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mario62 [17]
2 years ago
6

A number is chosen at random from a set

Mathematics
1 answer:
Arada [10]2 years ago
4 0

The probability that the chosen number selected satisfies the given condition is given below.

<h3>What is Probability?</h3>

Probability is the measure of the likeliness of an event to happen.

The probability has a range from 0 to 1, 0 denotes uncertainty, and 1 indicates certainty.

The set is numbers from 1 to 50.

The chosen number is not a perfect square,

The perfect square numbers are 1, 4, 9, 16, 25, 36, and 49.

The chosen number is not a perfect square, 50 - 7 = 43.

The probability that the chosen number is not a perfect square = 43/50

It is not a multiple of 4

Multiples of 4 are 4,8,12,16,20,24,28,32,36,40,44,48 are 12 numbers

The chosen number is not a multiple of 4 = 50 -12 = 38

The probability that the chosen number is not a multiple of 4 = 38/50

It is more than 45.

The number more than 45 is 5

The probability that the chosen number is more than 45 is,

=  5/50

= 1/10

It is not more than 45.

The number not more than 45 is 45.

The probability that the chosen number is not more than 45 is,

= 45/50

= 9/10

To know more about Probability

brainly.com/question/11234923

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X^2-81=0
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x^2=81
sqrt(x^2)=+-sqrt(81)
x=+-9
x=-9 and x=9

Answer: Options D. -9  and E. 9

8 0
3 years ago
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Answer:

k = - 2

Step-by-step explanation:

Lines g(x) and f(x) passes through the points (2, 0), (0, 2) & (4, 0), (0, 4)

Since both the lines are parallel, so slopes of lines g(x) and f(x) would be same.

Therefore,

Slope of line g = Slope of line f = (2-0)/(0 - 2) = 2/-2 = - 1

Equation of line g(x)

For point (0, 2)

y- intercept (b) = 2

y = mx + b

g(x) = - 1x + 2 [y = g(x)]

g(x) = - x + 2

Equation of line f(x)

For point (0, 4)

y- intercept (b) = 4

y = mx + b

f(x) = - 1x + 4 [y = g(x)]

f(x) = - x + 4

It is given that:

g(x) = f(x) + k

g(x) - f(x) = k

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8 0
3 years ago
Let y=f(x)=(3x+7)/(x-2) <br> find a rule for f^-1
Murrr4er [49]

Answer:

f^{-1}(x)=\frac{2x+7}{x-3}.

Step-by-step explanation:

The given function is f(x)=\frac{3x+7}{x-2},\:x\ne2.

We want to find a rule for f^{-1}(x).

Let y=\frac{3x+7}{x-2}.

Interchange x and y.

x=\frac{3y+7}{y-2}.

Solve for y.

x(y-2)=3y+7.

Expand

xy-2x=3y+7.

Group y-terms

xy-3y=7+2x.

Factor

(x-3)y=7+2x.

y=\frac{2x+7}{x-3}.

\therefore f^{-1}(x)=\frac{2x+7}{x-3},\:x\ne3.

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