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2 years ago

If you roll three fair coins what is the probability that youll get at least 2 heads

Mathematics

2 answers:

blagie [28]2 years ago

6 0

Answer:

1/2 or 50%

Step-by-step explanation:

You can use some casework to find your answer.

The first case - only two of the coins are heads.

The possible ways that this could be are:

THH

HTH

HHT

The second case - all three coins are heads.

In this instance, there is only one way that this could happen:

HHH

This is a total of 4 desired outcomes out of 2*2*2=8 possible outcomes, which is a probability of 4/8=1/2. Hope this helps!

Dennis_Churaev [7]2 years ago

6 0

Answer: 12.5

Step-by-step explanation:

100/2=50/2=25/2=12.5

HOPE THIS HELP

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Write a real world problem for: f + 5 = 9

Triss [41]

9-5=4 Therefore f=4
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2 years ago

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if 500 is deposited into an account earning 6 percent simple interest what is the future value in 6 years how do you work it put

djverab [1.8K]

$\bf \qquad \textit{Simple Interest Earned Amount}\\\\
A=P(1+rt)\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{original amount deposited}\to& \$500\\
r=rate\to 6\%\to \frac{6}{100}\to &0.06\\
t=years\to &6
\end{cases}
\\\\\\
A=500(1+0.06\cdot 6)$

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3 years ago

I came up with 4 let me know if that's right

Anastasy [175]

Are you doing FLVS? IF so I need hep

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2 years ago

Sven got a $150 gift card function A(n) 150 12.30n gives the amount of money left on the gift card after n number of visits to t

lorasvet [3.4K]

Answers:

1. The n-intercept is 12. That means after 12 visits the amount of money on the gift car is $0.

2. The A(n)-intercept is 150. Before the visits, the amount of money on the gift car is $150.

Solution:

Amount of money on the gift card after n number of visits: A(n)=$150-$12.50 n

A(n)=150-12.50 n

1. n-intercept

A(n)=0→150-12.50 n =0

Solving for n: Subtracting 150 both sides of the equation:

150-12.50 n-150 = 0-150

-12.50 n = -150

Dividing both sides of the equation by -12.50:

(-12.50 n) / (-12.50) = (-150) / (-12.50)

n=12

The n-intercept is n=12; for n=12→A(12)=0. Point (n, A(n))=(12,0)

2. A(n) intercept

n=0→A(0)=150-12.50 (0)

A(0)=150-0

A(0)=150

The A(n) intercept is 150; for n=0→A(0)=150. Point (n, A(n))=(0,150)

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2 years ago

What divisor is represented by the synthetic division below? –5 5 x + 5 x – 5

Tju [1.3M]

For this case, the dividend is given by:
$2x ^ 3 + 10x ^ 2 + x + 5
$
We note that the following numbers:
2, 10, 1, 5
They are the coefficients of the polynomial and they are in the upper part of the division.
The number -5 is the opposite value of the divisor constant.
Therefore, the divisor is given by:
x + 5
Answer:
The divisor is:
x + 5

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3 years ago

Read 2 more answers