| x+8 | = 5<br><br><br> PLEASE, HELP ME!!!!!!! THE LINES ARE ABSOLUTE VALUE!!!!!

Slope of 2/3 and x-intercept of -3

Vilka [71]

Answer:

$\frac{2}{3}$ ,-3

Step-by-step explanation:

7 0

3 years ago

you are biking at a speed of 18 mph. You are 3 miles behind your friend who is breaking at a speed of 12 mph.write and solve an

Galina-37 [17]

18t=12t+3
18t-12t=3
6t=3
t=.5

5 0

3 years ago

Read 2 more answers

A drug company is considering marketing a new local anesthetic. The effective time of the anesthetic the drug company is current

vladimir2022 [97]

Answer:

$z=\frac{7.1-7.4}{\frac{1.2}{\sqrt{36}}}=-1.5$

Since is a left sided test the p value would be:

$p_v =P(z$

Comparing the p value and the significance level given $\alpha=0.1$ we see that $p_v$ so we can conclude that we have enough evidence to reject the null hypothesis, and the true mean is significantly lower than 7.4 minutes at 10% of significance

Step-by-step explanation:

Data given and notation

$\bar X=7.1$ represent the sample mean

$\sigma=1.2$ represent the population standard deviation

$n=36$ sample size

$\mu_o =7.4$ represent the value that we want to test

$\alpha=0.1$ represent the significance level for the hypothesis test.

z would represent the statistic (variable of interest)

$p_v$ represent the p value for the test (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the true mean i lower than 7.4, the system of hypothesis would be:

Null hypothesis: $\mu \geq 7.4$

Alternative hypothesis: $\mu < 7.4$

The statistic is given by

$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

Calculate the statistic

We can replace in formula (1) the info given like this:

$z=\frac{7.1-7.4}{\frac{1.2}{\sqrt{36}}}=-1.5$

P-value

Since is a left sided test the p value would be:

$p_v =P(z$

Conclusion

Comparing the p value and the significance level given $\alpha=0.1$ we see that $p_v$ so we can conclude that we have enough evidence to reject the null hypothesis, and the true mean is significantly lower than 7.4 minutes at 10% of significance

6 0

3 years ago

I don’t get it please can I have help :)

Irina-Kira [14]

7^2 x cube root 7
= 7^2 x 7^1/3
= 7^2+1/3
= 7^7/3

4 0

3 years ago

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Consider the function f(x) =x^x<br> . Find f(4)

Kay [80]

$\huge \boxed{\mathbb{QUESTION} \downarrow}$

f(x) = x^x, f(4) = ?

$\huge \boxed{\mathfrak{Answer} \downarrow}$

$\tt \: f(x) = {x}^{x} \\ \\ \tt \:Substitute \: the \: value \: of \: x \: as \: 4. \\ \\ \tt \:f(4) = {4}^{4} \\ \tt \: f(4) = 4 \times 4 \times 4 \times 4 \\ \tt \:f(4) = 16 \times 16 \\ \tt \:f(4) = \boxed{ \boxed{ \bf \: 256}}$

8 0

3 years ago

| x+8 | = 5 PLEASE, HELP ME!!!!!!! THE LINES ARE ABSOLUTE VALUE!!!!!