All categories

2 years ago

23. Two coins are tossed. Alan gets a point if the coins match and Sondra gets a point if they do not match.

Mathematics

2 answers:

Fudgin [204]2 years ago

7 0

The correct answer is C. Alan and Sondra have the same chance of winning.

There is a same chance of the being the same as it is not being the same. Thus, they both have an equal chance of winning.

Hope this helps!

Keith_Richards [23]2 years ago

5 0

Answer:

C. They have the same chance of winning.

Step-by-step explanation:

Probability (2 tails) = 1/2 * 1/2 = 1/4

Probability( 2 heads = 1/2 * 1/2 = 1/4.

Therefore the Probability they match = 1/4 + 1/4 = 1/2.

The probability of they don't match = 1 - 1/2 = 1/2 because all probabilities add up to 1. There are only 4 possible results and their probabilities must add up to 1.

You might be interested in

Is 9-z polynomial ?

storchak [24]

Answer:

Step-by-step explanation:

5 0

2 years ago

A migraine sufferer took Two 400mg doses of naproxen. The half-life for

12345 [234]

Answer:

If y(t) is the mass (in mg) remaining after t years, then y(t) = y(0) (0.5)^{t/T} = 400 (0.5)^{t /4}, where T is the half-life period and y(0) is the amount at t = 0 years (initial).

Then at t = 20:

y(20) = 400 (0.5)^{20 /4} = \text{12.5 mg}

Step-by-step explanation:

7 0

2 years ago

Lim 1 + cos TX<br>5.<br>x>1 tanưrex

Brums [2.3K]

Answer: 1/2

$\lim_{x \to 1}\frac{1+cos \pi x}{tan^{2}\pi x }\\\\ = \lim_{x \to 1} \frac{1+cos\pi x}{\frac{sin^{2}\pi x }{cos^{2}\pi x } } \\\\\\= \lim_{x \to 1}\frac{cos^{2}\pi x(1+cos\pi x) }{sin^{2}\pi x } \\\\\\= \lim_{x \to 1} \frac{cos^{2}\pi x(1+cos\pi x)}{1-cos^{2}\pi x } \\\\= \lim_{x \to 1} \frac{cos^{2}\pi x }{1-cos\pi x} \\\\= \lim_{x \to 1}\frac{cos^{2}\pi .1 }{1-cos\pi .1}\\\\= \lim_{x \to 1}\frac{1}{1-(-1)}\\\\=\frac{1}{2}$

Step-by-step explanation:

5 0

2 years ago

Which expression is equivalent to 8 times d times d

sveticcg [70]

Answer:

That is, they are equivalent expressions. Two expressions are said to be equivalent if they have the same value irrespective of the value of the variable(s) in them. Example 1: Are the two expressions 2y+5y−5+8 and 7y+3 equivalent?

Step-by-step explanation:

4 0

2 years ago

What is the maximum value for the function on the interval [-2,3]?

andreev551 [17]

I think its number 2

7 0

3 years ago

Read 2 more answers