1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Talja [164]
4 years ago
12

Three noncollinear points determine a triangle. How many triangles can be formed with 8 points, no three of which are collinear?

Mathematics
1 answer:
Nataliya [291]4 years ago
5 0
Correct answer is A.

C^8_3= \frac{8\times7\times6}{3\times2\times1}=56
You might be interested in
Carson Trucking is considering whether to expand its regional service center in? Mohab, UT. The expansion requires the expenditu
cupoosta [38]

Answer:

NPV = $ 17,200,000

Step-by-step explanation:

Total expenditures = $ 11,000,000

Net cash inflow = $ 3,000,000 per year

total duration of cash inflow = 9 years

Thus, total cash inflow = $ 3,000,000 per year × 9 years = $ 27,000,000

salvage value = $ 1.2 million = $ 1,200,000

NPV = Salvage value + total cash flow - Expenditures

on substituting the values, we get

NPV = $ 1,200,000 + $ 27,000,000 - $ 11,000,000

or

NPV = $ 17,200,000

6 0
4 years ago
Help help help on marhswatch please help!!
Savatey [412]

7x-35<2x-10 distribut it

7x-2x<-10+35 collect like them

5x<25 divide both side by 5

x<5

6 0
3 years ago
A sample with a mean of m = 40 and a variance of s2 = 20 has an estimated standard error of 1 point. how many scores are in the
tamaranim1 [39]

The correct option is 20.

The score found for the sample is 20.

<h3>What is Standard error?</h3>

A standard error is a statistic that is applied to test the distribution of data. This metric is comparable to standard deviation. We can calculate the standard error if we know the sample size & standard deviation. It assesses the mean's precision.

Now, according to the question;

Sample mean; \bar{x}=40

Sample variance; s^{2}=20

Thus, s=\sqrt{20}=4.47

Standard error SE = 1

The amount of scores with in sample must be determined here.

The standard error formula is as follows:

S E=\frac{s}{\sqrt{n}}

We might rearrange the formula as follows:

\begin{aligned}\sqrt{n} &=\frac{s}{S E} \\n &=\left(\frac{s}{S E}\right)^{2}\end{aligned}

Substituting the values;

\begin{aligned}&n=\left(\frac{4.47}{1}\right)^{2} \\&n=19.98\end{aligned}

The sample's number of scores n = 19.98 = 20 (round up)

Therefore, the scores are in the sample is 20.

To know more about the Standard error, here

brainly.com/question/14467769

#SPJ4

3 0
2 years ago
How do you divide decimals
velikii [3]

Answer:

Step-by-step explanation:If the number you're dividing by has a decimal, move the decimal point all the way to the right counting the number of places you've moved it to. ...

Insert a decimal point in the quotient (answer) space, exactly above the decimal point in the number under the division bar.

7 0
4 years ago
The display gives the result of performing a quadratic regression on a data set where the inputs are speeds in miles per hour an
alina1380 [7]
Y = a x² + b x + c
y = 0.0473809524 · 20² + 2.221428571 · 20 - 0.005952381 = 
= 18.95236 + 44.42875 - 0.05952381 = 63.374978 ≈ 63.4
Answer: C ) 63.4 ft.
7 0
3 years ago
Other questions:
  • 2) Write an integer to best describe<br> the following situation: 6 feet below<br> sea level
    9·1 answer
  • What is the equation of the line that passes through (6, 1) and is perpendicular to the line y 3x+2? CI) At what angle do the li
    15·1 answer
  • Which of the following valued of x is not in the domain of f(x) = x+3 / x-7
    15·1 answer
  • On a graph of average speed, what happens to speed when the line is horizontal?
    8·1 answer
  • Will mark brainliest answer for fastest answer given
    13·2 answers
  • Someone listed all the numbers from 0 to 99999 in increasing order. Then he crossed out all the numbers where some other digit(s
    14·1 answer
  • Lucy purchased a prepaid phone card for $30. Long distance calls cost 21 cents a minute using this card. Lucy used her card only
    12·1 answer
  • A baseball diamond is a square with side 90 feet. A batter hits the ball and runs toward first base with a speed of 24 ft/sec. A
    9·1 answer
  • Maria is making a rectangular placemat that is 252 beads by 327 beads. How many beads are needed to make the placemat?
    5·2 answers
  • If f(x) = 7x+ 8, find f'(x).
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!