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yawa3891 [41]
3 years ago
12

A ball will be drawn from the bag containing 20 balls numbered one through 20 if each ball is equally likely to be drawn what is

the probability that the number on the bar will be drawn even or less than five
Mathematics
1 answer:
son4ous [18]3 years ago
5 0

Answer:

3/5

Step-by-step explanation:

There are 20 balls, numbered 1 through 20.

Of these, 10 are even, 4 are less than five, and 2 are both even and less than 5.

So the probability is:

P(even or <5) = P(even) + P(<5) − P(even and <5)

P(even or <5) = 10/20 + 4/20 − 2/20

P(even or <5) = 12/20

P(even or <5) = 3/5

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A hotel must increase its price by 5% per night, if the new price is $168 per night. What was the original cost?
ValentinkaMS [17]

Hey there! I'm happy to help!

We see that if you add 5% to the original cost, we have $168 as our cost. This means that 105% of the original cost is 168. Let's set up an equation to find the original cost. Let's call our original cost c.

To turn a percent into a decimal, you divide by 100.

1.05c=168

We divide both sides by 1.05.

c=160

Therefore, the original cost was $160.

Have a wonderful day! :D

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3 years ago
Which shows the correct substitution of the values a, b, and c from the equation –2 = –x + x² – 4 into the quadratic formula?
Romashka [77]
-2 = - x + x^2  -4 => x^2 - x - 4 + 2 = 0

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a is the coefficient of x^2 => a = 1

b is the coefficient of x => b = - 1

c is the constant term => c = - 2

quadratic equation: [- b +/- √(b^2 - 4ac) ] / 2a =

= { 1 +/- √[ (-1)^2 - 4(1)(-2)] } / (2(1) = { 1 +/- √ (1 + 8) } / 2 = {1 +/- √9} / 2 =

= { 1 +/- 3} / 2
4 0
3 years ago
Find the coordinates for the midpoint of the segment with endpoints given.
Gnesinka [82]
(1/2, 5/2) is correct one
3 0
2 years ago
Read 2 more answers
PLEASE HELP!!!!!!!!!!!!!
solniwko [45]

Answer:

the answer is c

Step-by-step explanation:

because it doesn't repeat the same number for example if it was two -1s it wouldn't be a function but positive and negative are different so yeah

6 0
3 years ago
NEED HELP ASAP, I WILL GIVE YOU BRAINLIEST
tresset_1 [31]

Answer:

0.9412

Step-by-step explanation:

Ultimately, if you know the length of the arc, and you know the length of the radius, the central angle (in radians) is just how many radii long the arc is. angle=arc lengthradius length=16 feet17 feet≈0.9412.

8 0
3 years ago
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