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
Anna11 [10]
2 years ago
8

HELP ME WITH MY MATH ASSIGNMENT, WILL GIVE ANYTHING, DUE TOMORROW! :(

Mathematics
2 answers:
nataly862011 [7]2 years ago
4 0

Answer:

Answer is 225.

We have to find the sum of 15 terms of the series

sigma 1 to 15 (2n-1)

This can be split as per summation terms as

sigma 2n - sigma 1

sigma 2n can again be simplified by taking 2 outside

sigma 2n= 2 times sum of natural numbers of 1 to 15

= 2(15)(16)/2= 240

sigma 1= 1+1+...15 times= 15

Hence final answer is

= 2 times sigma n - (n) = 240-15 = 225.

Step-by-step explanation:


AfilCa [17]2 years ago
4 0

Step-by-step explanation:

Question 2) Answer

Use Arithmetic Series Formulas:

a) Nth term = F + (N - 1) x D, where F=First term, N=Number of terms, D=Common difference

6th row = 23 + (6 - 1) x -3

            = 23 + (5) x -3

            = 23 + (-15)

            = 8 - number of boxes in the top row.

b) Sum = N/2[2F + (N - 1) x D]

            = 6/2[2*23 + (6 - 1) x -3]

             = 3  [46  +    (5) x -3 ]

             = 3  [46  +      -15 ]

             = 3  [ 31 ]

             = 93 - total number of boxes in the entire display.

Question 3) Answer


Sum of the 8 first terms of the geometric progression with the first term 50 and the common ratio of 2:


=50 + 5*2 + 50*2^2 + . . . + 50*2^7

= 50*(1 + 2 + 2^2 + . . . + 2^7) = 50*(2^8-1)

= 50*(256-1) = 50*255

= 12750 Answer


I am also attached the solved question of this assignment please check and enjoy. Thanks

You might be interested in
Which expression is equivalent to .02m(n - 5) - .02(m + 10)? A) .02mn - .12m - 0.2 B) .02mn + .12m - 0.2 C) .02mn - .12m + 0.2 D
VikaD [51]
The correct answer is A)<span>.02m(n - 5) - .02(m + 10)</span>
7 0
2 years ago
Read 2 more answers
Complete a table with at least 5 points then graph the following quadratic on the coordinate plane. Identify all zeros.y = -2x2
Anna [14]

Answer:

See attached

Step-by-step explanation:

Given function:

  • y = -2x² + 5x + 8

Table and graph are attached

Zeros are included in the graph

<u>Zero's are obtained:</u>

x = 0 ⇒ y = 8

y = 0 ⇒  Solving quadratic equation

  • -2x² + 5x + 8 = 0
  • x = (-5 ± √(25 + 2*4*8))/-4
  • x = 3.608
  • x = -1.108

So zeros are (0, 8), (3.608, 0) and (-1.108, 0)

3 0
3 years ago
What is 6 divided by 1/2 equal
Gala2k [10]
6 / (1/2) = 6*2 = 12
7 0
2 years ago
Patrick is keeping track of how far he jogs each morning.
katrin2010 [14]

Answer:

21:50

Step-by-step explanation:

We need to find the ratio of 420 m to 1 km.

We know that,

1 km = 1000 m

So,

The ratio becomes,

\dfrac{420\ m}{1\ km}=\dfrac{420\ m}{1000\ m}\\\\=\dfrac{42\ m}{100\ m}\\\\=\dfrac{21}{50}

So, the required ratio is 21:50.

5 0
3 years ago
I think its B can I get someone's opinion. Its not too hard. Plzzz Help.
shusha [124]

Answer:

I agree with you,I also think its B

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • The 7 digit numbers 74A52B1 and 326AB4C are each multiples of 3. Which of the following could be the value of C?
    7·1 answer
  • The staircase is 50 feet high. You have to go around 5 times to get to the top. Each time you go around, you walk 30 feet and ge
    11·1 answer
  • HELP! A daycare purchases two type of snacks, granola bars and fruit rolls. One week, they purchase 10 packs of granola bars and
    8·2 answers
  • What is the value of x? <br>​
    10·1 answer
  • How do i find the slope of 3x-2y= 3
    10·1 answer
  • How can I do this with the function (x+2)/x-3
    5·1 answer
  • URGENT, LAST 2 QUESTION!! WILL GIVE BRANLIEST!!! AT LEAST TAKE A LOOK!!
    9·1 answer
  • 3^x=1/9<br><br> What does x equal?
    8·1 answer
  • A movie rental store chain membership fee of $10 plus $1.50 per movie rented what is the password I mean it shows the cost of a
    5·1 answer
  • The regular price of a CN Tower Souvenir was $32, During its sale, The price was reduced down by $24, Find the percent discount
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!