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MAXImum [283]
3 years ago
15

Please answer correctly !!!!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Olin [163]3 years ago
4 0

U is a point in the line segment TV

TU + UV = TV

TU = 12

UV = 3

<h3>TV = 12+3 = 15 </h3>

<h2><u>TV = 15</u></h2>

Hope this will help...

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Which equation is the inverse of y = 9x2 - 4?
m_a_m_a [10]

Answer:

The inverse will be:

y' = \frac{\sqrt{x+4}}{3}

Step-by-step explanation:

In order to find the inverse of the equation, we do a variable change, since we are finding the inverse, :

f(x)  = 9x^{2} - 4

y = 9x^{2} - 4

x = 9y' ^{2} - 4

Now solve for y'.

First add 4 in both sides of the equation and change to the left y'.

x + 4= 9y'^{2} - 4+4

9y'^{2} = x + 4

Second divide by 9

9y'^{2}/9 = (x + 4)/9

y'^{2} = (x + 4)/9

Now you will have to clear y, with the square root.

[tex]y'^{\frac{2}{2}} = \sqrt{x + 4}  / \sqrt{9}[/tex] =

Simplifying terms

y' = \frac{\sqrt{x+4}}{3}

f^{-1}(x)  = \frac{\sqrt{x+4}}{3}

You can check the answer by doing the evaluation of the following equation:

(f o f^{-1} ) (x)

substitute the equation for y' or inverse function f^{-1}

f(\frac{\sqrt{x+4} }{3})

Now substitue the value into f(x)

You will have

= 9(\frac{\sqrt{x+4} }{3}} )^{2}  - 4\\\\Solving\\\\9(\frac{{x+4} }{9}} )  - 4

=x

5 0
3 years ago
Solve for the variable
liraira [26]

Answer:

y = 25

Step-by-step explanation:

30=\frac{6}{5} y\\\\\frac{6}{5} y=30\\\\(\frac{6}{5} y)5=30*5\\\\6y=150\\\\\frac{6y=150}{6}\\\\\boxed{y=25}

Hope this helps!

8 0
3 years ago
Estimating a square root.
Digiron [165]
I'm sorry but I'm not into square roots yet :(
5 0
3 years ago
Read 2 more answers
Find a function g for which g'(4)=g'(-8)=0
morpeh [17]

one correct answer is g(x)=0.

g'(4)=0 and g'(-8)=0

8 0
3 years ago
Roberto has eight coins that are all dimes or nickels. They are worth $0.50. How many dimes and how many nickels does Roberto ha
natita [175]

Answer: Roberto has 2 DIMES and 6 NICKELS.

Step-by-step explanation:

<em><u>Equation 1:</u></em> 2 * 10 = 20 cents (Dimes)

<em><u>Equation 2:</u></em> 6 * 5 = 30 cents (Nickels)

<em> </em><u><em>Solution:</em></u><em> </em>30 + 20 = 50 cents

7 0
3 years ago
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