I did mine work external this. Also, I just took the leaf test, and also I obtained this allisonbrookephotography.com correct. ;-;

Hello

1). Replace f(x) v y.

2). Switch x and also y.

3). Fix for y.

f(x)= 2x-10

y= 2x-10

x= 2y-10

x+10 = 2y

x/2 + 5 = y

y = x/2 + 5

Hope that helped!

Disclaimer:

Always double check her allisonbrookephotography.com with a trustworthy source, together mistakes have the right to be made.

allisonbrookephotography.com:

The allisonbrookephotography.com come your concern is z = Step-by-step explanation:

Process

I"ll resolve this difficulty using proportions, i hope it helps you

We consider the nearby side the both triangle

Adjacent side tiny triangle = x surrounding side large triangle = 10

Proportion of this sides = Now, consider the opposite next of both triangles

Opposite next fo small triangle = 2 the contrary side big triangle = x

Proportion = Now, equal both proportions and solve for x x² = 20

x = x = 2 Using Geometric mean

x = Using the Pythagorean organize to find z

z² = (√20)² + 2²

z² = 20 + 4

z² = 24

z = 7 0
9 months ago

One hopeful number is 5 less than twice a 2nd number, and also their product is 140. Discover the 2 numbers.

You are watching: What is the inverse of the function f(x) = 2x – 10?

Pepsi <2>

x, y - two positive numbers

one optimistic number is 5 much less than double a second number

(1) x = 2y - 5

their product is 140

(2) xy = 140

substitute indigenous (1) to (2)

(2y - 5)y = 140 use distributive property

(2y)(y) - (5)(y) = 140

2y² - 5y = 140 subtract 140 native both sides

2y² - 5y - 140 = 0

a = 2, b = -5, c = -140

b² - 4ac = (-5)² - 4(2)(-140) = 25 + 1120 = 1145 allisonbrookephotography.com: 3/10

Step-by-step explanation: Since our platform of 2 and 5have no

factors in common, our least typical denominator is 2 · 5 or 10.

In order to gain a denominator of 10 in every fraction,

we main point top and also bottom the the very first fraction by 5

and top and bottom that the second portion by 2.

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That gives us 5/10 - 2/10 which is 3/10.

5 0

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