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faust18 [17]
3 years ago
8

find the surface area of a right square pyramid if the area of the base is 144 cm squared and the height of the pyramid is 42 cm

.
Mathematics
1 answer:
xxTIMURxx [149]3 years ago
4 0
Area of a pyramid is ⅓ * area of Base * height

or ⅓ * 144 * 42 or 2016 cm³
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dem82 [27]
The answer would be 0.0043478261
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4 years ago
if the probability that the islanders will beat the rangers in a game is 0.44,what is the probability that the islanders will wi
Rama09 [41]

Answer:

30.91% probability that the islanders will win exactly one out of four games in a series against the rangers

Step-by-step explanation:

For each game, there are only two possible outcomes. Either the Islanders win, or they do not. The probability of the Islanders winning a game is independent of other games. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

The probability that the islanders will beat the rangers in a game is 0.44

This means that p = 0.44

What is the probability that the islanders will win exactly one out of four games in a series against the rangers? ​

This is P(X = 1) when n = 4. Then

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 1) = C_{4,1}.(0.44)^{1}.(0.56)^{3} = 0.3091

30.91% probability that the islanders will win exactly one out of four games in a series against the rangers

6 0
3 years ago
Add up the answer first to see of these correct or incorrect, if incorrect explain why it is not equal.
Stells [14]

Answer:

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2) incorrect

Step-by-step explanation:

-2x-2x = 0 ?

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Not always true, so incorrect

x+x = x² ?

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They will be equal if x = 0 or 2.

Not always true so incorrect

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Answer:

28 inches of the board

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Your answer is5x^4 * sqrt 3x
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3 years ago
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