Tiles. Show your work 5. X+4= 4

3a-3/a+6=9/6 what is a

Gekata [30.6K]

Answer:

a=1/2

Step-by-step explanation:

8 0

3 years ago

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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

4 years ago

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The cost of a bus for a field trip was split evenly between the 120 students going. But thee day before the trip, 30 more studen

Oliga [24]

Whoever does paper homework, This is what you do: Get your homework out. Example: Math or something Find a word problem and google the exact problem with no lower case at the beginning When you google that problem, You will most likely find PDFs. Look through the PDFs. One pdf may have only your problem's answer or one pdf may have answers for the whole page! or even a lesson

8 0

3 years ago

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Gandalf the Grey started in the Forest of Mirkwood at a point with coordinates (2,1) and arrived in the Iron Hills at the point

Pavlova-9 [17]

Answer:

(22/5, 11/5)

Step-by-step explanation:

Gandalf starts walking in the vector v = 4i + 2j, the slope of it must be 2/4 = 1/2.

So, calling the turn point (x,y) it must be in that vector, and the start point (2,1) must also be in this line, so:

slope = Δy/Δx

1/2 = (y - 1)/(x - 2)

2y - 2 = x - 2

2y = x

y = x/2

The line that makes a right angle with another is called perpendicular, and it has its slopes equal to the opposite of the inverse of the slope of the other line, so:

slope = - 2

The point (x,y) also pertences to it, such as the point (3,5), so:

-2 = (y - 5)/(x - 3)

y - 5 = -2x +6

y = -2x + 11

So, the turn point is the point where these two lines meet:

x/2 = -2x + 11

x = -4x + 22

5x = 22

x = 22/5

y = (22/5)/2

y = 22/10 = 11/5

So, the point that he makes the turn is (22/5, 11/5).

4 0

3 years ago

In Exercises 9-12, tell whether the lines through the given points are parallel, perpendicular, or neither. Justify your answer

tigry1 [53]

Answer:

They're parallel.

Step-by-step explanation:

The reason they're parallel is because they both have the same slope.

3 0

3 years ago

Tiles. Show your work5. X+4= 4​

Tiles. Show your work5. X+4= 4