(01.02 LC)

1 answer:

3 0

So to find the inverse of this function, replace f(x) with y, switch x and y, then solve for y. This is what it'll look like: $x=\frac{y-5}{3}$

Firstly, multiply both sides by 3: $3x=y-5$

Next, add both sides by 5 and replace y with f^-1 (x) and your inverse equation is: $3x+5=f^{-1}(x)$

Now that we have the inverse, plug in 3 into it and solve:

$3(3)+5=f^{-1}(3)\\ 9+5=f^{-1}(3)\\ 14=f^{-1}(3)$

In short, the answer is 14, or the second option.

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a 50 centermeter piece of wire is bent into a circle what is the area of this circle round to the nearest whole number use 3.14

VikaD [51]

When a wire is bent to form a circle then its length represents the circumference of the circle formed. Therefore in our case the circumference of the circle is 50 cm. we can use this to determine the radius of the circle and then determine the area. Circumference of a circle is given by \pi × diameter, (\pi = 3.142)
thus diameter will be given by 50 cm ÷ 3.142 = 15.9134 cm
the radius will be 15.9134 ÷2 = 7.9567 cm or ≈ 7.96 cm
The area of a circle is given by \pi × square of radius
Area = 3.142 × 7.96×7.96 = 199.0821 square cm
Thus the area of the circle formed is ≈ 199.08 square cm ( 2 decimal places)

6 0

2 years ago

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Fourteen seniors were asked how many minutes they spent on doing their homework the previous night. The data is displayed below.

Nadusha1986 [10]

Answer:

Step-by-step explanation:

We need to find the median of:-

73 75 87 65 69 62 81 64 68 101 74 71 89 87

First, we need to arrange the numbers in ascending order as below:-

62, 64, 65, 68, 69, 71, 73, 74, 75, 81, 87, 87, 89, 101

Since there are a total of 14 numbers, let's split it up into two halves (each of seven numbers)