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
Sunny_sXe [5.5K]
2 years ago
9

List the first 10 triangular numbers

Mathematics
1 answer:
Paha777 [63]2 years ago
7 0
Answer:

0, 1, 3, 6, 10, 15, 21, 28, 36, 45
You might be interested in
In 2018, the population will grow over 700,000.The population of a city in 2010 was 450,000 and was growing at a rate of 5% per
Firlakuza [10]

Answer:

The year is 2020.

Step-by-step explanation:

Let the number of years passed since 2010 to reach population more than 7000000 be 'x'.

Given:

Initial population is, P_0=450,000

Growth rate is, r=5\%=0.05

Final population is, P=700,000

A population growth is an exponential growth and is modeled by the following function:

P=P_0(1+r)^x

Taking log on both sides, we get:

\log(P)=\log(P_0(1+r)^x)\\\log P=\log P_0+x\log (1+r)\\x\log (1+r)=\log P-\log P_0\\x\log(1+r)=\log(\frac{P}{P_0})\\x=\frac{\log(\frac{P}{P_0})}{\log(1+r)}

Plug in all the given values and solve for 'x'.

x=\frac{\log(\frac{700,000}{450,000})}{\log(1+0.05)}\\x=\frac{0.192}{0.021}=9.13\approx 10

So, for x > 9.13, the population is over 700,000. Therefore, from the tenth year after 2010, the population will be over 700,000.

Therefore, the tenth year after 2010 is 2020.

8 0
3 years ago
Help me please the picture below has the question and the answers
andrezito [222]

Answer:

ujeieuxqoqodqdgodoqdqohdhdpqhdpqhdpqjdwfw bdqoxhqohxoqd qoxhoqhxoqd qlxbxobqdl qxkq soq bc q dxo doq

try mo magsagot

6 0
2 years ago
2x-y=-2 <br><br> -x-2y=4 <br><br> estimate the coordinates
ValentinkaMS [17]
You can subtract the 2x to make it -y=-2x-2 and add the x to make it -2y=x+4. for elimination method multiply the equation (-2)-y=-2x-2. Hope this helps. You can also do substitution method
8 0
3 years ago
Ms. Wall will roll a single number cubes. What is the probability that she will roll an even number?
Arturiano [62]
Well single number, meaning from 1 - 9. She has a higher chance of getting an odd number for sure, as there are more odd numbers on the dice :) So, the ratio is 4:5 and fraction: 4/5. %<span>44.444 is your answer :) 

Thank you,
Darian D.</span>
4 0
3 years ago
Please help me with my math
Taya2010 [7]
3x + 22 is the equation that represents the perimeter of the triangle.  4x + 10 is the perimeter of the rectangle.  Setting the two equal:

3x + 22 = 4x + 10

and collecting like terms:

x=11

We find that the perimeter of both shapes is equal to 11 units.
8 0
3 years ago
Other questions:
  • Help........ this is hard just explain what to do
    12·1 answer
  • Solve the equation. 3x + 6 = 24
    9·1 answer
  • Determine the slope of the line graphed by 5y + 6x - 2 = 0
    12·1 answer
  • Jamestown Steel Company manufactures and assembles desks and other office equipment at several plants in western New York State.
    13·1 answer
  • 3/5, 1/2,5/7 as a common
    12·1 answer
  • How to graph f(x)=(x-2)^2+5
    10·2 answers
  • When factored completely, <br> X^3-7x^2-30x
    14·1 answer
  • There are 12 pieces of fruit in a bowl. Seven of the pieces are apples and two are peaches. What is the probability that a rando
    11·1 answer
  • Two boards are placed end to end to make a walkway. One board is 5 feet 11 inches long, and the other board is 4 feet 6 inches l
    8·1 answer
  • 8. Rachel and Sabine belong to different local gyms. Rachel pays $35 per month and a one-time
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!