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3 years ago

If you were to flip a coin twenty times, approximately how many times do you think heads would come up?

Mathematics

2 answers:

Gemiola [76]3 years ago

8 0

Theoretically 10 because the 50/50 chance realistically though you'll get more or less

Llana [10]3 years ago

7 0

The probability of heads on any toss is just as likely as the probability of tails because each coin toss is an independent event. In other words two events related in such a way that knowing about the occurrence of one event has no effect on the probability of the other event, in others words independent.

It does not matter if you have flipped a coin 5 times and it was heads, it is not "due" to come up tails. This is an incorrect assumption just like it is incorrect to believe you are "on a roll" because 5 times it was heads.

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For this question I am sure the answer is 81% as you divide 45 and 55. However, it is stating my answer is incorrect even though

77julia77 [94]

Answer:

it says round to the nearest 10th so it wouldn't be 81, it would be 81.8%

8 0

3 years ago

Write the equation of the line perpendicular to y = -3/4x that passes through the point (3,-8)

arlik [135]

Answer:

y = $\frac{4}{3}$ x - 12

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - $\frac{3}{4}$ x ← is in slope- intercept form

with slope m = - $\frac{3}{4}$ , c = 0

Given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-\frac{3}{4} }$ = $\frac{4}{3}$ , then

y = $\frac{4}{3}$ x + c ← is the partial equation

To find c substitute (3, - 8) into the partial equation

- 8 = 4 + c ⇒ c = - 8 - 4 = - 12

y = $\frac{4}{3}$ x - 12 ← equation of perpendicular line

4 0

3 years ago

Help me plz I do not understand

9966 [12]

It is quite simple actually since it is simple division with the negative rules.
Just simplify the problem and use the negatives to determine if it is positive or negative. (two negatives equal a positive and one negative equals a negative)

5 0

3 years ago

What is this ????><<<<<<<<<<<<<<<

Nat2105 [25]

Answer:

(x, y)

(7, 0)

Bike Trail is at 7, 0... It is 7 spots to the right (on the x axis) and 0 spots up or down (on the y axis)

Step-by-step explanation:

bike trail is the correct answer :)

Hope this helpss

6 0

3 years ago

Read 2 more answers

Factor each expression<br>(9 & 10)

s344n2d4d5 [400]

9)
8x+4*6
8x+24

11)
3t+2c=6tc

7 0

3 years ago