Which of the following is a statement?

Mathematics

2 answers:

Afina-wow [57]4 years ago

5 0

Let's hope he wins! Is the awnser

victus00 [196]4 years ago

4 0

HE RUNS FAST. is the statement bc if it had exlamation point it would be exclamitory sentence and if it had question mark it qould be itterogitive sentece
sorry my spelling is bad

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Amanda is trying to determine the typical mass of eggs that are produced by each of her chickens. Which of the following will gi

Soloha48 [4]

What are the choices. I need them in order to answer with the best/correct answer.

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3 years ago

Help with this math picture :) worth 8 points

ipn [44]

Solving for x...
$\frac{1}{2} x+ \frac{1}{4} = \frac{15}{16} 
$

Times the $\frac{1}{2}$ , both the numerator and denominator, by 8 to get the denominator to 16.
Times the $\frac{1}{4}$ , both the numerator and denominator, by 4 to get the denominator to 16.

Then rewrite the problem,
$\frac{8}{16}x+ \frac{4}{16} = \frac{15}{16}$

now that the denominators are all the same, you can solve...
subtract the $\frac{4}{16}$ from both sides

you should get $\frac{8}{16} x = \frac{11}{16}$

Multiply both sides by 16 (it'll cancel both the 16 out making it go away)
8x = 11

divide each side by 8 to have the x alone

8x = 11
 8 8

 You should end with x = $\frac{11}{8}$ or 1.375

3 0

3 years ago

Construct a 95% confidence interval for the population mean, μ. Assume the population has a normal distribution. A random sample

GuDViN [60]

Answer: $(628.48,\ 661.52)$

Step-by-step explanation:

Given : Sample size : $n=16$ , which is a small sample (, 30) so we use t-test.

Sample mean : $\overline{x}=645 \text{ hours}$

Standard deviation : $\sigma = 31 \text{ hours}$

Significance level : $\alpha=1-0.95=0.05$

Critical value : $t_{n-1,\alpha/2}=2.131$

The confidence interval for population mean is given by :-

$\overline{x}\pm t_{n-1,\alpha/2}\dfrac{\sigma}{\sqrt{n}}\\\\=645\pm(2.131)\dfrac{31}{\sqrt{16}}\\\\\approx645\pm16.52\\\\=(645-16.52,\ 645+16.52)\\\\=(628.48,\ 661.52)$