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
Elza [17]
3 years ago
15

The formula n(n+1)/2

Mathematics
1 answer:
mafiozo [28]3 years ago
5 0
The answer is in the attached image

You might be interested in
How much money will you have if you started with $1200 and put it in an account that earned 7.3% every year for 10 years?
andrezito [222]
So an exponential equation is gonna be used for this problem. The formula for such is y=ab^x , in which the a variable is the initial value and the b variable is the growth/decay rate.

For this situation, 1200 is gonna be your a variable since you've started out with it. And as for your b variable, its gonna be 107.3%, or 1.073, since it's increasing.

Your equation should look like this: y=1200(1.073)^x and from here just plug in 10 into the x variable and solve.

Multiply (1.073)^10 (don't round answers until the end), and take that answer and multiply it with 1200, your answer should be $2427.61.

y=1200(1.073)^{10} \\ y=2427.61
8 0
3 years ago
I need help answering this question
Gekata [30.6K]

ANSWER:

[a] A linear regression line has an equation of the form Y = a + bX, where X is the explanatory variable and Y is the dependent variable. The slope of the line is b, and a is the intercept (the value of y when x = 0).

[b] In the equation of a straight line (when the equation is written as “y = mx + b”), the slope is the number “m” that is multiplied on the x, and “b” is the y-intercept (that is, the point where the line crosses the vertical y-axis). This useful form of the line equation is sensibly named the “Slope-intercepts form”.

NOTE: See picture attached.

7 0
3 years ago
There are 120 boys in Morris middle school. What is the total number
AnnZ [28]

Answer:

121

Step-by-step explanation:

trust me i got you wuth that 2016 throwback

8 0
3 years ago
Read 2 more answers
One week, Sarah earned $192.00 at her job when she worked for 8 hours. If she is paid the same hourly wage, how many hours would
vova2212 [387]

Answer:

17 hours

Explanation:

4 0
3 years ago
PLEASE HELP ME, ill give points! Im in the 7th grade
sdas [7]

Answer: y=-5 x=5

explanation: look at the number the x and y is on

4 0
2 years ago
Other questions:
  • Find the common ratio for the following sequence.<br><br> 27, 9, 3, 1, ...
    11·1 answer
  • Which ratio forms a proportion with 16/20 ? HELP ASAP!!!!
    10·2 answers
  • What are the solutions
    13·1 answer
  • What is the equation of the line that is parallel to the given line and has an x-intercept of -3?
    7·2 answers
  • A farmer has 6 buckets of blueberries and wants to sell them at a market stall. The farmer will charge $1.50 per pint. If each b
    7·2 answers
  • The answer is not A can someone plz help me I’m not understanding it thank you it would be appreciated
    5·1 answer
  • Formulate the situation as a system of two linear equations in two variables. Be sure to state clearly the meaning of your x- an
    9·1 answer
  • What is the equation of the line that passes through the point (-1,-5) and has a<br> slope of -1
    7·1 answer
  • A school newspaper says that 6% of the students surveyed, can wiggle their ears. How many students were surveyed ? If a school h
    11·1 answer
  • Must triangle EFG be congruent to triangle ABC? Justify.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!