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RoseWind [281]
3 years ago
7

Tell whether the following sequence is geometric or not. If geometric find r

Mathematics
1 answer:
krok68 [10]3 years ago
8 0

Answer:

  • yes
  • r = 1/2

Step-by-step explanation:

We can observe each term is twice as less than the previous term.

<u>This is the indication the sequence is geometric and the common ratio is:</u>

  • r = 1/2
You might be interested in
3. James drives for 5 hours at a certain speed and then for 4 hours at a speed 6 km/h greater than his original speed. If he dri
riadik2000 [5.3K]

Answer:30km/hr

Step-by-step explanation:

Total distance=294km

Speed=s

Distance=d

Time=t

First drive:

t=5

d=s x t

d=s x 5

d=5s

Second drive:

t=4

Speed is 6km/h greater than the first speed

The new speed= s+6

d=4(s+6)

Total distance=294

5s + 4(s + 6)=294

5s + 4s + 24=294

Collect like terms

5s + 4s=294 - 24

9s=270

Divide both sides by 9

9s/9=270/9

s=30

First speed=30km/hr

4 0
3 years ago
The probability that a randomly selected student is a girl is 0.52, and the probability that a student is a girl and in an art c
DaniilM [7]

Answer: The answer is 0.38

Step-by-step explanation:

Well, everything is given, as stated in the question "the probability that a student is a girl and in an art class is 0.20."

It's given that the probability that a student is a girl is 0.52.

However, in the question, it said that it's given a student is a girl.

You have the probability that a student is a girl and in art class, so you need to find what 0.52 was multiplied by which would be the probability of someone being in art class. Knowing this you can do 0.20 / 0.52 to get 0.38.

4 0
2 years ago
Last question for today ✌
miv72 [106K]

Answer:

I think it is D

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve for t.<br><br> t/-3.2 &lt; 5
Black_prince [1.1K]

Step-by-step explanation:

t/-3,2 < 5

t > 5 × -3,2

t >-16

4 0
3 years ago
Write a subtraction fact with the same difference as 16-7?
Alona [7]
So, this is asking for any number that subtracts to = 16-7

Well, 16-7= 9 so use any two numbers that would subtract to equal 9

Like so:

11-2=9
18-9=9
34-25=9
-2-11=9
Etc....

Hope this helps! :)
7 0
3 years ago
Read 2 more answers
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