Someone please help me ?

Marizza181 [45]

20 5/81 in its simplest form is 20 5/81.

20 5/81 originally looks like this ⇒ 1625/81

((20 * 81)+5)/81 = (1620+5)/81 = 1625/81 * this is an improper fraction because the numerator is greater than the denominator. Improper fractions must be converted to proper fractions. It will then become a mixed fraction.

 0020 5/81
81 | 1625
162 * 81 x 2
05

5 0

3 years ago

Identify the level of measurement of the data, and explain what is wrong with the given calculation. In a survey, the hair col

belka [17]

Answer:

This type of data are not measurement of anything , so it is not feasible to calculate their average(Mean)

Step-by-step explanation:T

The data are at the level of measurement that are Nominal

In level of nominal measurement, letters, numeric and alpha-numeric, words, symbols are used to classify data in the example stated.

Now we recall that,

Brown hair = 100,

Blond hair = 200,

Black hair = 300

Anything else = 400

Thus, 100, 200, 300, 400 are used as code numbers for hair colors and does not have any importance to their values numerically.

There is no arithmetic solutions such as average, total which cannot be solved using these numbers.

Therefore the average mean calculated is not feasible

7 0

3 years ago

Read 2 more answers

Kerry has 5 metal and 3 wood

Ray Of Light [21]

Expression

(5+3)+(5x2)=p

Solution

18

(Step-by-Step)

In this expression we simply have to use basic PEMDAS (Parenthesis Equation Multiplication Division Addition Subtraction) Order.

We start by working out the parenthesis

5 + 3 and 5 x 2

First let's work out our metal and wood paperweights

5+3=8

Simple enough, we have 8 metal AND wood paperweights

Now we have to work out our glass paperweights.

We have twice as many glass as we do metal PW's meaning we need to multiply the 5 metal paperweights by 2

5x2=10

This simplifies and boils our equation down to

8+10

simply solve and add the two and you have your answer

18

6 0

3 years ago

Find the volume of the solid of revolution formed by rotating about the x--axis the region bounded by the given curves.

amm1812

Answer:

$V = \frac{8\pi}{3}$

Step-by-step explanation:

For this case we are interested on the region shaded on the figure attached.

And we can find the volume with the method of rings.

The area on this case is given by:

$A(x) = \pi [f(x)]^2 = \pi r^2 = \pi [3x]^2 = 9\pi x^2$

And the volume is given by the following formula:

$V= \int_{a}^b A(x) dx$

For our case our limits are x=0 and x=2 so we have this:

$V = \pi \int_{0}^{2} x^2 dx$

And if we solve the integral we got this:

$V= \pi [\frac{x^3}{3}]\Big|_0^{2}$

And after evaluate we got this:

$V=\pi [(\frac{8}{3} )-(\frac{0}{3} )]$

$V = \frac{8\pi}{3}$

3 0

3 years ago

Dose anyone know the answer for these two i need help

Leviafan [203]

Answer:

g=-6, x=-1

Step-by-step explanation:

23=−4g−1

Step 1: Flip the equation.

−4g−1=23

Step 2: Add 1 to both sides

−4g−1+1=23+1

−4g=24

Step 3: Divide both sides by -4

−4/-4g =24/-4

g=-6

--------------------------------------------------------------------------------------------------------------

13=−4x+9

Step 1: Flip the equation

−4x+9=13

Step 2: Subtract 9 from both sides

−4x+9−9=13−9

−4x=4

Step 3: Divide both sides by -4

−4x/-4= 4/-4

x=−1

7 0

3 years ago