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3 years ago

12

The probability that a student uses the academic resource center on a regular basis is 0.33. in a group of 18 students, what is

the probability that exactly 4 of them use the academic resource center on a regular basis?

1 answer:

pentagon [3]3 years ago

5 0

So here you can make a proportion! .33/18 = x/4 so .33 times 4 = 18x —> (.33 times 4)/18 = x. Plug into calculator to get x

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bill can answer 41 math questions every 20 minutes how many math questions can he answer in 40 minutes and 80 minutes

Annette [7]

20 minutes × 2 = 40 minutes
41 questions × 2 = 82 questions

40 minutes × 2 = 80 minutes
82 questions × 2 = 164 questions

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3 years ago

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F(x) = 5x ^ 2 and g(x) = x + 1 find (fg)(x)

Vilka [71]

According to the question given, $f(x)=5x^2,g(x)=x+1$ (fg)(x) is $f(x).g(x)=5x^3+5x^2$

Which is not given in the options.

Step-by-step explanation:

We are given:

$f(x)=5x^2$

$g(x)=x+1$

We need to find (fg)(x)

Solving:

$(fg)(x)=f(x).g(x)\\f(x).g(x)= 5x^2*(x+1)\\f(x).g(x)=5x^3+5x^2$

According to the question given, (fg)(x) is $f(x).g(x)=5x^3+5x^2$

Which is not given in the options.

Keywords: Composite functions

Learn more about Composite functions at:

#learnwithBrainly

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3 years ago

Who ever gets this answer right will get a brainlest

n200080 [17]

Answer:

The answer is a Line. (2nd option)

Step-by-step explanation:

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3 years ago

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<img src="https://tex.z-dn.net/?f=%285%20%5Csqrt%7B3%7D%20%29%20%7B%7D%5E%7B2%7D%20%20%2B%205%20%7B%20%20%7D%5E%7B2%7D%20%3D%20x

san4es73 [151]

X = 10 , -10

is that what you’re looking for ?

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4 years ago

Myra is evaluating the expression –31.7 + 4.5x, when x = 2.1. –31.7 + 4.5(2.1) –27.2(2.1) –57.12 What was Myra’s error?

Bingel [31]

Answer:

a negative and a positive

Step-by-step explanation:

always equal a negative

and she put x next to 31.7 when x was not meant to be there

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4 years ago

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