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2 years ago

Please help ASP!!!! A= positive, B=Negative, C=Zero

Mathematics

1 answer:

Evgen [1.6K]2 years ago

7 0

Answer:

B. Negative

Step-by-step explanation:

So first, we want to locate the variable.

y (x/y) = (y/1) (x/y)

= (xy/y)

= x

The y/y cancels out and now we know we need to find the sign of x. Because x is to the left of 0, it's negative. Anything to the left decreases and anything to the left of 0 is (-).

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A skateboarding park charges $7 per session to skate and $4 per session to rent safety equipment. Your friend rents safety equip

beks73 [17]

He spent $36 on safety equipment.
The total cost each time was $11, meaning he had to pay 9 times for each skate session. 4x9=36! ( 7x9= 63 so if you add 36 you'll get 99 just as a way of checking)

Do you watch/read pandora hearts?

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2 years ago

I do not need an explanation, just a simple angle number!

Murljashka [212]

Answer:

Step-by-step explanation:

a + 143 = 180 {Linear pair}

a = 180 - 143

a = 37

37 + 93 + b = 180 {Angle sum property of triangle}

130 + b = 180

b = 180 - 130

b = 40

c + b = 90

c + 40 = 90

c = 90 - 40

c = 50

d + 120 = 180 {Linear pair}

d = 180 - 120

d = 60

? = 60 + 40 {Exterior angle property of triangle}

? = 100

3 0

2 years ago

How to determine if Triangles are Congruent?

IRISSAK [1]

So basically what you have to do is first identify all of the sides or angles that equal eachother then you can see if you did a side side and side in a row etc, like 44 would be SAS because the vertical angles would be inbetween the two sides. 46 would be SSS because after you make the line in the middle for reflexive property you can see that there are three sides in a row. If this didnt help i recommend looking on Khan Academy

7 0

2 years ago

Determine the margin of error, m , of a 99% confidence interval for the mean IQ score of all students with the disorder. Assume

madreJ [45]

Answer:

E= 6.45

standard deviation is σ = 15,

The critical value is z(α/2) = 2.58.

Step-by-step explanation:

Margin error is the value that is lie above and below the sample.It gives percentage of numbers.Its is the product of critical value standard deviation and standard error of statistic.

General formula for the margin of error is

Margin of error = critical value × standard error of statistic

= $z \alpha /2$ × σ √n

z-value from two tailed is listed below:

From the table of standard normal distribution, probability value of 0.10.

row and column values gives the area to the two tail of z.

The positive z value is 2.58.

standard deviation is σ = 15,

The critical value is z(α/2) = 2.58.

after putting these vales we obtain the margin of error value that is

E= 6.45

7 0

2 years ago

A teacher gathered data about the number of hours her students spent studying for a test and their resulting test grades. She fo

In-s [12.5K]

Answer:

A. The data set would have a linear association.

C. The data set would have a positive correlation.

E. Every student earns 16 more points for each additional hour they study.

F. Students that study more tend to earn better grades on the test.

Step-by-step explanation:

Since in the question it is mentioned that the teacher obtained data with regard to the number of hours that students spent for their test and on their results. She found that on an average for each 30 minutes studied, the graded would rise by 8 points

Now this kind of relationship represents the linear association, positive correlation and study more earn better

Therefore the above three statements are true

5 0

2 years ago

Please help ASP!!!! A= positive, B=Negative, C=Zero​

Please help ASP!!!! A= positive, B=Negative, C=Zero