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4 years ago

What is the solution for -6(1-5v)=54 ?

2 answers:

5 0

First, expand the equation (multiplication) . Then, Put the unknown at one side. You'll get the answer as 2.

-6(1-5v)=54
-6(1) -6(-5v)=54
-6+30v=54
30v=54+6
30v=60
v=60/30=2

snow_tiger [21]4 years ago

4 0

Isolate the variable by dividing each side by the factors that don't contain the variable

v=2

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Julli [10]

Answer:

5/52

Step-by-step explanation:

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1 year ago

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Answer:

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4 years ago

Read 2 more answers

Find the equationof a circle whose centre is (-3-15) and passing point (5,-1) find the equation of circle..

Ludmilka [50]

Answer: $(x+3)^{2} +(y+15)^{2}=260$

Step-by-step explanation:

The centre is (-3,-15), so we can say the equation of circle is $(x+3)^{2} +(y+15)^{2}=r^{2}$ . put (5,-1) at this equation.

then, we can know $r^{2}=260$ .

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3 years ago

You are playing a game called Tsunami Duck Pond. In Tsunami Duck Pond there are 100 ducks that get pummeled by tidal waves. You

lilavasa [31]

Answer:

a) W is a binomial random variable because in each trial there are only two possible outcomes, and the probability of a success is always the same.

b) 0.2013 = 20.13% probability that you win exactly 3 times.

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.

a. Explain why W is a binomial random variable.

For each time a duck is selected, there are only two possible outcomes. Either it has a star, or it does not. Also, after a duck is selected, it is placed back in the water which means that in each trial, the probability of finding a duck with star is the same. This is why W is a binomial random variable.

b. Find the probability that you win exactly 3 times.

Let W=the number of times you win if you play this game 10 times.

This means that $n = 10$