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ratelena [41]
3 years ago
7

Suppose that the function f ( x ) = 2x + 12 represents the cost to rent x movies amonth from an internet movie club. Makayla now

has $10. How many more dollars does Makayla need to rent 7 movies next month?
Mathematics
2 answers:
Stella [2.4K]3 years ago
5 0
Calculating f(7)

f(7) = 2.7 + 12
f(7) = 14 + 12
f(7) = 26

He/She needs 26 - 10 = 16 dollars
Dafna11 [192]3 years ago
3 0
x=7\ \ \ \ \Rightarrow\ \ \ f(x)=2\cdot7+12=14+12=26\ [\$]\\\\\$26-\$10= \$16\\\\Ans.\ Makayla\ need\ \ \ \$16.
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3 years ago
During summer weekdays, boats arrive at the inlet drawbridge according to Poisson distribution at a rate of 3 per hour. In a 2-h
mrs_skeptik [129]

Answer:

The probability that no boats arrive is 2.48\times 10^{-3}.

Step-by-step explanation:

Poisson distribution:

Poisson distribution is a statistical distribution that helps to find out the probability of a certain is likely occur a specified period of time.

P(X=x)=\frac{e^{-\lambda t}(\lambda t)^x}{x!}

\lambda = rate.

Given that, Poisson distribution at a rate of 3 per hour.

\lambda = 3

t=2

x=0

The probability that no boats arrive is

P(X=0)=\frac{e^{-2\times 3}(2\times 3)^0}{0!}

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6 0
3 years ago
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Bond [772]
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3 0
2 years ago
Find the output, k, when the input, t, is -7−7minus, 7.<br> k = 10t-19k=10t−19
sleet_krkn [62]

The value of k is -89

Explanation:

The given expression is k=10t-19

We need to determine the output k, when the input t is -7

<u>Output k:</u>

The value of the output k can be determined by substituting the input t=-7 in the expression k=10t-19

Thus, we have,

k=10(-7)-19

Multiplying the terms 10 and -7, we have,

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Simplifying, we get,

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7 0
3 years ago
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Vinvika [58]

Answer:

Tan T = 7/24

Step-by-step explanation:

Firstly, please check attachment to have a picture of the triangle we are solving.

Now, we are concerned with calculating the ratio that represents the tangent of angle T.

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In this question, our opposite is 7 while the adjacent is 24.

Thus Tan T = 7/24

6 0
3 years ago
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