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
SCORPION-xisa [38]
4 years ago
9

¿Cuantos triángulos hay?

Mathematics
2 answers:
artcher [175]4 years ago
8 0

Answer:

18

Step-by-step explanation:

Fórmula:

\frac{a(a + 1)(b)}{2}  =  \frac{3(3 + 1)(3)}{2}  =  \frac{3(4)(3)}{2}  =  \frac{36}{2}  = 18

nalin [4]4 years ago
5 0

Answer:

Yo veo 16. tal vez sea mas...

Step-by-step explanation:

You might be interested in
Please help with this problem, I don't understand how to work it out.
balandron [24]
The way to work it is to make a table in Excel (or equivalent program) with the data of budget for every year.

This is how it should look:

<span><span><span>year      budget </span> <span>
     0     265.1 </span> <span>
     1     277.5 </span> <span>
     2     288.9 </span> <span>
     3     303.0
  </span> <span>    4     311.3
</span><span>     5    320.4
</span><span>     6    334.5
</span><span>     7    351.2
  </span> <span>    8    368.2 </span> <span>
     9    381.7

Select both columns and inser a scatter plot graph (menu, insert, graph, scatterplot).

Now change the design of the graph to include the model. In this case I got y = 12.724 x + 262.92

x represents the number of year after 1990 and y represents the budget.

Now you can use the model to calcualte the budget when you know the year and to calculate the year when you know the budget.

For year 2001, x = 11 and y = 12.724 (11) + 262. 92 = 402.88 (which is 402,880)

 This is the same year for which the budget exceeds 400,000. </span></span></span>
6 0
4 years ago
X =<br><br> 6 2/3<br> 12<br> 9<br> please
sammy [17]

Answer:

4x5x4x7x4x9x2x1x43x125

Step-by-step explanation:

4 0
3 years ago
50 points!!!
fenix001 [56]

Answer: A

Step-by-step explanation: once you line the numbers up in order from least the greatest, the two middle numbers will be 12. Add 12 + 12 and you get 24. Then divide it by 2 and get 12. That is your median. Your 1st quartile will be 10. Your second quartile will be 15. Your minimum number is 4 and your maximum number is 18.

6 0
3 years ago
I feel so dumb but I need help :(
RoseWind [281]

Answer:

The expression is 8 x 5 + -26.

She now has 14 dollars.

We know that she paid 8 * 5 = $40, and we know that she got $26 back, so her net total of money she has is 40 - 26 = $14.

7 0
3 years ago
How to graph -4x+6y=12
ratelena [41]
First u would out it in slope intercept form which would be y=2/3x+2 then u would graph it
<span />
6 0
4 years ago
Other questions:
  • A man has 20 coins in his pocket, all of which are dimes and quarters. if the total value of his change is 425 cents, how many d
    7·1 answer
  • One side of a rectangle is 3 inches shorter than the other side, and the perimeter is 54 inches. What are the dimensions
    8·1 answer
  • Will mark Brainlyist, Hurry is timed, thank you for all those who help!!!
    15·2 answers
  • Many couples believe that it is getting too expensive to host an average wedding in the United States. According to a statistics
    7·1 answer
  • Does this graph represent a function? Why or why not?
    7·1 answer
  • Work out the missing numbers:<br>a) 1.5 x__=10.5<br>b)__X 1.3 = 1.56​
    9·1 answer
  • ice cream is served for dessert if Gio serves himself and 3 friends half a cup of ice cream how many total pints did Gio and his
    15·1 answer
  • WILL GIVE BRAINLIEST if you show your work
    15·2 answers
  • (LCD) 5/8 of and 1/20
    5·2 answers
  • Find the area of the parallelogram 300 in^230 in^260 in^250 in^2
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!