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3 years ago

4.) 63 is what percent of 92?

Mathematics

2 answers:

sergey [27]3 years ago

4 0

Answer:

68.48%

Step-by-step explanation:

Artyom0805 [142]3 years ago

3 0

Answer:68.48

Step-by-step explanation:

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8(p + 5) = 24 solve for p.

PilotLPTM [1.2K]

P= -2 hope this helps :)

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3 years ago

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There is a theory that children wearing superhero costumes are more likely to harm themselves because of the unrealistic impress

____ [38]

Answer:

$Mean = 47$

$n = 6$

$s= 16.56$

$\sqrt n = 2.45$

$SEM = 11.55$

Step-by-step explanation:

Given: The above data

Solving (a): Mean of each group

Mean is calculated as:

$Mean = \frac{\sum x}{N}$

$Mean = \frac{55 + 31 + 58 + 20 + 47 + 37+68 + 32 + 85 + 69 +58 + 52+26 + 47 + 30 +35 + 53 + 43}{18}$

$Mean = \frac{846}{18}$

$Mean = 47$

Solving (b): The sample size of each group

This is the number of rows in each group.

Hence:

$n = 6$

Solving (c): Standard deviation (s)

This is calculated as:

$s = \sqrt{\frac{\sum (x - \bar x)^2}{N}}$

So, we have:

$s= \sqrt{\frac{(55 - 47)^2 + (31 - 47)^2 +......... + (43 - 47)^2}{18}}$

$s= \sqrt{\frac{4936}{18}}$

$s= \sqrt{274.22}$

$s= 16.56$

Solving (d): Square root of n

$\sqrt n = \sqrt 6$

$\sqrt n = 2.45$

Solving (e): SEM

This is calculated as:

$SEM = \frac{s}{\sqrt N}$

$SEM = \frac{47}{\sqrt{16.56}}$

$SEM = \frac{47}{4.07}$

$SEM = 11.55$

5 0

3 years ago

Can someone answer these pls

Vitek1552 [10]

the rate of growth will be 1.16

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3 years ago

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What is the volume of a hemisphere with a diameter of 8.9 cm, rounded to the nearest tenth of a cubic centimeter?

solniwko [45]

We're going through all the shapes.

A sphere has volume

$V_{\textrm{sphere}}= \frac 4 3 \pi r^3$

A hemisphere has half the volume and a radius is half a diameter.

$V= \frac 1 2 (\frac 4 3) \pi (\frac d 2)^3 = \frac{1}{12} \pi d^3$

$V = \frac{\pi}{12} (8.9)^3 \approx 184.6 \textrm{ cc}$

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3 years ago

Given: 3x-2/2=5<br>Prove: x=4<br><br>Complete the proof.

kolbaska11 [484]

Answer:

$\frac{3x - 2}{2} = 5 \\ multipy \: both \: side \: by \: 2\\ \frac{3x - 2}{2} \times 2 = 5 \times 2 \\ 3x - 2 = 10 \\ add \: 2 \: to \: both \: side \\ 3x - 2 + 2 = 10 + 2 \\ 3x - 0 = 12 \\ 3x = 12 \\ divide \: both \: side \: \frac{3x}{3} = \frac{12}{3} \\ x = 4$

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4 years ago