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3 years ago

A patient takes vitamin pills. Each day he must have at least 420 IU of vitamin A, 5 mg of vitamin

Mathematics

2 answers:

vagabundo [1.1K]3 years ago

6 0

Answer:

minimum cost is 70 cents when Greg buys 3 pill type 1, and 2 pills type 2.

Step-by-step explanation:

Ulleksa [173]3 years ago

5 0

Answer:

minimum cost is 70 cents when Greg buys 3 pill type 1, and 2 pills type 2.

Step-by-step explanation:

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The heights (in inches) and pulse rates (in beats per minute) for a sample of 40 women were measured. Using technology with the

Viktor [21]

Answer:

There is not sufficient evidence to support the claim that there is a linear correlation between the heights and pulse rates of women

Step-by-step explanation:

The correlation coefficient between the variables h(height in inches) and pulse rates (in beats per minute) is 0.202

Sample size n=40

Level of significane alpha = 0.01

Create null and alternate hypothesis as:

H0: r=0

Ha: r not equal 0

(Two tailed test at 1% significance level)

Sample r = 0.202

r difference = 0.202

test statistic t = $\frac{r\sqrt{n-2} }{\sqrt{1-r^2} } \\=\frac{0.202(\sqrt{38} )}{\sqrt{0.9592} } \\=\frac{1.25}{0.9794} \\=1.271$

df =n-2 =38

t critical value for 0.01 and df =38 is 2.704

Since our test statistic lies below 2.704, we accept null hypothesis

There is not sufficient evidence to support the claim that there is a linear correlation between the heights and pulse rates of women

7 0

4 years ago

Set questions need immediate help

kompoz [17]

60-35%=25%
50-35%=15%
25%=Math
35%=(mns)
15%=science

4 0

2 years ago

A warje population as a bell shaped distribution with a mean of 200 and a standard deviation of 40 which 1 of the following meas

Shalnov [3]

Answer:

300

(second answer choice)

Step-by-step explanation:

Recall that the Z-distribution is defined as :

$Z=\frac{X-\mu}{\sigma}$

and therefore, to obtain a Z = 2.5 when the mean value $\mu$ =200, and the standard deviation $\sigma$ = 40 , we solve for "X":

$Z=\frac{X-\mu}{\sigma} \\2.5=\frac{X-200}{40}\\40*2.5 =X-200 \\100 = X-200\\X=300$

6 0

3 years ago

Can someone help please?

Artist 52 [7]

The goal is to compare the fractions with the same denominator.

Find the LCD

6 × 2 = 12, 6 × 3 = 18

9 × 2 = 18

LCD = 18

$\frac{5}{6} = \frac{15}{18} 
$

$\frac{7}{9} = \frac{14}{18}$

Dan has more pocket money remaining, because $\frac{7}{9}$ is smaller than $\frac{5}{6}$ .

3 0

3 years ago

The 7 times the sum of a number and 6 IS 63

matrenka [14]

Answer:

Missing number = 3

Step-by-step explanation:

Let $x$ be the missing number. We have the following:

$7\cdot (6+x)=63,\\6+x=9,\\x=\boxed{3}$

4 0

3 years ago