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3 years ago

Help, Im not smart and I don't get this.

Mathematics

1 answer:

daser333 [38]3 years ago

8 0

Answer:

The number of students enrolled at a college is 18,000 and grows 3% each year. Complete parts (a) through (e).

a) The initial amount a is 18,000.

b) The percent rate of change is 3%, so the growth factor b is 1 + 0.03 = 1.03.

c) To find the number of students enrolled after one year, you calculate 18,000 · 1.03.

d) Complete the equation y = 18000 · 1.03^2 to find the number of students enrolled after x years.

e) Use your equation to predict the number of students enrolled after 21 years.

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3 years ago

Which is the most efficient way to solve this equation?

Alona [7]

Answer:

subtracting 7 from 12

Step-by-step explanation:

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3 years ago

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For women aged 18-24, systolic blood pressures are normally distributed with a mean of 114.8 mm Hg and a standard deviation of

NNADVOKAT [17]

Answer:

0.0579 is the probability that mean systolic blood pressure is between 119 and 122 mm Hg for the sample.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 114.8 mm Hg

Standard Deviation, σ = 13.1 mm Hg

Sample size = 23

We are given that the distribution of systolic blood pressures is a bell shaped distribution that is a normal distribution.

Formula:

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

Standard error due to sampling:

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P(blood pressure is between 119 and 122 mm Hg)

$P(119 \leq x \leq 122) = P(\displaystyle\frac{119 - 114.8}{2.731} \leq z \leq \displaystyle\frac{122-114.8}{2.731}) = P(1.537 \leq z \leq 2.636)\\\\= P(z \leq 2.636) - P(z < 1.537)\\= 0.9958 - 0.9379 = 0.0579= 5.79\%$

$P(119 \leq x \leq 122) = 5.79\%$

0.0579 is the probability that mean systolic blood pressure is between 119 and 122 mm Hg for the sample.

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3 years ago

Jasmine’s grandma gave her $7 to spend at a yogurt stand. The frozen yogurt and toppings cost $0.45 per ounce. She also wants to

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Answer:

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Step-by-step explanation:

$7 - $2.50 bottle of water

= $4.50

$4.50 divided by $0.45

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3 years ago

Find the value of x.

BigorU [14]

Answer:

x=11 degrees

Step-by-step explanation:

45+4x+1=90

46+4x=90

4x=44

x=11

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3 years ago

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