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
Crank
3 years ago
5

Find the sum of the 30th term of the following terms 9,17,25

Mathematics
2 answers:
Alchen [17]3 years ago
4 0

Answer:the sum of the first 30 terms is 3750

Step-by-step explanation:

The formula for determining the sum of n terms of an arithmetic sequence is expressed as

Sn = n/2[2a + (n - 1)d]

Where

n represents the number of terms in the arithmetic sequence.

d represents the common difference of the terms in the arithmetic sequence.

a represents the first term of the arithmetic sequence.

From the information given,

n = 200 terms

a = 9

d = 8

Therefore, the sum of the first 30 terms, 30 would be

S30 = 30/2[2 × 9 + (30 - 1)8]

S30 = 15[18 + 29 × 8]

S30 = 15[18 + 232]

S30 = 15[18 + 232]

S30 = 3750

maria [59]3 years ago
3 0
The equation is arithmetic so y= 8x+1. plug in 30 for x. y= 8(30)+1 and y=241!
You might be interested in
Plzzzzzzzzz help thank u
Vikki [24]

Answer:

I think the answer is A

A is the answer

6 0
2 years ago
Read 2 more answers
12. A culture of bacteria in the lab doubles every 6 minutes. Assume the growth follows a continuous exponential
kondor19780726 [428]

Answer:

18 minutes

Step-by-step explanation:

if you divide 109 by 6, ya get 18.166666-

6 0
2 years ago
8x + 4 = 7(x+3)<br> I have to solve this and I have no clue how to solve it..can someone help me?
Lena [83]

Answer:

x = 17

Step-by-step explanation:

8x+4=7(x+3) - Equation

8x+4=7x+21 - Distribute the 7

8x-7x=21-4  - Isolate the x

x=17 - Answer

4 0
3 years ago
Which fraction is bigger 7/8 or 14/15 using lcm
Sever21 [200]
Between 7/8 and 14/15 the bigger value is the 7/8. When comparing to fractions you need look on the denominator of the fractions the smaller the denominator the larger the fraction. Thank you for posting your question here. Hope it helps.
4 0
3 years ago
Reports on a student’s ACT, SAT, or MCAT usually give the percentile as well as the actual score. The percentile is just the cum
DaniilM [7]

Answer:

The percentile is calculated with the following probability:

P(X

And using the z score we got:

P(X

So then we can conclude that 31 represent approximately the percentile 81 on the distribution given

He scored better than about 80.98 % of all MCAT takers.

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:

X \sim N(25.3,6.5)  

Where \mu=25.3 and \sigma=6.5

And for this case we have a score of 31

The percentile is calculated with the following probability:

P(X

And using the z score we got:

P(X

So then we can conclude that 31 represent approximately the percentile 81 on the distribution given

He scored better than about 80.98 % of all MCAT takers.

6 0
3 years ago
Other questions:
  • Subtract: (x^2 - 8x + 5)-(-3x^2 + 5x-9)
    14·1 answer
  • If f(x) = 2х2 + 1, what is f(x) when x = 3?<br> o 1<br> ООО
    8·1 answer
  • Solve the inequality 38&lt;4x+3+7-3x
    13·1 answer
  • Write an equation for the description.<br> Two-thirds a number x plus 4 is 6.
    10·1 answer
  • Which statement best describes her claim?
    13·1 answer
  • 12. Elly's credit card record for the last 7 months is below. Based on the information from the table, what will be her new bala
    7·2 answers
  • the expression below gives the cost of green beans(x) and cucumbers (y). what is the cause of 6 bunches of green beans and 4 cuc
    11·1 answer
  • Jesse drank 3/4 of liter of water Monday before going jogging. He drank 3/5 of a liter of water after his jog. How much water di
    15·1 answer
  • PLEASE HELP QUICK!!!!!!! WILL GIVE BRAINIEST!!!!!!!!
    14·2 answers
  • The radius of a cylinder is measured in meters what unit will the surface area be measured in
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!