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Naddika [18.5K]
4 years ago
13

What is the inverse of the function f(x) = 2x – 10?

Mathematics
1 answer:
Papessa [141]4 years ago
7 0

Answer:

(x+10)/2

Step-by-step explanation:

interchange the variables x and y

x=2y-10

solve for y

y=x+10/2

You might be interested in
X^-9*x^-2 <br> a 1/x^18<br> b 1/x^11<br> c x^18<br> d x^11
d1i1m1o1n [39]
Exponent rule : a^-x = 1/a^x

x^-9 * x^-2 = 
1/x^9 * 1/x^2 = (when multiplying exponents with same base, add exponents)
1/x^(9 + 2) =
1/x^11

4 0
3 years ago
Find S11 for 1 + 2 + 4 + 8 +
Free_Kalibri [48]
Evaluating the given sequence, it is evident that the next number is twice the number prior to it. Thus, the given is a geometric sequence with first term (a1) equal to 1 and common ratio of 2. The geometric series may be calculated by the equation,
 
                                            Sn = a1 x (1 - r^n) / (1 - r)

where Sn is the sum of n terms in this case, n = 11. 
Substituting the known values, 
 
<span>                                      Sn = 1 x (1 - 2^11) / (1 - 2) = 2047
</span>
Thus, S11 is 2047. 
4 0
4 years ago
What is 2 2/3 x 5/8<br> in simplest form?
Alecsey [184]

Answer:

5/3

Step-by-step explanation:

2 2/3 * 5/8

~Turn both into improper fractions

8/3 * 5/8

~Multiply

40/24

~Simplify

5/3

Best of Luck!

8 0
3 years ago
What is the equation of the line that passes through the points (1, 1) and (5, 5)?
OLEGan [10]

Answer:

(5-1)/(5-1)= 4/4= 1

y - 1 = x - 1

y = x

Step-by-step explanation:

5 0
3 years ago
A bookstore is deciding what price it should charge for a certain book. After research, the store finds that if the book's price
Wewaii [24]

Answer:

[130-5(13)] (13) = $845   max revenue.

Step-by-step explanation:

If the number of books sold = 130-5p      then revenue will be   (130-5p)p = -5p^2+130p

the maximum can be found by graphing or by the fact that the max will be   -b/2a   =   -130/-10 = 13 dollars/book

 

[130-5(13)] (13) = $845   max revenue.

6 0
3 years ago
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