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
tatyana61 [14]
3 years ago
6

The sum of the first 6 terms of a geometric sequence is 7, 812. the common ratio is 5. what is the second term of the sequence?

Mathematics
1 answer:
Snezhnost [94]3 years ago
4 0
OH right! I should have realised that!

S6 =  7,812 = a1 * (5^6 - 1)
                               -----------  were  a1 = first term
                                 5 -  1

3906*a1 = 7812
a1 = 7812 / 3906 =  2

Therfore the second term = 2*5  = 10 Answer
You might be interested in
Help meeeeeeeeee I need the answer
Tanzania [10]

Answer:

d is the answer

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
HELP HELP HELP I DONT HAVE TIME HELPPP
Thepotemich [5.8K]

Answer:

F

Step-by-step explanation:

its false

4 0
3 years ago
Find the zero of the function f(x) = -8x + 4.<br> NEED HELP FAST DONT HAVE MUCH TIME
Paladinen [302]

Answer:

1/2

Step-by-step explanation:

5 0
3 years ago
P(X&lt; ) 1-P(X&gt; ) A softball pitcher has a 0.626 probability of throwing a strike for each curve ball pitch. If the softball
Mashutka [201]

Answer:

19.49% probability that no more than 16 of them are strikes

Step-by-step explanation:

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that \mu = E(X), \sigma = \sqrt{V(X)}.

In this problem, we have that:

n = 30, p = 0.626

So

\mu = E(X) = np = 30*0.626 = 18.78

\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{30*0.626*0.374} = 2.65

What is the probability that no more than 16 of them are strikes?

Using continuity correction, this is P(X \leq 16 + 0.5) = P(X \leq 16.5), which is the pvalue of Z when X = 16.5. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{16.5 - 18.78}{2.65}

Z = -0.86

Z = -0.86 has a pvalue of 0.1949

19.49% probability that no more than 16 of them are strikes

7 0
3 years ago
Jake has $11 left in his pocket. he spent $3 on a bus ticket, $5 on lunch, and $5 on a movie. how much money did he have at the
KATRIN_1 [288]
$24 if it is at the beginning of the day and he is left with $11, and if he spent $13, then 11+13=24
4 0
3 years ago
Read 2 more answers
Other questions:
  • How long would it take a car with a top speed of 203 mph to travel 12.42 miles up a slope of 6.4% accelerating at 0.091 G's
    13·2 answers
  • Find the missing base.
    5·2 answers
  • The relationship between two variables partialling out the effect that a third variable has on one of those variables can be exp
    10·1 answer
  • Question 5
    15·1 answer
  • Pleeeeeese helppp!!!!!!!!!!!
    11·1 answer
  • Is this equivalent 8z(4+z) and 32x+8z
    9·1 answer
  • A shirt costs $30 but is on sale for 25% off. How much does the shirt cost after the sale?
    7·1 answer
  • Someone pls help me I will make you as brain
    6·2 answers
  • Pls help!!!!!!! i will give brainliest!!!!!
    15·1 answer
  • I need the right answer!<br>thanks in advance^^ <br><br>​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!