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NARA [144]
3 years ago
13

The five patterns are: circle, plus sign, wavy lines, empty box, and star. One hundred trials were conducted, and your very impr

essive friend guessed right on 41 of those trials. What proportion of the cards would I expect my friend to guess correctly?
Mathematics
1 answer:
avanturin [10]3 years ago
3 0

Answer:

The proportion is \frac{41}{100} = 0.41 or 41%

Step-by-step explanation:

Hello!

The expected proportion is calculated as "the number the event of interest has occurred"(i.e. success) divided the total of trials.

In this case, your success is the number of times your friend guessed a card correctly in 100 trials.

The proportion is \frac{41}{100} = 0.41 or 41%

I hope it helps!

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An architect designs a rectangular flower garden such that the width is exactly​ two-thirds of the length. If 310 feet of antiqu
Alona [7]

The length and width of the garden are 93 feet and 62 feet respectively.

<u><em>Explanation</em></u>

Suppose, the length of the rectangular garden is x feet.

As the width is exactly​ two-thirds of the length, so the width of the garden will be: \frac{2x}{3} feet.

310 feet of antique picket fencing are to be used to enclose the​ garden. It means, <u>the perimeter of the garden is 310 feet</u>.

<u>Formula for perimeter of rectangle</u> = 2(length+width)

So, the equation will be....

2(x+\frac{2x}{3})= 310\\ \\ x+\frac{2x}{3}= \frac{310}{2}\\ \\ \frac{5x}{3}=155\\ \\ 5x= 465\\ \\ x= \frac{465}{5}=93

So, the length of the garden is 93 feet and the width is (\frac{2*93}{3})=62 feet.

7 0
3 years ago
I need help solving for x
Vlada [557]

Answer:

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Step-by-step explanation:

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please add a thanks and a brainliest

hope this helped

6 0
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Let f(x) = 8x3 + 16x2 − 15 and g(x) = 2x + 1. Find f of x over g of x
vladimir1956 [14]

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Answer:

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Step-by-step explanation:

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