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valina [46]
4 years ago
12

Which equation would help determine the cost of 2 folders?

Mathematics
1 answer:
mihalych1998 [28]4 years ago
7 0
The answer to your question would be b.
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16. You found a shortcut to school that saves 5 minutes off of taking the freeway. About 1 in every 10 trips
kykrilka [37]

Answer:

  it saves 2.5 minutes

Step-by-step explanation:

The expected value of a random variable is the sum of products of possibilities and the probability of each.

Here, you have a probability of 0.9 of saving 5 minutes, and a probability of 0.1 of adding 20 minutes.

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The expected value of the shortcut is ...

  0.9(-5) +0.1(20) = -4.5 +2.0 = -2.5

The shortcut is expected to save 2.5 minutes on average.

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<em>Additional comment</em>

The probability of 0.9 comes from the 9 of 10 trips that result in a time saving.

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2 years ago
Enter a numerical expression for the word expression 10 decreased by 4
bulgar [2K]
10-4=6. can it be like this.
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mamaluj [8]

Answer:

the answer to your question is false.

Step-by-step explanation:

These ratios are not equivalent

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3 years ago
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For f left parenthesis x right parenthesis equals StartRoot x EndRoot and g left parenthesis x right parenthesis equals 4 x plus
lara31 [8.8K]

Answer:

Step-by-step explanation:

Given that there are two functions f and g as

f(x) = \sqrt{x} \\g(x) =4x+9

We have to find the composition of functions.

Composition functions are calculated as the first function inside bracket and then the outside function of answer inside.

a)fog= f{g(x)} =f(4x+9) = \sqrt{4x+9}

b) gof = g{f(x)} = g(\sqrt{x} )=4\sqrt{x} +9

c) fof = f(\sqrt{x} ) = \sqrt[4]{x}

d) gog = g(4x+9) = 4(4x+9)+9\\= 16x+45

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Step-by-step explanation:

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