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nevsk [136]
3 years ago
11

Inverse functions f (x) = -3x +2 find f -1 (7)

Mathematics
1 answer:
jekas [21]3 years ago
7 0
y = f(x) \\  \\ x = f^{-1} (y)

Therefore, set y = 7
y = -3x+2 = 7

Solve for x
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The safety instructions for a 20 foot ladder say the ladder should not be inclined more than 70 degrees with the ground. suppose
Romashka [77]

Answer: the distance of the base of the house to the foot of the ladder is 6.84 feet

Step-by-step explanation:

The scenario is shown in the attached photo.

Right angle triangle ABC is formed when the ladder leans against the wall of the house.

AC = the height of the ladder

AB = x feet = distance of the base of the house to the foot of the ladder

BC is the wall of the building.

To determine x, we will apply trigonometric ratio

Cos # = adjacent/hypotenuse

Where

# = 70 degrees

Hypotenuse = 20

Adjacent = x

Cos 70 = x/20

x = 20cos70

x = 20 × 0.3420

x = 6.84 feets

4 0
3 years ago
An urn contains six red balls and four green balls. A sample of seven balls is selected at random.
KIM [24]

There are 10 balls in the Urn Total.

Red: 6

Green: 4

Question One: The probability that five red and two green is selected is likely. (as that is over half for both)

Question Two: Impossible. There is only 6 red balls, and 7 are taken from the urn. Thus it would at most be possible for 6 red and 1 green.

Question Three: At least four is likely, as  there is more red then green in the Urn.

Hope I helped!

(Mark Brainliest if you can please!)

5 0
3 years ago
I will give brainiest to whoever answers correctly !!
son4ous [18]
August 22nd should be the date 120 days after April 24th
7 0
3 years ago
According to the graph, what is the value of the constant in the equation below?
777dan777 [17]

You answer is 12 because that is where on the graph it is the most constant

5 0
3 years ago
Who feels to talk
zubka84 [21]

Answer:

I gotcu

The answer is 30.25

Step-by-step explanation:

5.5 divided by 4 equals 1.375

22 times 1.375 equals 30.25

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3 years ago
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