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Sladkaya [172]
3 years ago
6

What is a triangular number?

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
4 0
It's a number that counts the objects that can form an equilateral triangle.
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What is the mean absolute deviation of 8,1,3,3,9,6
Gennadij [26K]

Answer:

2

Step-by-step explanation:

6 0
2 years ago
Find 2 a for a = 3 1/4<br> 1) 6 1/2<br> 2) 6 1/4<br> 3) 23 1/4<br> 4) 5 1/2
Nataly_w [17]

Answer:

  1)  6 1/2

Step-by-step explanation:

Put 3 1/4 where "a" is and do the arithmetic.

  2(3 1/4) = 2·3 + 2·(1/4) = 6 2/4 = 6 1/2

4 0
4 years ago
Anybody knows the answer?
soldi70 [24.7K]

Hey!


RS = 15 and RT = 18. Subtract 18 from 15 to get your answer.


18 - 15 = 3


<em>That means your answer is 3</em>


\framebox{Answer = 3}

8 0
3 years ago
Read 2 more answers
Find the x and y intercepts of the graph of the equation y=x^2-5
mr_godi [17]

Answer:

x intercepts  -sqrt(5), + sqrt(5)

y intercept -5

Step-by-step explanation:

y = x^2 -5

to find the x intercept set y=0 and solve for x

0 = x^2-5

add 5 to each side

5 = x^2

take the square root of each side

+- sqrt(5) = sqrt(x^2)

x = +-sqrt(5)    there are 2 x intercepts since it is a quadratic


to find the y intercept set x=0 and solve for y

y = 0-5

y = -5

8 0
3 years ago
How many lines of symmetry does it have
Anarel [89]

Answer:

14

Step-by-step explanation:

3 diangonalss joined togeheter is call a symertry

4 0
3 years ago
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