1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lord [1]
3 years ago
12

Which of the following gives a valid reason for using the given solution method to solve the system of equations shown?

Mathematics
1 answer:
VikaD [51]3 years ago
8 0

Answer:

C

Step-by-step explanation:

You might be interested in
Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed with a mean of 250 feet and a s
Korvikt [17]

Answer:

On the graphing calculator, use the function normCdf, where

  • lower bound = -9999
  • upper bound = 210
  • mean = 250
  • standard deviation = 46

It will result in normCdf(-9999,210,250,46) ≈ 0.192269 or 19.2269%

6 0
3 years ago
Which function is f(x) equal to f^-1(x)?
Morgarella [4.7K]

Answer:

c. f(x) x+1/x-1

Step-by-step explanation:

To answer this question, we need to check each answer one by one until we find the right one.  

y = (x+6)/(x-6)  

switch x and y  

x = (y+6)/(y-6)  

solve for y  

x(y-6) = y+6  

xy - 6x = y+6  

y(x-1) = 6x+6  

y = (6x+6) /(x-1) = 6(x+1)/(x-1)  

f^-1(x) = 6(x+1)/(x-1)  

y = (x+2)/(x-2)  

switch x and y  

x = (y+2)/(y-2)  

solve for y  

x(y-2) = y+2  

xy -2x = y+2  

y(x-1) = 2x+2  

y = (2x+2)/(x-1)  

f^-1(x) = 2(x+1)/(x-1)  

y = (x+1)/(x-1) ------ correct one  

switch x and y  

x = (y+1)/(y-1)  

solve for y  

x(y-1) = y+1  

xy - x = y+1  

y(x-1) = x+1  

y = (x+1)/(x-1)  

f^-1(x) = (x+1)/(x-1)  

f(x) = f^-1(x)

6 0
3 years ago
Read 2 more answers
How many minutes does it take for mai to run half of the track
Tems11 [23]

Answer:

3.25

Step-by-step explanation:

4 0
3 years ago
HELP!!
torisob [31]

195 is the answer because you replace x with 10

Step-by-step explanation:

825-630=195

3 0
3 years ago
Read 2 more answers
Which graph best represents the solution to this system of inequalities?
Agata [3.3K]

Answer:

D

Step-by-step explanation:

D is the only graph where the shaded region is on 6 and less.

6 0
2 years ago
Other questions:
  • What is one third of 97.50
    15·1 answer
  • PLEASE HELP ME I DONT UNDERSTAND... translation (x,y)→(x−6,y+8)
    11·2 answers
  • What is -4 3/4+2 1/2
    8·1 answer
  • What is 9/8 in simplest from
    11·1 answer
  • I need help!! Describe how to determine the average rate of change between x = 1 and x = 3 for the function f(x) = 3x^3 + 1. Inc
    13·1 answer
  • Are all squares simular true or false
    12·1 answer
  • A principal of $480 earns $108 interest in 5 years . what rate of interest was being paid?​
    9·1 answer
  • 20<br> What is the perimeter of this rectangle?<br> unit 2 post test
    6·1 answer
  • Whats 93, −76, 102, −101, 83, −48 least to greatest
    10·2 answers
  • HELPPP I NEED THE ANSWER FAST PLEASEEE Shirley is buying a $27 scarf. If the sales tax is 7.25% and she hands the cashier $30, h
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!