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tensa zangetsu [6.8K]

3 years ago

13

james cut three squares lasagnas so that each piece was 1/5 of the lasagnas. how many pieces did james cut the lasagna into?

2 answers:

uysha [10]3 years ago

4 0

The answer is 15. Each one is 5 pieces and there are 3 of them. so 5 x 3 = 15

tia_tia [17]3 years ago

3 0

The equation is: 5 x 3 = 15.

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What is the slope of the line that passes through the points (2, 3) and (5, 4)?

lys-0071 [83]

Answer: The slope would be 1/3

Step-by-step explanation:

The point goes up one unit, adding 1 to 3, making 4, and the point goes three units right, adding 3 to 2, making 5.

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4 years ago

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Please help fast! AB=?

maria [59]

∠A = 180° - (63°+101°)=16°

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Leni [432]

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4 years ago

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You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question. Suppose that you h

stepan [7]

Answer:

(a) The expected score is 12.8

(b) The standard deviation is 3.2 and variance is 10.24

Step-by-step explanation:

Consider the provided information.

You are to take a multiple-choice exam consisting of 64 questions with 5 possible responses to each question.

Here n=64 p=1/5 and q=1-1/5=4/5

Part (a) we need to find the expected score on the exam.

Expected = np

Expected score = number of questions × P(right)

$Score = 64 \times \frac{1}{5} = 12.8$

Hence, the expected score is 12.8

Part (b) Compute the variance and standard deviation of x.

Standard Deviation: $\sigma =\sqrt{npq}$

Now calculate the standard deviation as shown:

$\sigma =\sqrt{64\times \frac{1}{5}\times \frac{4}{5}}$

$\sigma =\sqrt{\frac{256}{25}}$

$\sigma =\frac{16}{5}=3.2$

Variance: $\sigma^2 =npq$

$\sigma^2 =64\times \frac{1}{5}\times \frac{4}{5}$

$\sigma^2 =\frac{256}{25}$

$\sigma^2 =10.24$

Hence, the standard deviation is 3.2 and variance is 10.24

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3 years ago

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abruzzese [7]

Answer:

{87, 91, 64, 88, 74}

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3 years ago