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3 years ago

5

The probability of an event happening is 23%. What is the complement of the event?

1 answer:

solong [7]3 years ago

7 0

Answer:The probability of the complement of an event is one minus the probability of the event. Since the sum of probabilities of all possible events equals 1, the probability that event A will not occur is equal to 1 minus the probability that event A will occur.

Step-by-step explanation:Complement of an Event: All outcomes that are NOT the event. So the Complement of an event is all the other outcomes (not the ones we want). And together the Event and its Complement make all possible outcomes.

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Montano1993 [528]

Step-by-step explanation:

it is solved directly by using the formula

4 0

3 years ago

What is the result when the number 20 is decreased by 75%?\

Viefleur [7K]

Answer:

5

Step-by-step explanation:

If 20 is <em>decreased </em>by 75%, you would have to do 20×0.25 because 1.00-0.75= 0.25. Therefore, the answer to your question would be 5.

Hope this was helpful!!!

8 0

3 years ago

Glven the line segment RT, with endpolnt R(6,9) and<br> midpoint A(-3,7)

Rzqust [24]

It would be (-12, 5)

7 0

3 years ago

3.4=21 2.5=7. 4.4=؟

Licemer1 [7]

Answer:

32

Step-by-step explanation:

From the given values

The possible logic could be

if x.y is given

then it is equal to $=\frac{(x+y)\times x}{y-3}$

For 1st example

3.4 $=\frac{(3+4) \times 3}{4-3} =\frac{21}{1} =21$

For 2nd example

2.5 $=\frac{(2+5) \times 2}{5-3} =\frac{7 \times 2}{2} =7$

⇒4.4 $=\frac{(4+4)\times 4}{4-3} =32$

4 0

3 years ago

X varies directly as y. If x is 9 when y is 4, find x when-y is 8.

jeka94

Answer:

see explanation

Step-by-step explanation:

Given x varies directly as y then the equation relating them is

x = ky ← k is the constant of variation

To find k use the condition x = 9 when y = 4

k = $\frac{x}{y}$ = $\frac{9}{4}$ = 2.25

x = 2.25y ← equation of variation

When y = 8, then

x = 2.25 × 8 = 18

4 0

3 years ago