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2 years ago

Help!!

Mathematics

2 answers:

Xelga [282]2 years ago

6 0

Answer:

D. 63%

Step-by-step explanation:

the white marble was picked out 41 of the 65 times, so 41/65

divide 41 by 65 in your calculator and you get .6307

then multiply it by 100 because it asked for a percentage and you get 63%

Ta-Da!

Zarrin [17]2 years ago

4 0

Answer:

63%

Step-by-step explanation:

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The leaning tower of Pisa in Italy appears to be cylindrical in shape. It’s height is about 56 meters. If the volume of the towe

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Answer:1+1×2=4

Step-by-step explanation:

1 +1 =2 ×2 =4

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2 years ago

James folds a piece of paper in half several times,each time unfolding the paper to count how many equal parts he sees. After fo

Snezhnost [94]

Answer:

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The needed function is $y = 2 ^n$

Step-by-step explanation:

Let us assume the piece of paper James decides to fold is a SQUARE.

Now, let us assume:

n : the number of times the paper is folded.

y : The number of parts obtained after folds.

Now, if the paper if folded ONCE ⇒ n = 1

Also, when the pap er is folded once, the parts obtained are TWO equal parts.

⇒ for n = 1 , y = 2 ..... (1)

Similarly, if the paper if folded TWICE ⇒ n = 2

Also, when the paper is folded twice, the parts obtained are FOUR equal parts.

⇒ for n = 2 , y = 4 ..... (2)

⇒ $y = 2^2 = 2^n$

Continuing the same way, if the paper is folded SEVEN times ⇒ n = 7

So, $y = 2^ n = 2^7 = 128$

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Lastly, if the paper is folded ELEVEN times ⇒ n = 11

So, $y = 2^ n = 2^{11} = 2048$

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Hence, there will be total 2048 parts of the given paper if James if able to fold the paper eleven times.

And the needed function is $y = 2 ^n$

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3 years ago

How many subsets are there in (a,b,c,d,e,f,h,i)?

Bond [772]

Answer:

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Step-by-step explanation:

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Number of subset can be calculated from the formula

${2}^{n}$

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2 years ago

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kherson [118]

Answer:

Step-by-step explanation:

Since 1cm=10mm

(big to small multiply, small to big divide)

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2 years ago

A portfolio has average return of 13.2 percent and standard deviation of returns of 18.9 percent. Assuming that the portfolioi's

wlad13 [49]

Answer:

B. 0.835

Step-by-step explanation:

We can use the z-scores and the standard normal distribution to calculate this probability.

We have a normal distribution for the portfolio return, with mean 13.2 and standard deviation 18.9.

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Then, the z-scores for X=-43.5 and 32.1 are:

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Then, the probability that the portfolio's return in any given year is between -43.5 and 32.1 is:

$P(-43.5$

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2 years ago