The answer is 6/-10. you start by inputting the given numbers into their places as a variable. you get~ 3+(-2)(-1) over -(-2+12) then simplify it down to~ 3+3 over -(10). simply further to get~ 6 over -10
Answer:
h = 7/3 and 2
Step-by-step explanation:
9h² - 18h - 21h + 42
9h² - 39h + 42
factors are:
(3h - 7)(3h - 6)
h = 7/3 and 2
Answer:
90 beats per minute
Explanation:
1/6 of 1 minute is 10 seconds. You multiply 15 x 6 and get 90. Which is how much her heart beats per minute.
Answer:
f(x)⁻¹ = 3x/(2 - x)
Step-by-step explanation:
Find the inverse of f(x) = 2x/(x+3)
The first step is to let f(x) = y
y = 2x/(x+3)
Then make x the subject of the formula
y = 2x/(x+3)
y(x + 3) = 2x
yx + 3y = 2x
yx - 2x = -3y
x(y - 2) = -3y
x = -3y/(y - 2)
∴ f(x)⁻¹ = -3x/(x - 2)
Dividing both numerator and denominator by -1;
f(x)⁻¹ = 3x/(2 - x)
The tenths come directly after the . so in this case the tenths is 3
