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s344n2d4d5 [400]
3 years ago
9

8/3​ c−2= 2/3 ​ c−12

Mathematics
1 answer:
e-lub [12.9K]3 years ago
3 0

Answer:

c = -5

Step-by-step explanation:

(8/3c - 2)3 = (2/3c - 12)3

8c - 6 = 2c -36

6c = -30

c = -5

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Because of a problem in the program, the timer in a video player did not begin counting until the video had been playing for sev
kotykmax [81]

Answer:

105 frames

Step-by-step explanation:

Given that 25 frames are played per second

25 frames= 1 sec

The video already played 3 and 2/5 seconds before the player started to count 0

Write 3 and 2/5 seconds as an improper fraction

=(5*3)+2 / 5 = 17/5 seconds

Multiply by 25 frames

17/5 *25 =85 frames

So according to the video counter,after 17/5 seconds,it should count 85 frames.However,at 0 seconds,it indicated a count of 190 frames.Thus,to get the number of frames that were already in count you subtract 85 frames from the 190 frames.

190-85=105 frames.

7 0
4 years ago
Read 2 more answers
Let X be a Binomial Random Variable with 8 trials and a probability of success as 0.37. Suppose you want to find k such that P(X
larisa86 [58]

Answer:

k = 4

Step-by-step explanation:

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem we have that:

n = 8, p = 0.37. So

P(X < k) = 0.6625

k only assumes discrete values, so

P(X < k) = P(X \leq k-1) = 0.6625

We have to find the cummulative distribution until we hit 0.6625. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{8,0}.(0.37)^{0}.(0.63)^{8} = 0.0248

P(X \leq 0) = P(X = 0) = 0.0248

P(X = 1) = C_{8,1}.(0.37)^{1}.(0.63)^{7} = 0.1166

P(X \leq 1) = P(X = 0) + P(X = 1) = 0.0248 + 0.1166 = 0.1414

P(X = 2) = C_{8,2}.(0.37)^{2}.(0.63)^{6} = 0.2397

P(X \leq 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.0248 + 0.1166 + 0.2397 = 0.3811

P(X = 3) = C_{8,3}.(0.37)^{3}.(0.63)^{5} = 0.2814

P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0248 + 0.1166 + 0.2397 + 0.2814 = 0.6625

P(X \leq 3) = P(X < 4) = 0.665

So k = 4

7 0
3 years ago
Which of these shows 9z + 5 rewritten using the commutative property of addition? (90 points)
Lera25 [3.4K]

Commutative property Of addition means you can change the order of the terms being added and it won’t affect the final answer.

9z + 5 can be rearranged to 5 + 9z and the answer would be the same.

The answer is 3) 5 + 9z

3 0
3 years ago
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I have 15 overdue lessons in class. If each lesson takes 30min to and hour to do and I have 7-8 hours how many lessons could I g
Leokris [45]
About 4 if each is 30 mins
lol...
5 0
4 years ago
What is the area of a circle with a radius of 4?
enot [183]
The formula for the area of a circle is A=πr².
A=πr²
A=π4²
A=π16
Assuming you use 3.14 for π,
A≈50.27
4 0
4 years ago
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