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ehidna [41]
3 years ago
5

PLEASE HELP EASY ALGEBRA

Mathematics
2 answers:
algol [13]3 years ago
8 0
The terms of the geometric sequence are 1,3,9, ...,

The first term is a = 1
The common ratio is r = 3.

The sum of the first 10 terms is


Answer:  29524
Ganezh [65]3 years ago
7 0

Answer: Option 'A' is correct.

Step-by-step explanation:

Since we have given that

Geometric series is as follows:

1,3,9,................

Number of terms = 10

n = 10

a = 1

r = \dfrac{a_2}{a_1}=\dfrac{3}{1}=3

We need to find the sum of the geometric sequence for 10 terms.

S_{10}=\dfrac{a(r^n-1}{r-1}\\\\S_{10}=\dfrac{1(3^{10}-1)}{3-1}\\\\S_{10}=\dfrac{59048}{2}\\\\S_{10}=29,524

Hence, Option 'A' is correct.

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Mrac [35]
Basically when you foil inner terms cancel out
7 0
3 years ago
Find the area of this,<br> Simplify your answer completely.
creativ13 [48]

Answer:

\frac{2}{15}  {cm}^{2}

Step-by-step explanation:

Area of Rectangle = Length x Breadth

=

\frac{1}{5}  \times  \frac{2}{3}  \\  =  \frac{2}{15}  {cm}^{2}

4 0
2 years ago
HELPPPPPOOPPPLLLL pleaseee begging
svp [43]

Answers:

surface area : (41.2x2) + (4x9x6) = 298.4 cm 2

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Step-by-step explanation:

3 0
3 years ago
Barry's final score is 45 which player had the greater final score?
natali 33 [55]

The player with the greater final score is of:

Barry.

<h3>How to obtain which player had the greater final score?</h3>

Barry's final score is given as follows:

45.

Then we have to obtain Lee's score, from the description given in the missing information section.

Lee's scored is obtained as follows:

  • Starts at -350.
  • Answers a 275-point question correctly, hence - 350 + 275 = -75.
  • Answers a 70 - point question correctly, hence -75 + 70 = -5.
  • Answers a 50 - point question incorrectly, hence: -5 - 50 = -55.

Thus Lee's final score is given as follows:

-55.

The classifications of the final scores according to the signals are given as follows:

  • Barry: positive score.
  • Lee: negative score.

A positive score will always be greater than a negative score, hence Barry had the greater final score.

<h3>Missing information</h3>

Lee and Barry play a trivia game in which questions are worth different numbers of points. If a question is answered correctly, a player earns points. If a question is answered incorrectly, the player loses points. Lee currently has -350 points.

a. Before the game ends, Lee answers a 275 -point question correctly, a 70 -point question correctly, and a 50 -polnt question incorrectly. Write and find the value of an expression to find Lee's final score.

b. Barry's final score is 45. Which player had the greater final score?

More can be learned about addition of measures at brainly.com/question/24342899

#SPJ1

5 0
2 years ago
Maths in science
zheka24 [161]

Answer:

Step-by-step explanation:

answer is that i dont know

6 0
3 years ago
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