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3 years ago

Use the properties of exponents to simplify the expression: 212 × 232

Mathematics

1 answer:

Tanzania [10]3 years ago

8 0

Answer:

Man's in Ce

Step-by-step explanation:

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Complete the equation to represent finding x, the greater integer.<br><br> x(x – ) = 143

mart [117]

Answer:

x would equal -11 or 13

Step-by-step Explanation:

x(x - 2) - 143 = 0

x^2 - 2x - 143 = 0

-2x + x^2 = 143

-143 + (-2x) + x^2 = 0

(x - 13)(x + 11)

x - 13 = 0

Add 13 to both sides

x = 13

x + 11 = 0

Subtract 11 from both sides

x = -11

3 0

3 years ago

The number of words defined on pages randomly selected from a dictionary are given below. Find the range and standard deviation

faltersainse [42]

Answer: The range of the set of numbers is 46 and the standard deviation is 14.44 .

Explanation:

In is given that the observations are 65, 59, 43, 43, 40, 63, 71, 77, 31, 64.

From given data it is noticed that the highest observation is 77 and the lowest observation is 31.

Range = Highest observation - Lowest observation

Range = 77 - 31 = 46

To find the standard deviation, first we have to find the mean.

$\text{Mean}={\frac{\text{Sum of observation}}{\text{Total number of observations}}$

Total of the observations is 556 and number of observation is 10.

$\text{Mean}=\frac{556}{10}=55.6$

Formula fr standard deviation is,

$\sigma =\sqrt{\frac{\sum (x-mean)^2}{n}}$

To find the above values form a table as shown below.

$\sigma =\sqrt{\frac{2086.4}{10}}$

$\sigma =\sqrt{208.64}$

$\sigma =14.44$

Therefore, the range of the set of numbers is 46 and the standard deviation is 14.44 .

7 0

3 years ago

Michelle had a $100. bill she wants to purchase paper pins ($20) and file covers ($20) and paper weights. each paper weight cost

slega [8]

Hi!

100/10 = 10

If Michelle only buys paper weights, she can buy 10 of them with $100

8 0

3 years ago

Read 2 more answers

Which shows 2.6x10^4 in standard notation

timofeeve [1]

Hi. The answer is 26000

7 0

4 years ago

A mosaic at the art museum is divided into 6 sections that each contain about the same number of tiles. There are 2,889 tiles to

AlexFokin [52]

Answer

Find out the how many tiles are in each section .

To prove

Let us assume that the number of tiles are in section are be x.

As given

A mosaic at the art museum is divided into 6 sections that each contain about the same number of tiles.

There are 2,889 tiles total in the mosiac .

Than the equation becomes

6 × x = 2889

$x = \frac{2889}{6}$

x = 481.5

Therefore the total number of tiles in each sections are 481.5 .

7 0

3 years ago