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3 years ago

How does place value help me divide

Mathematics

2 answers:

bekas [8.4K]3 years ago

4 0

It helps you to divide becausey ou will know what place value it is in

Anna71 [15]3 years ago

3 0

Place value helps you divide because it helps you to know where to put the numbers

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You placed a 12% down payment on a new home. Given that the amount of the down payment was $42,655.12, determine the price of th

Soloha48 [4]

Answer:

355,459.33

Step-by-step explanation:

42,655.12/12 = 3554.59

3554.59*100 = 355459.33

7 0

3 years ago

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If the complex number x = 3 + bi and |x|2 = 13, which is a possible value of b?

Naddika [18.5K]

Answer:

A: 2

Step-by-step explanation:

EDGE 2021

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2 years ago

the performance score of 10 adults is recorded, and the results are 83 87 90 92 93 100 104 111 115 121 find the standard deviati

luda_lava [24]

Answer:

The standard deviation of the data set is $\sigma = 12.7906$ .

Step-by-step explanation:

The Standard Deviation is a measure of how spread out numbers are. Its symbol is σ (the greek letter sigma)

To find the standard deviation of the following data set

$\begin{array}{cccccccc}83&87&90&92&93&100&104&111\\115&121&&&&&&\end{array}$

we use the following formula

$\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} }$

Step 1: Find the mean $\left( \overline{X} \right)$ .

The mean of a data set is the sum of the terms divided by the total number of terms. Using math notation we have:

$Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}$

$Mean = \frac{Sum ~ of ~ terms}{Number ~ of ~ terms}=\frac{83+87+90+92+93+100+104+111+115+121}{10} \\\\Mean = \frac{996}{10} =\frac{498}{5}=99.6$

Step 2: Create the below table.

Step 3: Find the sum of numbers in the last column to get.

$\sum{\left(x_i - \overline{X}\right)^2} = 1472.4$

Step 4: Calculate σ using the above formula.

$\sigma = \sqrt{ \frac{ \sum{\left(x_i - \overline{X}\right)^2 }}{n-1} } = \sqrt{ \frac{ 1472.4 }{ 10 - 1} } \approx 12.7906$

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3 years ago

What is 90% of 20????

pickupchik [31]

Answer:

Step-by-step explanation:

Multiply 20 by 0.90 (that is 90%)

18 is the answer

Hope this helps :)

6 0

3 years ago

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Answer number 8 please I’m begging u

Andrews [41]

Answer:

Probability - spinner 1

1/5 - not likely

Probability - spinner 2

1/8 - not likely

Step-by-step explanation:

8 0

3 years ago