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3 years ago

Write an inequality whose solutions are represented by the shaded part of the graph

Mathematics

1 answer:

guajiro [1.7K]3 years ago

8 0

Answer:

x > 3

Step-by-step explanation:

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To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine foun

Alenkasestr [34]

Answer:

The mean nicotine content with a 95% confidence interval is (25.52mg, 26.88mg).

Step-by-step explanation:

The sample size is 95.

The first step to solve this problem is finding our degrees of freedom, that is, the sample size subtracted by 1. So

$df = 95-1 = 94$

Then, we need to subtract one by the confidence level $\alpha$ and divide by 2. So:

$\frac{1-0.95}{2} = \frac{0.05}{2} = 0.025$

Now, we need our answers from both steps above to find a value T in the t-distribution table. So, with 94 and 0.025 in the t-distribution table, we have $T = 2.28$ .

Now, we find the standard deviation of the sample. This is the division of the standard deviation by the square root of the sample size. So

$s = \frac{2.9}{\sqrt{95}} = 0.2975$

Now, we multiply T and s

$M = T*s = 2.28*0.2975 = 0.6783$

For the lower end of the interval, we subtract the mean by M. So 26.2 - 0.6783 = 25.52mg

For the upper end of the interval, we add the mean to M. So 26.2 + 0.6783 = 26.88mg

The mean nicotine content with a 95% confidence interval is (25.52mg, 26.88mg).

4 0

3 years ago

Which table corresponds to the graph of the function below?

sweet-ann [11.9K]

B corresponds to the graph.

8 0

3 years ago

Read 2 more answers

Find the value of each variable

4vir4ik [10]

Answer:

x = 10 $\sqrt{2}$ , y = 10 $\sqrt{6}$

Step-by-step explanation:

using the sine and cosine ratios in the right triangle and the exact values

cos60° = $\frac{1}{2}$ , sin60° = $\frac{\sqrt{3} }{2}$ , then

cos60° = $\frac{adjacent}{hypotenuse}$ = $\frac{x}{20\sqrt{2} }$ = $\frac{1}{2}$ ( cross- multiply )

2x = 20 $\sqrt{2}$ ( divide both sides by 2 )

x = 10 $\sqrt{2}$

and

sin60° = $\frac{opposite}{hypotenuse}$ = $\frac{y}{20\sqrt{2} }$ = $\frac{\sqrt{3} }{2}$ ( cross- multiply )

2y = 20 $\sqrt{2}$ × $\sqrt{3}$ = 20 $\sqrt{6}$ ( divide both sides by 2 )

y = 10 $\sqrt{6}$

5 0

2 years ago

PLLLLLLLLLLLLLLLLLLLLLLLLLLLZZZZ HELP IVE BEEN STUCK ON THIS QUESTION

nydimaria [60]

Answer:

180 degrees is the answer

Step-by-step explanation:

The rule of an 180⁰ degree rotation is:

(x,y) -> (-x,-y)

So the x and y coordinates change from negative to positive or from positive to negative

4 0

3 years ago

Read 2 more answers

Find Si when time is 4 years rate is 3% and amount is 672

AveGali [126]

Answer:

$80.64

Step-by-step explanation:

Time = 4

Rate = 3

Principal Amount = 672

Using the Simple Interest formula:

SI = $\frac{P*R*T}{100}$ where

P -> Principal Amount,

R -> Rate, and

T -> Time

Substituting the given values into the formula:

SI =

$\frac{672*3*4}{100}\\\\= \frac{8064}{100}\\\\= $80.64\\$

<em>Hope this helps and be sure to have a wonderful time ahead at Brainly! :D</em>

3 0

3 years ago

Write an inequality whose solutions are represented by the shaded part of the graph​

Write an inequality whose solutions are represented by the shaded part of the graph