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
Flura [38]
3 years ago
9

How many distinct triangles can be drawn by using three of the seven dots below? (Two triangles are considered different if they

don’t share the same three vertices.)

Mathematics
1 answer:
jeka57 [31]3 years ago
5 0

Answer:

35triangles

Step-by-step explanation:

Given

Total distinct points = 7

If we are to form triangles using the dots,

Total points in a triangle = 3

Using the combination rule;

number of triangles formed = 7C3

7C3 = 7!/(7-3)!3!

7C3 = 7!/4!3!

7C3 = 7*6*5*4!/4!3!

7C3 = 7*6*5/6

7C3 = 7*5

7C3 = 35

Hence the amount of triangles that can be formed is 35triangles

You might be interested in
HHHEEELLLPPPPP MMMMMMEEEEEE!!!!!!<br><br> Which is the graph of the function g(x)=−x^2−4x−1?
Jlenok [28]

Answer:

its a, the first one

Step-by-step explanation:

i graphed it have a good day (:

8 0
3 years ago
Carmen reads 6/7 of a page in her library book in 12/5 minutes. At this rate, how many minutes does it take her to read the whol
kaheart [24]

Answer:

392 minutes

Step-by-step explanation:

She reads 6/7 of a page in 12/5 mins

She will read 1 page in (12/5)* (7/6) mins

She will read 140 pages in (12/5)*(7/6)*140 mins = 392 mins

4 0
4 years ago
6 1/2+n=12. please explain for me I dunno how to do this.
Temka [501]
Hey there!

Let's first define our goal. Our goal here is to be able to isolate the variable, n, and solve for it by moving everything to the other side. We see that we have two sides of the equation, and by using the property of equality which states that whatever you do to one side you do to the other and the expression remains equal, we can solve this equation.

It looks like the only thing we have on the left side with n is that 6 1/2. In order to get rid of it, we must subtract it from both sides, because the property of equality states you must do the inverse operation.

We have:

n = 12 - 6 1/2

n = 5 1/2

Hope this helps!
7 0
3 years ago
I need to make sure that A is correct…it’s between A and C…I think
leva [86]

Step-by-step explanation:

i think A is correct answer

4 0
3 years ago
1 (9x+2)=4+ 2 (6x+4)<br> 3 3
mote1985 [20]

Answer:i think

Step-by-step explanation:

1(9x+2)=4+2(6x+4)33

=9 x (396 x + 268) + 2 (396 x + 268)

=9 * 396 x x+2 * 396 x+9 * 268 x+2 * 268

=3564 x^2 + 3204 x + 536

(x^2+2)(x+8) (or) (x^3+5)(x+6) (or) (x+2)(x+8)(x+6)

6 0
3 years ago
Other questions:
  • Can a rational number to a rational power be rational
    9·1 answer
  • Mrs. Barlow has $164 to spend on prizes for her students. She orders the prizes from a website charges her $12 per prize along w
    11·2 answers
  • BRAINLIESTTT ASAP! PLEASE HELP ME :)
    11·1 answer
  • Enter the values for the highlighted variables that show how to subtract the rational expressions correctly: StartFraction 2 Ove
    14·1 answer
  • Trent told his friends it would take him 90 minutes to mow the lawn. It only took him
    5·1 answer
  • Nearest tenth of 221
    12·1 answer
  • The ratio of boys to girls in Ms. Graham’s class is 3 to 5. There are 20 girls in the class.
    14·2 answers
  • Which expression is equivalent to (x Superscript 27 Baseline y) Superscript one-third?
    10·2 answers
  • Mrs. Ramirez's income increased 140% last year. To model this percent, use ____________
    9·1 answer
  • 8(x-a) = 2(2a - x). Solve for. X
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!