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Phoenix [80]
4 years ago
6

Randy was playing "Double Heads," a game in which he would flip two coins at a time. He recorded the number of times he flipped

two heads at the same time. He flipped the coins 50 times, and there were 20 times when both coins landed heads up, which he recorded as 20/50. How does 20/50 compare to 50%?
Mathematics
1 answer:
Bezzdna [24]4 years ago
8 0

Answer:

Kindly check explanation

Step-by-step explanation:

Total number of coin flips = 50

Number of times both coins landed head up = 20.

Hence probability of having two heads :

Probability = required outcome / Total possible outcomes

P(both heads up) = 20/50

Comparing 20/50 to 50%

We convert 20/50 to percentage :

(20/50) × 100%

0.4 × 100% = 40%

20/50 is equivalent to 40%

Hence, 40% is less than 50%

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3 years ago
You have to solve the problem \frac{3}{4}-\frac{1}{8} ​4 ​ ​3 ​​ − ​8 ​ ​1 ​​ . After you make the denominators the same, what d
worty [1.4K]

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If you are doing subtraction with fractions you need to make a common denominator and subtract the numerators from each other

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4 years ago
a person is standing on top of a smaller building looking across the street at a taller building, which is 260 feet away horizon
Anuta_ua [19.1K]

The height of the smaller building is <u>94.63 feet</u>, computed using the trigonometric ratios.

In the question, we take AB to be the taller building, where A is its top and B is its base, CD to be the shorter building, where C is its top and D is its base, and CE to be the perpendicular from C to AB.

Given that the horizontal distance between the two buildings is 260 feet, we can say that BC = CE = 260 feet.

The angle of elevation from the top of the shorter building to the top of the taller building is 30°, that is, ∠ECA = 30°.

The angle of depression from the top of the shorter building to the base of the taller building is 20°, that is, ∠ECB = 20°.

When ∠ECB = 20°, then ∠CBD = 20°, as they are alternate angles.

We are asked to find the height of the shorter building, that is, we are asked to find CD.

In ΔCBD,

tan ∠CBD = CD/BD {perpendicular/base},

or, tan 20° = CD/260,

or, CD = 260*tan 20° = 260*0.36397023426 {∵ tan 20° = 0.36397023426},

or, CD = 94.6322609092.

Therefore, the height of the smaller building is <u>94.63 feet</u>, computed using the trigonometric ratios.

Learn more about heights and distances at

brainly.com/question/2004882

#SPJ4

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2 years ago
How do I use the intermediate value theorem to prove every polynomial of odd degree has at least one real root?
Anon25 [30]

Answer:

Step-by-step explanation:

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