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
Sauron [17]
3 years ago
5

What is the sum of the first 7 terms of this geometric sequence? 3, 9, 27, 81,

Mathematics
1 answer:
morpeh [17]3 years ago
3 0
A. 3279 because the first 7 terms are 3,9,27,81,243,729,2187
You might be interested in
State the amplitude, period, phase shift, and vertical shift of the function h(t)= cos (t+1)
oksano4ka [1.4K]

Answer:

Option b.

Step-by-step explanation:

We can easily solve this problem by using a graphing calculator or plotting tool.

The function is

h(t) = cos (t +1)

Please, see attached picture below.

By looking at the picture, we can tell that the amplitude is equal to 1

The function has a period of T = 2π

We can see there is no vertical shift.

It has a phase shift of +1. (Which moves the graph to the left)

Answer:

Option b.

5 0
3 years ago
-18 - 14= whats the answer help
AveGali [126]

Answer:

-32 :) is the answer just think about it as your adding the sum of these numbers then putting a negative in front of it.

Step-by-step explanation:

5 0
3 years ago
100 points!!!
Bogdan [553]

Answer:

(1, 5)

Step-by-step explanation:

The solution to the system of equations is the point of intersection of the two lines.  From inspection of the graph, the point of intersection is at (1, 5).

<u>Proof</u>

The solution to a system of equations is the point at which the two lines meet.  

⇒ g(x) = f(x)

⇒ 3x + 2 = |x - 4| + 2

⇒ 3x = |x - 4|

⇒ 3x = x - 4   and   3x = -(x - 4)

⇒ 3x = x - 4

⇒ 2x = -4

⇒ x = -2

Inputting x = -2 into the 2 equations:

⇒ g(-2) = 3 · -2 + 2 = -4

⇒ f(-2) = |-2 - 4| + 2 = 8

Therefore, as the y-values are different, x = -2 is NOT a solution

⇒ 3x = -(x - 4)

⇒ 3x = 4 - x

⇒ 4x = 4

⇒ x = 1

Inputting x = 1 into the 2 equations:

⇒ g(1) = 3 · 1 + 2 = 5

⇒ f(1) = |1 - 4| + 2 = 5

Therefore, as the y-values are the same, x = 1  IS a solution

and the solution is (1, 5)

8 0
3 years ago
A rectangle has a length of 12 inches and a width of 6 inches. A second rectangle will be drawn with a scale factor of
LenaWriter [7]

Answer:

36 × 18=648

Step-by-step explanation:

first one should do the area which results to 36 inches.

secondly do 3 × length of each side of the rectangle since scale factor is gotten by doing the recipricol of the scale factor given.

6 0
4 years ago
What is the sign of the product (3) × (−3) × (−2) × (4)?
Free_Kalibri [48]

Answer:

Positive, because the products (3) × (−3) and (−2) × (4) are negative and the product of two negative numbers is positive.

Step-by-step explanation:

Since 1 * -1 = -1, and -1 * -1 = 1, the product of opposite signs produces negative numbers while the product of same signs produces positive numbers. So the product of 1 * 1 * 1 * -1 = -1, while -1 * -1 * -1 * -1 = 1.

3 0
3 years ago
Other questions:
  • A man walks into a store and steals 100 dollars out of the register without the owner knowing it and then buys 70 dollars worth
    13·1 answer
  • 315 - 4/15 equals what
    12·2 answers
  • Order the following values from least (top) to greatest (bottom).
    10·1 answer
  • Answer math question/show work
    13·1 answer
  • What is the dashed green part of the figure below?
    9·1 answer
  • Click On the Flag that best shows where each number falls on the number line. -3.
    6·2 answers
  • Need some help not very good at fractions so i need some help
    10·1 answer
  • Keegan says that a quadrilateral is a square if and only if it is a rectangle. Is this a true biconditional statement?
    13·1 answer
  • Which equation has no real solutions?
    5·1 answer
  • Graph y = 2x + 3 A? B? C? OR D
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!