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Viktor [21]
3 years ago
13

Find the inverse of the function. f(x)=3 root x/9 -4

Mathematics
1 answer:
Anastasy [175]3 years ago
5 0

Step-by-step explanation:

Explanation:

y

=

√

x

+

1

+

3

x

=

√

y

+

1

+

3

x

−

3

=

√

y

+

1

(

x

−

3

)

2

=

(

√

y

+

1

)

2

x

2

−

6

x

+

9

=

y

+

1

x

2

−

6

x

+

8

=

y

This is a quadratic, therefore it is a function.

Hopefully this helps!

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Frank bought 2 CDs that were each the same price. Including sales tax, he paid a total of 24.20 Each CD had a tax of 0.60 What w
stira [4]

Answer:

11.5

Step-by-step explanation:

Frank paid a total of 24.2 for the 2 CDs, so, for each CD, he paid the total value divided by two:

Price of each CD = 24.2 / 2 = 12.1

Each CD had a tax of 0.6, so, to calculate the price of each CD before tax, we just subtract the price of each CD by the value of the tax for each CD:

Price of each CD before tax = 12.1 - 0.6 = 11.5

The price of each CD before tax is 11.5

8 0
3 years ago
The ratio of the number of boys to the number of girls at school is 4:5. a. What fraction of the students are boys? b. If there
Sergio [31]

Answer: a. 4/9

b. 270 students

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A surveyor has poles A, B, and C set to form a right triangle with the right angle at B. If the distance from A to B is 35 meter
tia_tia [17]
A^2+b^2=c^2 
35^2+25^2=25^2
So the answer is 25
6 0
3 years ago
Which statements are true about the graph of the function f(x) = 6x – 4 + x2?
kaheart [24]
Write the function as
f(x) = x² + 6x - 4

Note that
x² + 6x = (x + 3)² - 9

Therefore
f(x) = (x  3)² - 9 - 4
      = (x + 3)² - 13

The vertex is at (-3, -13)., and the curve opens upward.
The axis of symmetry is x = -3.

Answer:
The vertex of the function is (-3, 13).
The graph increases over the interval (-3, -∞)


3 0
3 years ago
Please answer ASAP! Photo below!
Maru [420]
B


-2 1/4 = -9/4
(-9/4)/(-2/3)
7 0
3 years ago
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