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2 years ago

Curtis threw 18 darts at a dartboard. 48% of his darts hit the bull’s-eye. How many darts did not hit the bull’s-eye?

Mathematics

1 answer:

Pepsi [2]2 years ago

4 0

Change 48% to 0.48
0.48 x 18 = 8.64
rounded would be 9

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A recently published study shows that 50% of Americans adults take multivitamins regularly. Another recent study showed that 20.

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Answer:

The probability that a randomly selected American adult takes multivitamins regularly and works out regularly is 0.103

Step-by-step explanation:

p(Americans adults take multivitamins regularly) = 50% = 0.50

p(American adults work out regularly) = 20.6 = 0.206

p(Americans adults take multivitamins regularly and American adults work out regularly) = 0.50* 0.206 = 0.103

Thus, p(Americans adults take multivitamins regularly and American adults work out regularly) = 0.103

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3 years ago

Mr. Heng must maintain a minimum daily balance of $500 in his checking account to avoid a monthly service fee. Write an inequali

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B>$500? If this is an equality, but it is true

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2 years ago

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A California water company has determined that the average customer billing is $1,250 per year and the amounts billed have an ex

Tcecarenko [31]

Answer:

Mean $\mu = \dfrac{1}{\lambda }= 1250$

$\lambda = \dfrac{1}{1250}$

$P(X > 5000) = 0.0183$

$P(X > 1250) =0.3679$

Step-by-step explanation:

From the given information:

a.)

Mean $\mu = \dfrac{1}{\lambda }= 1250$

$\lambda = \dfrac{1}{1250}$

Let consider X to be a random variable that follows an exponential distribution; then:

P(X) = 1 - $e^{- \lambda x}$ since $\lambda > 0$

b.)

The required probability that a random chosen customer would spend more than $5,000 can be computed as:

$P(X > 5000) = 1 - \bigg [ 1 - e ^{- \dfrac{5000}{1250}} \bigg]$

$P(X > 5000) =e^ {-4$

$P(X > 5000) = 0.0183$

c.)

$P(X > 1250) = 1 - \bigg [ 1 - e ^{- \dfrac{1250}{1250}} \bigg]$

$P(X > 1250) =e ^{- 1$

$P(X > 1250) =0.3679$

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2 years ago

The angle of elevation from L to K measures 55°. If JK = 26, find JL. Round your answer to the nearest tenth. 26.8 37.1 21.3 14.

Jet001 [13]

Using the given information, it's not possible to answer the question.
Using the given information, we have no idea where 'J' is. For all we
know, it might not even be on the same planet as 'L' or 'K'.

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3 years ago