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]
3 years ago
8

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

Mathematics
2 answers:
nataly862011 [7]3 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]3 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
What is the common ratio between successive terms in the sequence
wel
Let a₁ , a₂ , a₃ , a₄ ,... .be a given sequence.
The common ratio of this sequence is the following:
 a₂/a₁ = a₃/a₂ = a₄/a₃ = r

Example: 5, 25, 125, 625, ...The common ration  is:
 25/5 = 125/25 = 625/125 = 5. So r=5 is the common ratio
7 0
3 years ago
Graph the data below and then answer the questions that follow. year 1=$20,000, year 2=$21,750, year 3=$23,500, year 4=$25,250,
Mariana [72]

Answer:

Since the difference between the value for each year is constant, this is an arithmetic sequence.

Step-by-step explanation:

Year 2 - Year 1 = 21,750 - 20,000 = 1,750

Year 3 - Year 2 = 23,500 - 21,750 = 1,750

Year 4 - Year 3 = Year 5 - Year 4 = 1,750

3 0
3 years ago
Which inequalities are true? Check all that apply.
a_sh-v [17]

Answer:

THE ANSWR IS THAT THREE FIFTHS

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Triangle ABC is reflected over the X axis. TRIANGLE ABC has points A(10,2) B(9,5) C(6,4). What is the C coordinate
gavmur [86]
1. Let A(a,b) be a point in the coordinate axis. The reflection of A with respect to the x-axis is the point A'(a, -b).

2. So the reflection of C(6, 4) is C'(6, -4)

3. Remark, a picture is always helpful when dealing with reflections.

4 0
3 years ago
Where is the circumcenter of any given triangle?
Salsk061 [2.6K]

The <em>correct answer</em> is:


B) the point of concurrency of the perpendicular bisectors of the sides of the triangle


Explanation:


The definition of circumcenter is "the point of intersection of the perpendicular bisectors of a triangle."


To construct the circumcenter, we first construct the perpendicular bisector of each side of the triangle. Once we have these three lines, we find their point of intersection; this is the circumcenter.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Solve x please 2x/3=4
    12·2 answers
  • Please hELP! Will give brainliest answer and likes
    6·2 answers
  • Can someone help please!!
    15·1 answer
  • Solve the equation by factoring.<br> 3z2 + 3z – 6 = 0<br> z = 3 or z = 2
    14·1 answer
  • The value of a second-hand car is £8000. Each year it loses 20% of its value at the start of this year. work out its value in 5
    10·1 answer
  • Plz answer quick hurry plz
    5·1 answer
  • Helpppp please <br> I’m being timeeeeedddd
    7·1 answer
  • Each side of an equilateral triangle measures 30cm. Find the length of an altitude, a , of the triangle?
    10·1 answer
  • Write the slope-intercept form of the equation of the line through the given point.
    7·1 answer
  • Two sides of a triangle are 12cm and 8cm. Complete the inequality to show the possible lengths for the third side. If the third
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!