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
8_murik_8 [283]
2 years ago
5

Find the sum of the first 30 multiples of 8.

Mathematics
1 answer:
Anna11 [10]2 years ago
3 0

Step-by-step explanation:

sum of the arithmetic sequence

a1 = 8

a2 = a1 + 8 = 8+8 = 16

...

an = 8×n

the sum of the first n elements of such a series is

n/2 × (2×a1 + (n - 1)×d]

with d being the difference between 2 consecutive elements (= the added constant).

so,

s30 = 30/2 × (2×8 + 29×8) = 15×(31×8) = 3720

You might be interested in
PLEASE HELP ME ASAP!!!!!
melisa1 [442]

Answer:

4.5

Step-by-step explanation:

7 0
3 years ago
Learning Task 1. Group the given equations into two based on observed common properties.
AnnZ [28]

Quadratic Equations in Single Variable

n²-3n+10=0

2x²+2x+1=0

25b²-16=0

f²-3f+2=0

1/3m +2m=4

a²=225

Linear Equation in single Variable

8-3k=12

5w+5=0

10u-5=8

Linear Equation in Two  Variable

2y-z=9

3r+2e=6

d=3e-7

<h3>What is an equation?</h3>

It should be noted that an equation simply means the expression that's used to show the relationship between the variables.

In this case, the equation has been grouped.

Learn more about equations on:

brainly.com/question/2972832

#SPJ1

Group the given equations into two based on observed common properties.

Equations

n²-3n+10=0

8-3k=12

2y-z=9

2x²+2x+1=0

25b²-16=0

3r+2e=6

5w+5=0

f²-3f+2=0

d=3e-7

1/3m +2m=4

10u-5=8

a²=225

6 0
1 year ago
Variable expression for 3x+7
evablogger [386]

Answer:

y=3x+7

Step-by-step explanation:

Where y is the dependent variable and x is the independent variable. When we change x , Y also changes.

3 0
3 years ago
We assume that the outcomes of successive trials in a binomial experiment are
NeTakaya

The <em>correct answer</em> is:


Independent.


Explanation:


The criteria for binomial experiments are:


A fixed number of trials.;

Each trial is independent of the others.;

There are only two outcomes; and

The probability of each outcome remains constant from trial to trial.


This means the outcomes are constant and independent.

6 0
3 years ago
10. Write an equation of your own that has no solution. Transform the equation to demonstrate that it has no solution
wolverine [178]
4(x+5)+6=2(2x+3)
4x+20+6=4x+6
4x+26=4x+6
Get letters on left...so subtract 4x from right and do same to left
26=6 
no solution because 26 does not equal 6
4 0
3 years ago
Read 2 more answers
Other questions:
  • X-1=5x+3x-8<br>help this confused child
    7·1 answer
  • 2(8+h) simplify using distrubtive property
    13·1 answer
  • Mrs. Jackson bought 6 ballon of juice for the party. Each gallon has 16 cups. If 3 cups of juice were left over,how many cups di
    15·2 answers
  • F(x)= x^2 -16x+63 find the x-intercepts of this function
    15·2 answers
  • Given: h(x)=-4x and g(x) = 3x +1<br> Find:<br> (nog)
    7·1 answer
  • A football team lost 3 yards on their first play and 6 yards on their second play. How many total yards did they lose?
    11·1 answer
  • Help please i can’t solve this
    14·2 answers
  • X- 2y = 3 5x + 3y = 2 The lines whose equations are shown intersect at which point? O (1, -1),(-1,1),(0'3/2)​
    13·1 answer
  • Is 1/5 the same as 5?
    5·1 answer
  • Please Help!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!