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
Dmitry [639]
2 years ago
12

What is ∑n=16[4(−5)n−1] equal to? Enter your answer in the box.

Mathematics
1 answer:
Cerrena [4.2K]2 years ago
4 0

Step-by-step explanation:

Geometric Sequence formula for general term:

an = a1(r^n-1)

a1 = 4 × (-5)^1-1

a1 = 4

r = -5

Summation formula for geometric sequence :

Sn = a1 ( 1 - r^n / 1 - r )

...<em>take n from the top of the summation.</em>

= 4 ( 1 -(-5)^6 / 1 -(-5)

= -10416.

You might be interested in
A doctor has invented a relaxation method that he
likoan [24]

Answer:

Exam score

Step-by-step explanation:

The response variable also known as the d pendent variable, is simply the variable we intend to measure based in a set of variables (independent variables or explanatory variables) which might cause it to change. For instance, the scenario above aims to look into how a certain relaxation method will affect the exam score, here, the variable we intend to measure is the response variable which is exam score. The exam score is affected by the impact the relaxation method has on the student, hence, the relaxation method is the independent or explanatory variable.

4 0
3 years ago
I need help asap ple​
Vinil7 [7]

Answer:

its 16

Step-by-step explanation:

6 0
3 years ago
During the season, the Rangers played 25 games. They won 14 of the games.
34kurt

Answer:

See below

Step-by-step explanation:

Out of 25 games, they won 14

Fraction won = won / total = 14 / 25

Percent won = won /total * 100 % = 14/25 * 100 = .56 * 100 % = 56 %

To find the number of games lost

25-14 = 11

Fraction won = won / total = 11 / 25

Percent won = won /total * 100 % = 11/25 * 100 = .44 * 100 % = 44 %

To check your work, the percent total should be 100

56+44 = 100

5 0
2 years ago
How many times does 5 go in to 47
Feliz [49]
47/5=9.40
9*5=45
47/5= 9 2/5
6 0
3 years ago
What is the solution to the equation below?<br> 12 + square root 1 - 5x = 18
GrogVix [38]

Answer:

-1

Step-by-step explanation:

Square root 1 is 1. Add that to the 12 to get 13. Subtract 13 from both sides to get: -5x = 5. Divide both sides by -5 to get your answer: -1

5 0
3 years ago
Read 2 more answers
Other questions:
  • Based on the equation 3x + 8y = 48, what is the missing value in the table?
    6·2 answers
  • What is p-7/12&gt;3/10 please help
    12·1 answer
  • What is the square route of 24
    15·1 answer
  • Two marbles are randomly drawn from a bag containing 3 purple, 1 blue, and 1 yellow marble. The first marble is blue and is not
    6·1 answer
  • Kylie explained that (–4x + 9)2 will result in a difference of squares because (–4x + 9)2 = (–4x)2 + (9)2 = 16x2 + 81. Which sta
    12·2 answers
  • A cone has a base radius of 7 centimeters and a height of 21 centimeters.
    14·1 answer
  • 10. angle GHI is an isosceles triangle with GI HI. IF GH is three more than x, HI is 17 less than four
    12·1 answer
  • jayden's old washing machine took 31 1/2 minutes to wash a load. He bought a new washing machine that takes 10% longer. How long
    5·2 answers
  • Which statement about the following equation is true? 2x2 – 9x + 2 = –1
    9·1 answer
  • The monthly cost (in dollars) of a long-distance phone plan is a linear function of the total calling time (in minutes). The mon
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!