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postnew [5]
3 years ago
8

Drinking 7 fluid ounces of milk provides 236.25 milligrams of calcium. How many fluid ounces of milk are required to provide 67.

5 milligrams of calcium? Round to the nearest tenth.
Mathematics
1 answer:
lyudmila [28]3 years ago
6 0
2 fluid ounces are required to provide 67.5 milligrams of calcium.
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Which of the following is an appropriate measure of central tendency to apply
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Answer:

Mean and Median

Step-by-step explanation:

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2 years ago
A researcher wishes to estimate the proportion of adults who have​ high-speed Internet access. What size sample should be obtain
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Answer: 8359

Step-by-step explanation:

The formula for sample size needed for interval estimate of population proportion :-

n=p(1-p)(\frac{z_{\alpha/2}}{E})^2

Given : The significance level : \alpha=1-0.95=0.05

Critical value : z_{\alpha/2}}=z_{0.025}=\pm1.96

Previous estimate of proportion : p=0.32

Margin of error : E=0.01

Now, the required sample size will be :-

n=0.32(1-0.32)(\frac{1.96}{0.01})^2=8359.3216\approx8359

Hence, the required sample size = 8359

5 0
2 years ago
Un deposito de agua tiene forma de prisma rectangular con los lados de la base de 25 y 20 metros. Calcula la altura que pueda co
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Answer:

La altura del depósito para que pueda contener 1000 metros cúbicos de agua es 2 m.

Step-by-step explanation:

Para calcular el volumen de un prisma rectangular, es necesario multiplicar sus 3 dimensiones: longitud*ancho*altura. El volumen se expresa en unidades cúbicas.

En este caso, se conoce la longitud y el ancho, cuyos valores son 25 y 20 metros. A su vez, se sabe que el depósito de agua debe contener 1000 m³. Entonces, siendo:

Volumen= longitud*ancho*altura

Y reemplazando los valores se obtiene:

1000 m³= 25 m* 20 m* altura

Resolviendo:

1000 m³= 500 m²* altura

altura=\frac{1000 m^{3} }{500 m^{2} }

altura= 2 m

<u><em>La altura del depósito para que pueda contener 1000 metros cúbicos de agua es 2 m.</em></u>

7 0
2 years ago
Given the data set (200,150,325,100,75) find the mean of the data set
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7 0
3 years ago
A wheel with radius 1 foot makes 1 revolution in 4 seconds. What is the linear velocity, in feet per second, of a point on the e
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Radius = r = 1 foot

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So,

w = 0.25 revolutions per second

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1 revolution = 2π radians

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Using the values, we can write:

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= π/2 feet per second

Therefore, the correct answer is option B

7 0
2 years ago
Read 2 more answers
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