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Mariulka [41]
3 years ago
14

What is the experimental probability of getting heads?

Mathematics
2 answers:
hjlf3 years ago
8 0

Answer: 50%, or 1:2

Step-by-step explanation: There are two faces on a coin: heads and tails. Whenever you flip a coin, you are going to get one or the other. The chances of you getting heads is 50%, or 1:2.

8_murik_8 [283]3 years ago
6 0

Answer:

1/2 because there's 2 sides to a coin.

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Sophie and Simon are peeling a pile of potatoes for lunch in the cafeteria. Sophie can peel all the potatoes by herself in 45 mi
tensa zangetsu [6.8K]
Short Answer: 18 minutes
Remark

The answer to this problem is less than the smallest time of the two people working together. that fact lets out C and D (38 minutes and 75 minutes). Now you have to choose 15 minutes and 18 minutes. There's a method. No guessing needed.

Givens
Let the time for Sophie = S
Let the time for Simon = M
Let the job to completion = 1 
S = 45 minutes
M = 30 minutes

Step One
Convert minutes to hours.
45 minutes = 45 / 60 = 3/4 hour = 0.75 hour
30 minutes = 30 / 60 = 1/2 hour = 0.50 hour

Step Two
Set up the Equation
The formula is a form of job / hour.
Let the time = t that they both have to work

job = 1 in these problems.
1/S + 1/M = 1/t
1/0.75 + 1/0.5 = 1/t

Solve
1 ÷ 0.75 = 1.33333
1 ÷ 0.5 = 2

1.3333 + 2 = 3.33333 
3.3333 = 1 / t                    Multlply both sides by t
3.3333*t = 1
t = 1 / 3.333333333
t = 0.3 of an hour


1 hour = 60 minutes
0.3 hours = x              Cross Multiply
x = 60 * 0.3
x = 18 minutes

Answer working together it took them 18 minutes  <<<<< 
6 0
3 years ago
Read 2 more answers
How to write 899,501 in expanded form
adell [148]
800,000+90,000+9,000+500+1
5 0
3 years ago
Read 2 more answers
What is the measures of N<br>​
Lubov Fominskaja [6]

Answer:provides that the voter approval requirement would not apply where the General Plan amendment is necessary to comply with state or federal housing law, including, but not limited to, affordable housing requirements.

Step-by-step explanation:

5 0
2 years ago
If f x equals x -3 + g x equals 1 - x 2 - 9 find ( f og) (x and give any restrictions on its domain
evablogger [386]
\begin{gathered} f(x)=x-3 \\ g(x)=\frac{1}{x^2-9} \\ (\text{fog)(x)}=\frac{1}{x^2-9}-3 \end{gathered}

the denominator cannot be zero, because the division by zero is not defined, therefore:

\begin{gathered} x^2-9=0 \\ \text{Solving for x:} \\ x^2=9 \\ \sqrt[]{x^2}=\sqrt[]{9} \\ x=\pm3 \end{gathered}

Therefore the domain of (f o g)(x) is:

D\colon(-\infty,-3)\cup(-3,3)\cup(3,\infty)

3 0
1 year ago
A student bought a piece of hard candy that is in the shape of a sphere. The candy has a radius of 3 centimeters.
worty [1.4K]

Volume of piece candy is 113.04 cubic centimeter

<em><u>Solution:</u></em>

A student bought a piece of hard candy that is in the shape of a sphere

<em><u>The candy has a radius of 3 centimeters</u></em>

Radius = 3 cm

Use 3.14 for π

<em><u>Volume of sphere is given as:</u></em>

V = \frac{4}{3} \times \pi \times r^3

Where, "r" is the radius of sphere

<em><u>Therefore, volume of candy is given as:</u></em>

V = \frac{4}{3} \times 3.14 \times 3^3\\\\V = 4 \times 3.14 \times 3^2\\\\V = 12.56 \times 9\\\\V = 113.04

Thus volume of candy is 113.04 cubic centimeter

3 0
3 years ago
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