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3 years ago

The sum of two consecutive integers is 125.find the two integers

Mathematics

1 answer:

rusak2 [61]3 years ago

4 0

Answer:

62 and 63

Step-by-step explanation:

125/2= 62.5 (Middle integer or mean of the 2 integers)

That means that the integers are 62 and 63

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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:

$\displaystyle\frac{\sigma}{\sqrt{n}} = \frac{13.1}{\sqrt{23}} = 2.731$

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

At the ice cream shop, there are 14 shakes sold for every 6 malts. What is the ratio of malts to shakes?

lawyer [7]

6:14 simplified is 3:7. Hope it helps!

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3 years ago

Approximately how many strides does it take to complete a marathon?<br> Choose 1 answer:

Viefleur [7K]

Male steps: 55,375
Female steps:62,926

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2 years ago

Read 2 more answers

0.3(3a-4)-0.05(8a)(-7a)

Anit [1.1K]

Answer:

2.8a²+0.9a - 1.2

Step-by-step explanation:

Given the expression 0.3(3a-4)-0.05(8a)(-7a)

Expand using the distributive law

0.3(3a-4)-0.05(8a)(-7a)

0.3(3a)-0.3(4)-0.05(8a)(-7a)

0.9a-1.2 - 0.05(8a)(-7a)

0.9a - 1.2 + 2.8a²

Rearrange

2.8a²+0.9a - 1.2

Hence the required expression is 2.8a²+0.9a - 1.2

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2 years ago

A car can drive 476 miles on 14 gallon

Degger [83]

What is the question?

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3 years ago