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3 years ago

If f(x) = 5x - 4 and g(x) = x2, what is (gºf)(2)?

Mathematics

2 answers:

Alex787 [66]3 years ago

6 0

Answer:

Step-by-step explanation:

(g•f)(2) = g(f(2))

Since f(x) = 5x - 4

f(2) = 5(2) - 4 = 10 - 4 = 6

(g•f)(2) = g(f(2))

g(f(2)) = g(6) = (6)^2 = 36

yulyashka [42]3 years ago

3 0

Step-by-step explanation:

set F function in g function:

gof(x) = (5x-4)2

simplified:

gof(x) = 10x-8

put 2 in function

gof(2) = 10(2) - 8 => 20-8 => 12

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svetoff [14.1K]

Answer:

Her probability of success is 1/2

Step-by-step explanation:

Firstly, we have to calculate the area of the entire board

That would be the rectangle of the measure 50 cm by 40 cm

We have the area as the product of this two

That would be 50 * 40 = 2,000 cm^2

Now, the value calculated is the area of the entire possible landing area

Secondly, we need to get the area that counts as a success

that would be the area of the triangle that has a base of 50 cm and a height of 40 cm

The area of this is the product of the two divided by 2

we have this as ;

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3 years ago

Could someone please help me with this?

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Answer:

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Step-by-step explanation:

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3 years ago

A 90 percent confidence interval for the slope of a regression line is determined to be (-0.181, 1.529). Which of the following

GenaCL600 [577]

Answer: a. The correlation coefficient of the data is positive.

Step-by-step explanation:

Estimated slope of sample regression line = $\dfrac{Upper \ limit + lower\ limit}{2}$

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Estimated slope of sample regression line = $\dfrac{-0.181+1.529}{2}$

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⇒Correlation coefficient(r) must be positive, So a. is true.

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Answer:

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