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
eduard
3 years ago
14

the first term of a geometric progression is 12 and the second term is -6. Find the (i) the tenth term of the progression (ii) t

he sum to infinity
Mathematics
1 answer:
lesantik [10]3 years ago
6 0

Step-by-step explanation:

a1=ar⁰=12 A2=ar¹=-6

a=12 ar=-6

12r=-6

r=-6/12

r=-1/2

a10=ar⁹

=12*(-1/2)⁹

=12*(-512)

=-3/128

S∞ = a1 / (1-r )

=12/(1-1/2)

=12*1/2

=6

You might be interested in
Complete the equation describing how x and y are related
Orlov [11]

Answer:

5 is the answer

Step-by-step explanation:

because it you add 5 to all the x values you get the y values

6 0
2 years ago
A bag contains 1 blue, 2green, 3 yellow, and 3 red marbles, as shown. What’s is the probability of drawing a red marble out of t
fredd [130]

Hey there!

Your probability of you receiving a red colored marble would 3/9.

Have a nice day fam ;)

4 0
3 years ago
At 9 AM Monday morning Thomas feels a beaker with water and places it in the corner of the classroom. At 1 PM Tuesday Thomas exa
aev [14]

The level has dropped 11 mms in 22 hours

that is 0.5mm per hour

So the remaining 31 mm will be gone in 31 / 0.5 = 62 hours

62 hours after 11 am Wednesday brings us to   11 am Friday + 14 hours

=  1 am Saturday.   answer

5 0
3 years ago
Read 2 more answers
Suppose box A contains 4 red and 5 blue poker chips and box B contains 6 red and 3 blue poker chips. Then a poker chip is chosen
sergejj [24]

Answer:

0.5172 = 51.72% probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Coin chosen from box B is red.

Event B: Blue poker chip transferred.

Probability of choosing a red coin:

7/10 of 4/9(red coin from box A)

6/10 of 5/9(blue coin from box A). So

P(A) = \frac{7}{10}*\frac{4}{9} + \frac{6}{10}*\frac{5}{9} = \frac{28 + 30}{90} = 0.6444

Blue chip transferred, red coin chosen:

6/10 of 5/9. So

P(A \cap B) = \frac{6}{10}*\frac{5}{9} = \frac{30}{90} = 0.3333

What is the probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red?

P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.3333}{0.6444} = 0.5172

0.5172 = 51.72% probability a blue poker chip was transferred from box A to box B, given that the coin just chosen from box B is red

5 0
2 years ago
Factor the trinomial: <br>x^2-8x-33<br><br>please help I'm stumped
Anon25 [30]
-33=-11*3
-8=-11+3
so
(x-11)(x+3)
8 0
2 years ago
Read 2 more answers
Other questions:
  • Simplify (square root of 2)(cube root of 2)
    9·1 answer
  • What is the unit rate of $112 in 8 hours
    14·1 answer
  • picture included , please help, which of the following equations describe the line shown below (1,10) and (-3,2) *check all that
    12·2 answers
  • 43 miles into feet<br><br><br> 17 years into minutes<br><br><br> show all work
    11·1 answer
  • Barbara claims that her horse can do simple addition problems. She showed her horse eight different cards with simple addition p
    10·2 answers
  • Find the value of x <br> A.21<br> B.30<br> C.9<br> D.6
    8·1 answer
  • The ratio of adults to children and a movie theater is 7:2. If there are 26 children in the theater how many adults are there
    15·2 answers
  • Plz, Answer if u want brain.
    7·2 answers
  • 3/2 * (-5/8) what is the an
    14·1 answer
  • SIAPA YANG MAU JADI TEMENKU..​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!