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3 years ago

True or false ? in an expierment the possible scores on the independent variable are plotted on the y axsis

Mathematics

2 answers:

Vera_Pavlovna [14]3 years ago

4 0

Answer:

False.

Step-by-step explanation:

Independent variable values go on the x axis, not the y axis.

Oduvanchick [21]3 years ago

4 0

Answer: true

Step-by-step explanation:

When doing experiments the factor that will change will go on the y axis. The variables that will never change will go on the x axis.

So variables such as time and dates will be on the X axis because they will never change.

Variables such as money, and anything else that will change will go on the y axis.

Something that helped me to remember this was that if you were going to build a house and use the letters X or Y as your base, what would you choose?

Hopefully it would be the X, because unlike the letter Y the X will not tilt to one side or the other. X will never change, unlike Y.

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At westwood Middleschool, 648 students responded to a survey asking about their favorite type of exercise. Twice as many student

nalin [4]

Answer:

The number of students chose jogging is 144, chose swimming is 72, chose yoga is 144 and chose biking is 288.

Step-by-step explanation:

Given:

At westwood Middle School, 648 students responded to a survey asking about their favorite type of exercise.

Twice as many students chose jogging as swimming.

The same number of students chose yoga as jogging.

Twice as many students chose biking as jogging.

Now, to find the number of students chose each type of exercise.

Let the students chose jogging be $w.$

The student chose swimming be $x.$

The student chose yoga be $y.$

And the student chose biking be $z.$

As per given in question:

Twice as many students chose jogging as swimming.

$w=2x\\\frac{w}{2} =x\\$ .........(1)

The same number of students chose yoga as jogging.

$y=w$ .........(2)

Twice as many students chose biking as jogging.

$z=2w.$ .........(3)

Total students surveyed = 648.

According to question:

$w+x+y+z=648.$

Putting the value from above equations (1), (2) and (3) we :

$w+\frac{w}{2} +w+2w=648$

$4w+\frac{w}{2}=648$

$\frac{8w+w}{2} =648$

$\frac{9w}{2}=648$

Multiplying both sides by 2 we get:

$9w=1296$

Dividing both sides by 9 we get:

$w=144.$

The students chose jogging = 144.

The student chose swimming:

$x=\frac{w}{2} \\x=\frac{144}{2} \\x=72$

The students chose yoga:

$y=w\\y=144.$

The student chose biking :

$z=2w\\z=2\times 144\\z=288$

Therefore, the number of students chose jogging is 144, chose swimming is 72, chose yoga is 144 and chose biking is 288.

4 0

3 years ago

Courtney is ordering nachos at a restaurant, and the server tells her that she can have up to three toppings: pico de gallo, oni

aalyn [17]

Answer:

$Probability = \frac{1}{9}$

Step-by-step explanation:

Given

Toppings: Pico de gallo, Onions and Steak

Required

The probability of getting Onions and Steak

The probability is calculated using:

$Probability = P(Onion)\ and\ P(Steak)$ --- because the events are independent

$P(Onion) = \frac{n(Onion)}{Total}$

$P(Onion) = \frac{1}{3}$

$P(Steak) = \frac{n(Steak)}{Total}$

$P(Steak) = \frac{1}{3}$

So, we have:

$Probability = P(Onion)\ and\ P(Steak)$

$Probability = P(Onion)\ *\ P(Steak)$

$Probability = \frac{1}{3} * \frac{1}{3}$

$Probability = \frac{1}{9}$

3 0

3 years ago

6. Solve for x. 10x - 4 = +(8x + 14)

Nuetrik [128]

Simplify brackets

10x - 4 = 8x + 14

Add 4 to both sides

10x = 8x + 14 + 4

Simplify 8x + 14 + 4 to 8x + 18

10x = 8x + 18

Subtract 8x from both sides

10x - 8x = 18

Simplify 10x - 8x to 2x

2x = 18

Divide both sides by 2

x = 18/2

Simplify 18/2 to 9

x = 9

3 0

3 years ago

Read 2 more answers

Which expression is equivalent to 6 Superscript 4 times 6 cubed? (6 times 6 times 6 times 6) (6 times 6 times 6) (6 6 6 6) times

malfutka [58]

The expression which is equivalent to 6 Superscript 4 times 6 cubed and posses same value as this expression is,

$6\times6\times6\times6)\times6$

<h3>What is the equivalent expression?</h3>

Equivalent expressions are the expression whose result is equal to the original expression, but the way of representation is different.

The given statement for the expression is 6 Superscript 4 times 6 cubed. This expression cab be written as,

$6^4\times6$

Suppose the equivalent expression of this equation is n. Thus,

$n=6^4\times6$

The 4 power of number 6 means that the number 6 should be multiplied 4 times.

$n=(6\times6\times6\times6)\times6$

Hence, the expression which is equivalent to 6 Superscript 4 times 6 cubed and posses same value as this expression is,

$6\times6\times6\times6)\times6$

Learn more about the equivalent expression here;

brainly.com/question/2972832

5 0

2 years ago

Simplify the expression where possible. (t 9) -8

makvit [3.9K]

Answer:

$\frac{1}{t^{72}}$ .

Step-by-step explanation:

To solve this problem, we need to simplify the expression $(t^{9})^{-8}$ .

We know that $(x^{a})^{b} = x^{ab}$

Therefore:

$(t^{9})^{-8} =t^{-72} =\frac{1}{t^{72}}$ .

7 0

3 years ago