MATHEMATICS HIGH SCHOOL

A
-2
1
B.
1
-1
The midpoint of AB = ([?],[ ])

Answers

Answer 1

Answer:

Answer:

midpoint of AB = (-1/2 , 0)

Step-by-step explanation:

A(-2 , 1) = (x1 , y1)

B(1 , -1) = (x2 , y2)

midpoint formula:

=(x1 + x2/2 , y1 + y2/2)

=(-2 + 1/2 , 1 + (-1)/2)

=(-1/2 , 0/2)

(-1/2 , 0)

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How many sixths are in 3 and 1 third ??

Answers

1 whole thing = 6 sixths
3 whole things = 18 sixths

1 third of a whole thing = 2 sixths of it

3 wholes plus 1 third = 18 sixths plus 2 sixths = 20 sixths

Change 3 1/3 to improper fraction which equals 10/3. Then multiply numerator and denominator by 2
10/3 = 20/6, so there are 20 sixths in 3 and 1 third.

Samples of size n = 600 are taken from a telephone survey, and the mean age is taken for each sample. What is the distribution of the sample means?A. skewed to the left
B. normal (approximately)
C. not enough information provided
D. skewed to the right

Answers

The answer in B. For complicated statistics reasons the Central Limit Theorem states that, for sample sizes of above 25 (or 30 depending on the text!), the distribution of sample means is approximately normal regardless of the distribution of the parent distribution

Answer:

B. normal (approximately)

Step-by-step explanation:

Why is it so hard for people to learn math?

Answers

Answer:

I don't know, I kind of wonder the same thing sometimes. But everyone understands things at a different rate, so that's why I'm here helping people by answering their questions and doing my best to explain how I got there.

thank you for the free points though :)

Answer:

because they are over thinking easy thing and getting stressed out.

Step-by-step explanation:

this is what happened to me

You and two friends got jobs at stores in the mall. You earn $117.60 for 14 hours of work. Ty earns $148.50 in 18 hours. Kim earns $137.60 in 16 hours. Who has the highest pay rate in dollars per hour?

Answers

To answer this we will find out how much each person gets in an hour. To do this we will find the unit rate for each person and then check our work for each person. Then we will compare. Lets do it:-

You:-

117.60 ÷ 14 = 8.40
you earn $8.40 per hour.

CHECK OUR WORK:-

8.40 × 14 = 117.60
We were RIGHT!!

Ty:-

148.50 ÷ 18 = 8.25
Ty earns $8.25 per hour.

CHECK OUR WORK:-

8.25 × 18 = 148.50
We were RIGHT!!!

Kim:-

137.60 ÷ 16 = 8.60
Kim earns $8.60 per hour.

CHECK OUR WORK:-

8.60 × 16 = 137.60
We were RIGHT!!!

Money each person earns per hour:-

You:- $8.40
Ty:- $8.25
Kim:- $8.60

So, Kim has the highest pay rate in dollars per hour ($8.60).

Hope I helped ya!!

Ten times the sum of half a number and 6 is 8

Answers

Answer:
The number is -10.4

Explanation:
Assume that the number we are looking for is x.

Now, we want to get 10 times te sum of half the number and 6 and equate this expression to 8. Then we can solve for x

Let's take this step by step:
half the number is 0.5x
the sum of half the number and 6 is 0.5x + 6
10 times the sum of half the number and 6 is 10(0.5x +6)
10 times the sum of half the number and 6 equals 8 is 10(0.5x+6) = 8

Now we can solve for x as follows:
10(0.5x + 6) = 8
5x + 60 = 8
5x = 8 - 60
5x = -52
x = -52/5
x = -10.4

Hope this helps :)

The number we want to find is -10.4