2 years ago

1/5 + 2/3 How do I do this problem step by step?

Mathematics

1 answer:

Eduardwww [97]2 years ago

5 0

Answer:

<em>hey beautiful people the answer is provided in the pic below hope you have a great rest of your day </em>

Step-by-step explanation:

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Find the diagonal of a square whose sides are of the given measure.<br><br> Given = 3√2

Vadim26 [7]

Diagonal = √2 * side = 3√2 *√2 = 3*2 = 6

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3 years ago

if the side of a cube measures 1/3 ft, and there are 108 cubes in a box - with no gaps- what is the volume of the box?

Firlakuza [10]

Answer:108ft^3

Step by step solution: See photo

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2 years ago

A study was recently conducted to estimate the mean cholesterol for adult males over the age of 55 years. From a random sample o

Komok [63]

Answer: Correct critical value = 2.2622

Step-by-step explanation:

Confidence interval for population mean when population standard deviation is unknown:

$\overline{x}\pm t_{\alpha/2}\dfrac{s}{\sqrt{n}}$ , where $\overline{x}$ = sample mean, n= sample size, s= sample standard deviation, $t_{\alpha/2}$ = two-tailed t value.

As per given: n= 10

degree of freedom : df = n-1=9

$\overline{x}=242.6\\\\s=73.33\\\\\alpha=5\%=0.05$

Critical t-value : $t_{\alpha/2,df}=t_{0.05/2,9}=t_{0.025,9}=2.2622$

So, the 95 percent confidence interval estimate for the mean :

$242.6\pm (2.2622)\dfrac{73.33}{\sqrt{10}}\\\\=242.6\pm (2.2622)(23.19)\\\\\approx242.6\pm52.46\\\\=(242.6-52.46,\ 242.6+52.46)\\\\=(190.14,\ 295.06)$