3 years ago

What is the ninth triangular number?

Mathematics

1 answer:

earnstyle [38]3 years ago

5 0

27 I think..... Oh darn I'm replying to my self

You might be interested in

How do I do 2 root 20 - 3 root 5

Komok [63]

2√20=2((√4)(√5)=2((2)(√5)=4√5

now we have
4√5-3√5=1√5=√5

8 0

3 years ago

Helppppppp its math.....

m_a_m_a [10]

Answer:

1. X is added to 8

2. Subtract 14 by a number

3. Multiply 2 after you add 3 into a number.

4.. Twice a number plus 3

5. Divide 15 by a number

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Ted likes to run long distances. He can run 20 km in 95 minutes.He wants to know how many kilometers he will go if he runs the s

gladu [14]

You just have to cross multiply. 20 x 285 = 5700. 5700 / 95 = 60.

He will run 60km

5 0

4 years ago

Read 2 more answers

Describe the transformation from the graph of f(x) = x + 2 to the graph of g(x) = x − 7.

galina1969 [7]

The graph went down 9

7 0

3 years ago

5 1/3 + x = 2 1/2. Use least common denominator or easiest common denominator. Please work out

julia-pushkina [17]

Answer:

The answer is x = -17/6.

Step-by-step explanation:

Given:

5 1/3 + x = 2 1/2 . Using least common denominator.

Now, to solve the equation:

$5\frac{1}{3}+x=2\frac{1}{2}$

$=\frac{16}{3} +x=\frac{5}{2}$

Subtracting both sides from 16/3 we get:

$x=\frac{5}{2}- \frac{16}{3}$

Now, the least common denominator of 2 and 3 is 6.

So, we using this we calculate:

$x=\frac{5\times 3-16\times 2}{6}$

$x=\frac{15-32}{6}$

$x=\frac{-17}{6}$

Therefore, the answer is x = -17/6.

7 0

3 years ago