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3 years ago

Number 22 i need help

Mathematics

1 answer:

UNO [17]3 years ago

3 0

12 divided by 0.12 is 100

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The product of 5 and a number x is 14 . What is the value of x? 19/4 1/20 5/4 4 3/4

Gennadij [26K]

Answer:

14/5 or 2 4/5.

Step-by-step explanation:

The equation is 5x = 14 and we need to solve for x.

Divide both sides of the equation by 5:

5x / 5 = 14/5

x = 2 4/5.

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3 years ago

Write a equation of a line that is perpendicular to y=-10/7x-2 and passes throught (-10,-4)

Bess [88]

Answer: i wish i could help but you could prob look at questions that are simular

Step-by-step explanation:

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4 years ago

Radon: The Problem No One Wants to Face" is the title of an article appearing in Consumer Reports. Radon is a gas emitted from t

brilliants [131]

Answer:

a) $\bar{x}$ =4.63 md=4.55 mo= 1.9 b) Sample Standard Deviation≈ 2.58 Coefficient of Variation=55.72% Sample Range=6.9

Step-by-step explanation:

Mean

$a)\bar{x}=\frac{1.9+ 2.3+ 5.7+ 5.2+ 1.9+ 8.8+ 3.9+ 7.3}{8} =\frac{37}{8}=4.625=\approx 4.63$

For the Median, we have to order the entries. So, ordering it goes:

1.9 1.9 2.3 3.9 5.2 5.7 7.3 8.8

Since we have even entries $\frac{\frac{n}{2}+\frac{n}{2} +1}{2}=\frac{4th+5th}{2}=\frac{3.9+5.2}{2}=4.55$

mode

The mode for this data 1.9 1.9 2.3 3.9 5.2 5.7 7.3 8.8 is 1.9

Sample Standard Deviation

Here it is the formula to calculate it:

$_{x}=\sqrt{\frac{\sum (x_{i}-\bar{x})^{2}}{n-1}}\\ S_{x}=\sqrt{\frac{46.855}{7}}\approx 2.58$

Coefficient of Variation

CV is the quocient between sample Standard deviation over Mean and it is used to make comparisons.

$CV=\frac{S_x}{\bar{x}}*100%=\frac{2.58}{4.63} \approx 55.72%$

Range

The difference between the highest and the lowest value of this sample

8.8-1.9=6.9

4 0

3 years ago

21.6% can u please change this to a decimal and include the work like I had it in the little picture . Plss and thank you .

Nadya [2.5K]

Answer:

Decimal Form; 0.216

Step-by-step explanation:

If we are to convert to a decimal, move the decimal point 2 to the left, as such;

21.6 percent ( % ), ⇒ move decimal place two to the left,

Decimal Form; 0.216 

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3 years ago

Which expression is equivalent to (- 2c / d^2)^3

Marianna [84]

Answer:idk

Step-by-step explanation:

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3 years ago