = 8.6 lb to 14.6 lb

μ = population mean = 11 lb

s = population standard deviation = 6

n = sample size = 4

1st: Calculating for z when x = 8.6 lb

z = (8.6 – 11) / (6 / sqrt4)

z = - 0.8

Using the standard distribution table for z:

Probability (x = 8.6 lb) = 0.2119

2nd: Calculating for z when x = 14.6 lb

z = (14.6 – 11) / (6 / sqrt4)

z = 1.2

Using the standard distribution table for z:

Probability (x = 14.6 lb) = 0.8849

Therefore the probability that the mean weight will be between 8.6 and 14.6 lb:

Probability (8.6 ≤ x ≤ 14.6 ) = 0.8849 - 0.2119

Probability (8.6 ≤ x <span>≤ 14.6 ) = 0.673 (ANSWER)</span>

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3 years ago

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Step-by-step explanation: 6

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