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
scoundrel [369]
3 years ago
10

Find the sum of the arithmetic series 28+28.4+...+42

Mathematics
1 answer:
stira [4]3 years ago
8 0
23.6
Thyyhggghhhhnnnnn
You might be interested in
Suppose the roots of the equation 2x^2−5x−6=0 are α and β.Find the quadratic equation with roots 1/α and 1/β.​
pochemuha

Answer:

6x² + 5x - 2 = 0

Step-by-step explanation:

Given

2x² - 5x - 6 = 0 ← in standard form

with a = 2, b = - 5, c = - 6, then

sum of roots α + β = - \frac{b}{a} = \frac{5}{2}

product of roots = \frac{c}{a} = - 3, then

sum of new roots = \frac{1}{\alpha } + \frac{1}{\beta }

= \frac{\beta+\alpha  }{\alpha \beta }

= \frac{\frac{5}{2} }{-3} = - \frac{5}{6}

product of new roots = \frac{1}{\alpha } × \frac{1}{\beta }

= \frac{1}{\alpha\beta  } = - \frac{1}{3}

Hence the required equation is

x² + \frac{5}{6} x - \frac{1}{3} = 0 or

6x² + 5x - 2 = 0 ( multiplying through by 6 )

                           

8 0
3 years ago
I don’t understand this problem can someone explain it and give the answe
Feliz [49]
Answer:

Explanation:

4x + 2x = 180 degree
6x = 180
x = 180/6
x = 30

Therefore, x = 30 degree
6 0
3 years ago
(3x - 2)<br> (10x - 11)<br> (3x + 1)<br> Find the value of X
FrozenT [24]
The value of x is the meaning of the word of the value of x=14
8 0
2 years ago
I need help plzzzzzzzzzzzz. I need you guys to show work too
Softa [21]

Answer:

22

Step-by-step explanation:

<h2>—Math</h2>

√(x+3) –4 = 1

√(x+3) = 1 +4

√(x+3) = 5

x + 3 = 5²

x = 25 –3

x = 22

6 0
3 years ago
-5: -2; 1;<br><br>write the next 3 terms​
Nataly_w [17]

Answer:

Next 3 of the sequence are 4, 7, 10

You are adding by 3.

-2 - -5= 3

-2 + 3=1

1+3=4

4+3=7

7+3=10

5 0
2 years ago
Other questions:
  • Can anyone help with please
    15·1 answer
  • 2/3 + -1/16= What is the fraction?
    14·1 answer
  • A football team must move the ball forward at least 10 yards from its starting point to make a first down.if the team has 3 loss
    7·1 answer
  • Add: (-6c^5 – 3c – 4) + (5c^5 + 2c – 4). A -2c^5 – c + 5 B-c^5 – c – 8 C-c^5 – ^5c – 8 D-4c^5 – 7c – 4
    12·1 answer
  • Hey can anybody help me
    12·1 answer
  • Ricky, Nathan, and Henry collect comic books. Ricky owns twice as many comic books as Nathan.
    11·1 answer
  • Find the area of this composite figure
    6·1 answer
  • 5. Write a function of the form f(x) = - + k with a vertical asymptote at x = -15 and a horizontal asymptote of y = -6.​
    5·1 answer
  • Christina is having a Super Bowl party with 7 of her celebrity friends. Kobe lives 32 miles from Christina. Will Smith has to dr
    11·1 answer
  • PLEASE ANSWER VERY IMPORTANT
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!