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
azamat
4 years ago
15

1. 2. 3. please help me

Mathematics
1 answer:
Phoenix [80]4 years ago
5 0
Answer: 4.98

Explanation: a1 is the number that is in front of the parenthesis. R is the number inside the parenthesis. N is the number you are trying to find. This is usually located on top of the sigma. Plug this all in a calculator, and you should get this answer.

Hope this helps!!!

You might be interested in
A coordinate axis is drawn with a parabola pointing up that has vertex of 0,3. Determine the intervals on which the function is
mel-nik [20]

Answer:

Option (2). Increasing x > 0; decreasing x < 0

Step-by-step explanation:

Equation of the parabola having vertex (0, 3) will be,

y = (x - 0)² + 3

y = x² + 3

To check the function is increasing or decreasing in the given intervals we will find the derivative of the function,

\frac{dy}{dx}=\frac{d}{dx}(x^{2}+3)

y' = 2x

For x < 0 Or x = -1

y' = 2(-1)

  = -2 < 0

Therefore, function is decreasing in x < 0

For x > 0 Or x = 1

y' = 2(1) + 3

  = 5 > 0

Therefore, function is increasing in x > 0

Option (2) is the answer.

8 0
4 years ago
This is the value of a variable for an entire population. It usually cannot be found directly.
Paul [167]
<span>This is the value of a variable for an entire population. It usually cannot be found directly:  the population mean.  We can approx. the population mean, or specify an interval in which it is likely to lie, but we generally cannot find the value of the pop mean.</span>
5 0
3 years ago
Read 2 more answers
Here is the right photo please help i need this before july 1st thank you
Reil [10]

Answer:

i hope this helps

Step-by-step explanation:

2x^{2} -16=0

+16        +16

2x^{2} =16

÷2    ÷2

x^{2} = 8

\sqrt{x^{2} }= \sqrt{8}

x= \sqrt{8}

-5x^{2} +9=0

-9          -9

-5x^{2}=-9

÷-5   ÷-5

x^{2} =1.8

\sqrt{x^{2} }= \sqrt{1.8}

x= \sqrt{1.8}

6x^{2} -15=27

+15        +15

6x^{2} =42

÷6   ÷6

x^{2} =7

\sqrt{x^{2} }= \sqrt{7}

x=\sqrt{7}

4 0
4 years ago
Answer number 8 please I’m begging u
Andrews [41]

Answer:

Probability - spinner 1

1/5 - not likely

Probability - spinner 2

1/8 - not likely

Step-by-step explanation:

8 0
3 years ago
A family pays $228 for theme park admission. They bought 14 tickets. Adult tickets cost $22 each and kids tickets cost $12 each.
Yanka [14]
Many answers. you have to be more specific
5 0
3 years ago
Read 2 more answers
Other questions:
  • Ax+By=C in slope intercept form is..... <br> ANSWER PLZ
    7·1 answer
  • A scuba diver is 33 feet below sea level, while a hiker is 64 feet above sea level directly overhead on the cliffs overlooking t
    14·2 answers
  • Find the area of this triangle..
    14·1 answer
  • PLZZ HELP ME WITH THIS
    8·1 answer
  • P is the midpoint of (DE) . (DE) is equal to 10x-2, and (PE) is equal to 4x+7. What is the length of (DP) ?
    7·1 answer
  • Which of the following has a y-intercept of 3 y=3x+2 or x=3or y=2x+3 or y=x
    14·1 answer
  • ASAP SOMEONE ANSWER THIS ILL GIVE YOU 20 POINTS PLZ!
    7·1 answer
  • Help me plzzzzzzzzzzzzzz
    11·1 answer
  • Troy has 5/6 ounces of sprinkles to make cupcakes. The recipe uses 1/4 ounce per dozen of cupcakes. Write an expression which ca
    5·1 answer
  • In triangle PQR, if P(3,4) is a vertex of the triangle and S(3,1) is middle point of QR , fimd the coordinates of centroid of th
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!