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
makvit [3.9K]
3 years ago
5

What is the value of the arithmetic series below?

Mathematics
2 answers:
MariettaO [177]3 years ago
4 0

Answer:

A

Step-by-step explanation:

E2020

RoseWind [281]3 years ago
3 0

Answer:

- 494

Step-by-step explanation:

Breaking down the summation into it;s component parts

= 4k - \frac{3}{2} k(k + 1) ← substitute k = 19

= (4 × 19 ) - 1.5 × (19 × 20)

= 76 - (1.5 × 380)

= 76 - 570

= 494

You might be interested in
Which of the following is the best tool to measure the width of a chair? A. yardstick B. measuring tape C. ruler
denis-greek [22]
And ruler because it has the specific measurements on it
5 0
3 years ago
Evaluate the expression shown for x=12 -5/6×+7
Tanzania [10]
Evaluate the expression shown for x=12 -5/6×+7

-5/6(12)+7
-10+7=-3
-3
4 0
3 years ago
Read 2 more answers
What is the y-intercept of the following equation?<br> - 3y + x = 18<br> (12 points)
dexar [7]

Answer:

(0, -10/3)

the -10 is over the 3 in the form of a fraction

6 0
3 years ago
The function f(x) = x3 – 8x2 + x + 42 has zeros located at 7, –2, 3. Verify the zeros of f(x) and explain how you verified them.
Ksenya-84 [330]

Answer:

Step-by-step explanation:

At first you need to turn roots into factors and then multiply the

then you have

f(x) = a(x + 2)(x -5)^2

f(x) = a(x + 2)(x^2 - 10x + 25)

f(x) = a(x^3 - 8x^2 + 5x + 50)

You can use either synthetical or the factor

theorem

f(-2) = a(-8 - 8(4) + 5(-2) + 50) = a(0) = 0.. check, f

=-2

€(5) = a(125 - 8(25) + 5(5) + 50) = a(0) = 0 check, f

= 5 works

Then divide it to the the second multi

And you should get x^2 - 3x - 10 = (x - 5)(x + 2),

where the other two zeros are X =5 , and x=-2

8 0
3 years ago
What is the mean absolute deviation for the data set? {10, 15, 18, 20, 24}
Arlecino [84]

Answer:

3.92

To find the mean absolute deviation of the data, start by finding the mean of the data set.

Find the sum of the data values, and divide the sum by the number of data values.

Find the absolute value of the difference between each data value and the mean: |data value – mean|.

Find the sum of the absolute values of the differences.

Divide the sum of the absolute values of the differences by the number of data values.

7 0
3 years ago
Read 2 more answers
Other questions:
  • The light intensity of a certain bran of light bulb is modeled by the fiction f(w) =1.1 w where w represent watts. Which stateme
    10·1 answer
  • The endpoints of MP are M (1,4) and
    14·1 answer
  • Midpoint(-5,-20) and endpoint (-1,-11) Find other endpoint
    10·1 answer
  • HEEEEEEEELP WILL GIVE BRAINLIEST
    11·1 answer
  • Graph the equation. y = 4x – 3
    9·1 answer
  • I don’t understand my homework
    6·2 answers
  • HELP PLEASE Which of these mappings is a function?
    15·1 answer
  • Mario makes 30 calls in 15 hours. How many calls can he make in 3 hours?
    13·2 answers
  • A telemarketer calls people and tries to sell them a subscription to a daily newspaper. On 24% of her calls, there is no answer
    5·1 answer
  • How am I supposed to find the volume to something if I only know the height?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!