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
krok68 [10]
3 years ago
11

Find the sum of the first 20 terms of the arithmetic sequence 4, 10, 16, 22....

Mathematics
1 answer:
hammer [34]3 years ago
3 0

n = 20

d = 6

a = 4

L = a + (n - 1)*d

L = 4 + (20 - 1)*6

L = 4 + 19*6

L = 118

Sum = (a + L)*n/2

Sum = (4 + 118) * 20/2

Sum = 122 * 10

Sum = 1220

You might be interested in
If i have 2 snickers and my friend takes one what would I have left?
Sauron [17]

Answer:

1

Step-by-step explanation:

5 0
3 years ago
<img src="https://tex.z-dn.net/?f=%28x%20-%207%29%28x%20-%205%29" id="TexFormula1" title="(x - 7)(x - 5)" alt="(x - 7)(x - 5)" a
Rufina [12.5K]

\huge\textsf{Hey there!}

\large\textsf{(x - 7) (x - 5)}

\large\text{DISTRIBUTE each of the numbers}

\large\textsf{x(x) + (-5)x + (-7(x) + (-7)(-5)}

\large\textsf{x(x) =  \bf x}\bf ^2

\large\textsf{x(-5) = \bf -5x}

\large\textsf{-7(x) = \bf -7x}

\large\textsf{(-7)(-5) = \bf 35}

\mathsf{x^2 - 5x -7x + 35}

\large\text{COMBINE the LIKE TERMS}

\mathsf{x^2 -(5x - 7x) + 35}

\mathsf{-5x -7x = \bf -12x}

\mathsf{x^2 - 12x + 35}

\boxed{\huge\text{Answer: \bf x}^2 \huge\text{\bf - 12x + 35}}\huge\checkmark

\large\text{Good luck on  your assignment and enjoy your day!}

~\frak{Amphitirite1040:)}

3 0
3 years ago
Read 2 more answers
3.452 × 100 =-------------
Lilit [14]

Answer:

345.2

Step-by-step explanation:

1: Move 3.452 to the end of the equation

(3.452 × 100) -> (3.452 × 100 = 3.452)

2: Since 100 has 2 zeros, move the decimal point 2 places to the right.

(3.452 × 100 = 3.452) -> (345.2)

Hope this helps!

7 0
3 years ago
Read 2 more answers
Kimi and Jordan are each working during the summer to earn money in addition to
cluponka [151]

Their earnings would be the same after 4 hours

Let the number of hours be x, and the weekly earning be y

So, the given parameters are:

<u>Kimi</u>

  • Earnings = $9 per hour
  • Weekly allowance = $8

So, the equation for Kimi's weekly earning is:

y =9x + 8

<u />

<u>Jordan</u>

  • Earnings = $7 per hour
  • Weekly allowance = $16

So, the equation for Jordan's weekly earning is:

y = 7x + 16

Equate both equations

7x + 16 = 9x + 8

Collect like terms

9x - 7x = 16 - 8

2x =8

Divide both sides by 2

x =4

Hence, their earnings would be the same after 4 hours

Read more about linear equations at:

brainly.com/question/13729904

7 0
2 years ago
Could really use some help <br>​
MrRissso [65]
Answer:
X= 114
I don’t know what y is labeling so I won’t be able to help there sorry
5 0
2 years ago
Other questions:
  • Write the equations of teh circle in standard form
    12·1 answer
  • Alexis washes 10 1/2 windows in 3/4 hour. At this rate, how many windows can she wash in one hour?
    6·2 answers
  • please help me! A cylindrical propane tank is filled for a cost of $0.03 per in3. The tank has a radius of 24 in. and a height o
    6·1 answer
  • The monthly fees for single rooms at five colleges are $370, $310,$380,$340, and $310, respectively what is the mean of these mo
    6·2 answers
  • Someone answer this please kinda struggling
    13·2 answers
  • The number 0.7777 repeats forever therefore it is irrational true or false?
    6·1 answer
  • Simify
    9·1 answer
  • The difference of the square of a number and 18 is equal to 3 times that number. Find the positive solution.
    12·2 answers
  • x^2+2x+7=21 the approximate value of the greatest solutoon to the equation, rounded to the nearest hundreth​
    5·1 answer
  • HELP but plzz dont waste the answers its a test
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!