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
Marina CMI [18]
3 years ago
15

Please help ASAP!!! What is the sum of this series?

Mathematics
1 answer:
Katarina [22]3 years ago
6 0

Answer:

45

Step-by-step explanation:

Since this is only three terms

Find the three terms and add

j=1   3(1)^2+1 = 3+1 =4

j=2   3(2)^2+1 = 3(4)+1 =13

j=3   3(9)^2+1 = 27+1 =28

The sum is 4+13+28 =45

You might be interested in
The sale price of a bike is $189.50. The sale tax is 5%. What is the total price?
Roman55 [17]
It would be $947.50 because you would multiply $189.50 by 0.05.
3 0
3 years ago
Read 2 more answers
Which of the following shows the graph of y = l n (negative 2 x)
Doss [256]

Answer:

The first graph, answer choice A.

Step-by-step explanation:

4 0
3 years ago
Increasing the sample size while keeping the same confidence level has what effect on the margin of error? A. Increases the marg
DiKsa [7]

Answer:

C. Decreases the margin of error and hence increases the precision

Step-by-step explanation:

If we select a sample by Simple Random Sampling in a population of “infinite” size (a population so large that we do not know its size exactly), then the margin of error is given by

\bf E=\frac{ZS}{\sqrt{n}}

where  

<em>Z = The Z-score corresponding to the confidence level </em>

<em>S = The estimated standard deviation of the population </em>

<em>n = the size of the sample. </em>

As we can see, since n is in the denominator of the fraction and the numerator is kept constant, the larger the sample size the smaller the margin of error, so the correct choice is:

C. Decreases the margin of error and hence increases the precision

4 0
3 years ago
PLS HURRY ILL GIVE BRAINLIEST<br> Which graph of ordered pairs shows a proportional relationship?
sp2606 [1]

Answer:

pretty sure is the first one

Step-by-step explanation:

a proportional relationship is a straight line that passes through the origin

8 0
3 years ago
Read 2 more answers
Lea buys 6 model cars that each cost $15 she also buys 4 bottles of paint that each cost $11 how much does lea spends on model c
MissTica
Times the price of the model cars to the amount bought.

$15×6= 90.

Lea paid 90 dollars for the model cars.

Now, multiply the price of the paint to the amount bought.

$11×4= 44.

Lea paid 44 dollars for the paint.

Add both together. 90+44= 134.

Therefore, Lea paid $134 for the model cars and paint all together.

hope this helps!
8 0
3 years ago
Other questions:
  • Which box plot represents the data?<br><br> 135, 149, 156, 112, 134, 141, 154, 116, 134, 156
    10·1 answer
  • Jim's backyard is a rectangle that is 16 5/6 yards long and 10 2/5 yards wide. Jim buys sod in pieces that are 1 1/3 yards long
    14·1 answer
  • I need some help with fractions
    10·1 answer
  • Which clock shows a time after<br> 3:15 but before 4:00
    13·1 answer
  • Emily spent $55 from her savings on a New Dress explain how to describe the change in Emily's savings balance in two different w
    13·2 answers
  • summer break is almost around the corner. You and your family call an uber and need to know how many miles you can be driven. Ub
    15·1 answer
  • Linda and Roy are solving the equation 4x+3x-7=(1+4x)+5x. Linda uses a first step that results in 4x+7-3x=(1+4x)+5x Roy uses a f
    10·1 answer
  • How many millimeters are equal to one kilometer. Show your work
    13·1 answer
  • Wesley does this work to find the decimal equivalent of 2399. What does his work tell you about the decimal equivalent?
    10·2 answers
  • Ms. Yost has 20 boxes of markers. She buys 420% more boxes. How many boxes will she have in all?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!