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belka [17]
2 years ago
12

Find the 13th term of the geometric sequence 7, 21, 63, ...7,21,63,.

Mathematics
1 answer:
solong [7]2 years ago
8 0

Answer:

3,720,087

Step-by-step explanation:

Multiply each number by 3.

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C)<br> A bus drives for 3/2 hours at an average speed of 56 mph.<br> How far does the bus drive?
natta225 [31]

Answer:

The bus drives 84 miles

Step-by-step explanation:

The question relates to relationship between average speed and time

The given parameters are;

The time duration in which the bus drives = 3/2 hours = 1.5 hours

The average speed of the bus = 56 mph

The formula average speed is given as follows;

Average \ speed = \dfrac{The \ total \ distance \ driven}{The \ time \ duration \ of \ travel}

Therefore, we have;

The total distance driven = Average speed × The time duration of travel

The total distance driven = The distance the bus drives

Substituting the given values, gives;

The distance the bus drives = 56 miles/hour × 1.5 hours = 84 miles

The distance the bus drives = 84 miles.

4 0
2 years ago
If 60 - y &lt;20, then y could be?
PilotLPTM [1.2K]

Answer:

i think the answer would be y>40

3 0
3 years ago
Simplify by using factoring: (2a+6b)(6b−2a)−(2a+6b)^2
GrogVix [38]

Answer:

-8a(a+3b)

Step-by-step explanation:

(2a+6b)(6b−2a)−(2a+6b)^2

(2a+6b) {(6b−2a)−(2a+6b)(2a+6b)}

2(a+3b) (6b-2a-2a-6b)

2(a+3b) (-4a)

-2(a+3b) x 4a

-2 x 4a (a+3b)

-8a(a+3b)

8 0
3 years ago
James is 8 years old. Last year, his father was 4 times as old as he was. In how many years' time will their combined age be 51?
Snowcat [4.5K]

Last year He was 7 years old.

His father is 4 times the age 7 x 4 = 28

Last year his dad was 28, so this year he is 29.

Combined age this year = 29 + 8 = 37

51 - 37 = 14 years

14/ 2 people = 7 years

8 + 7 = 15

29 + 7 = 36

15 + 36 = 51

It will take 7 years.

7 0
3 years ago
2^3 times 2^3+= <br> what does this eqaul
VLD [36.1K]

Answer:

36

Step-by-step explanation:

2x3 x 2x3 = 36

Sorry if this didnt help

3 0
2 years ago
Read 2 more answers
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