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4 years ago

What’s the answer to this

Mathematics

1 answer:

Alchen [17]4 years ago

6 0

Answer:

Step-by-step explanation:

y=1/x, the reciprocal is the same. Reciprocal would be reflected across y=x

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Muriel has kept track of her income and expenses for the week in the spreadsheet below. How much was Muriel's restaurant bill? a

professor190 [17]

Answer:

The answer to this question is option B which is $42.55.

The above statement shows that Muriel has kept track of her income and also expenses for the week in the spreadsheet.

By using the spreadsheet, you can easily calculate the restaurant bill of Muriel. The Muriel’s restaurant bill is calculated as $42.55

5 0

3 years ago

Read 2 more answers

darren jogs 425 meters and runs 650 meters in one workout.he performs this workout three times .what is the total distance cover

Igoryamba

425+650=1075 1075x3=3225

4 0

4 years ago

Read 2 more answers

CAN SOMEONE ACTUALLY HELP ME LOL

sdas [7]

A- 5
B- 4
C- 3
D- 8
E- -4
I think these are right hopes it help

5 0

3 years ago

Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate

yKpoI14uk [10]

Answer:

a) 0.5588

b) 0.9984

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 24

Standard Deviation, σ = 6.4

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

Formula:

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

a) P(score between 20 and 30)

$P(20 \leq x \leq 30) = P(\displaystyle\frac{20 - 24}{6.4} \leq z \leq \displaystyle\frac{30-24}{6.4}) = P(-0.62 \leq z \leq 0.94)\\\\= P(z \leq 0.94) - P(z < -0.62)\\= 0.8264 - 0.2676 = 0.5588 = 55.88\%$

$P(20 \leq x \leq 30) = 55.88\%$

b) Sampling distribution

Sample size, n = 22

The sample will follow a normal distribution with mean 24 and standard deviation,

$s = \dfrac{\sigma}{\sqrt{n}} = \dfrac{6.4}{\sqrt{22}} =1.36$

c) P(mean score of sample is between 20 and 30)

$P(20 \leq x \leq 30) = P(\displaystyle\frac{20 - 24}{1.36} \leq z \leq \displaystyle\frac{30-24}{1.36}) = P(-2.94 \leq z \leq 4.41)\\\\= P(z \leq 4.41) - P(z < -2.94)\\= 1 - 0.0016 = 0.9984 = 99.84\%$