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
mezya [45]
3 years ago
12

PLEASE I NEED TO TURN THIS IN TOMORROW I NEED HELP PLEASE HELP ME

Mathematics
2 answers:
mart [117]3 years ago
7 0

Answer: \sum_{n=1}^{5}4^n=1364

Step-by-step explanation:

Since we have given that

\sum_{n=1}^{5}4^n

Now, we know the rule for summation , we'll apply this ,

\sum_{n=1}^{5}4^n\\=4^1+4^2+4^3+4^4+4^5\\

Now, it becomes geometric progression, so we us the formula for sum of terms in g.p. which is given by

S_n=\frac{a(r^n-1)}{r-1}\\\\\text{where 'a' is the first term and 'r' is the common ratio}

So, our equation becomes ,

a=4 \\\\r=\frac{a_2}{a_1}=\frac{4^2}{4}=4\\\\S_5=\frac{4(4^5-1)}{4-1}\\\\S_5=1364

Hence ,

\sum_{n=1}^{5}4^n=1364

UNO [17]3 years ago
5 0

Answer: 1364

<u>Step-by-step explanation:</u>

∑ 4ⁿ   <em>from n = 1 to 5</em>

n = 1:    4¹   =    4

n = 2:   4²   =   16

n = 3:   4³   =   64

n = 4:   4⁴   =  256

n = 5:   4⁵   =<u> 1024 </u>

                     1364


You can also use the formula: S = [a(1 - rⁿ)]/(1 - r)

S = \frac{4(1 - 4^{5})}{1 - 4}

  = \frac{4(1 - 1024)}{-3}

  = \frac{4(-1023)}{-3}

  = \frac{-4092}{-3}

  = 1364

You might be interested in
What is the slope of a line that goes through the points (-3,0) and (-1,4)
aniked [119]

Step-by-step explanation:

4 -0 / -1 - -3.

4/2 = 2

m = 2 (slope)

7 0
2 years ago
PLZ HELP FAST!!! WILL MARK THE BRAINLIEST -Which of the following is an equivalent form of the compound inequality −33 &gt; −3x
Mazyrski [523]

Answer:

The answer is A

Step-by-step explanation:

4 0
3 years ago
give the length and width in whole inches of three different rectangles that each have an area of 48 in. squared
lozanna [386]
To find the length and width of 3 different rectangles that have an area of 48 square inches, you can use the factor pairs that result in 48.

The reason is that to find the area of a rectangle you multiply two dimensions.

2 in x 12 in
3 in x 8 in
4 in x 6 in

On all these either one could be the length and the other the width.
8 0
2 years ago
Cual es el valor de x? -5x+3=2×(x-1)
AVprozaik [17]
X=11+1=12 hope I helped you
5 0
2 years ago
18. what Gives the missing value in 2/5 = x/30?
Korolek [52]
X is equal to 12
This is because 5 was multiplied and 6 making 30. So you have to multiply 2 and 6 making x 12. Hope that makes sense
3 0
3 years ago
Other questions:
  • Factor 8 (y-3) - 3y (y-3)
    6·1 answer
  • Moving the decimal point to the right 4 places in a number is the same as _____.
    15·2 answers
  • Find the solution set for this inequality below.
    15·1 answer
  • The speed limit on a highway is 70per hour about how fast is this in per minute
    7·2 answers
  • What is the distance between the points (-1,2) and (2,3).
    7·1 answer
  • .
    12·1 answer
  • Which ordered pair is a solution to the equation y=3x-10​
    9·1 answer
  • There is a snowstorm in a certain town. In 30 minutes, 78 in. of snow falls. It continues at the same rate for a total of 2 h. W
    7·2 answers
  • Math pls patulong
    8·1 answer
  • (1.1x10^-3) - (9.6x10^-4)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!