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3 years ago

If you know this answer can you help lol

Mathematics

1 answer:

AnnyKZ [126]3 years ago

4 0

The answer is C whole

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Kelsey has 1/3 of a Hershey Bar. Eric wants 3/5 of this amount, How much will Eric get?

Ainat [17]

Answer:

1/5

Step-by-step explanation

1/3= 0.333333333

3/5 of 0.333333333= 0.2

0.2 as a fraction is 1/5

5 0

2 years ago

n HP laser printer is advertised to print text documents at a speed of 18 ppm (pages per minute). The manufacturer tells you tha

Dominik [7]

Answer:

0.321 is the probability that their mean printing speed of the sample is greater than 17.99 ppm.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 17.39 ppm

Standard Deviation, σ = 4.25 ppm

Sample size = 11

We are given that the distribution of printing speed is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}$

P(printing speed of the sample is greater than 17.99 ppm.)

P(x > 17.99)

$P( x > 17.99) = P( z > \displaystyle\frac{17.99-17.39}{\frac{4.25}{\sqrt{11}}}) = P(z > 0.468229)\\\\P( z > 0.468229) = 1 - P(z < 0.468229)$

Calculating the value from the standard normal table we have,

$1 - 0.679 = 0321= 32.1\%\\P( x > 17.99) = 32.1\%$

Thus, 0.321 is the probability that their mean printing speed of the sample is greater than 17.99 ppm.

8 0

3 years ago

. If 1: x is equivalent to 64 : 25, find x

alexandr1967 [171]

Answer:

x=25/64

Step-by-step explanation:

by simple substitution

7 0

3 years ago

Use the grouping method to factor the polynomial below completely.<br> x - 3x² + 5x - 157

Levart [38]

Answer:

-3x^2+6x-157

Step-by-step explanation:

8 0

3 years ago

The Hiking Club plans to go camping in a State park where the

svetlana [45]

Answer:

0.013

Step-by-step explanation:

Use binomial probability:

P = nCr pʳ (1−p)ⁿ⁻ʳ

where n is the number of trials,

r is the number of successes,

and p is the probability of success.

Given n = 6, p = 0.69, and r = 0 or 1:

P = ₆C₀ (0.69)⁰ (1−0.69)⁶⁻⁰ + ₆C₁ (0.69)¹ (1−0.69)⁶⁻¹

P = (1) (1) (0.31)⁶ + (6) (0.69) (0.31)⁵

P = 0.013

3 0

3 years ago