Answer:
The domain is 
Step-by-step explanation:
Given functions 
and 
Subtract these two functions:
Plot these difference on the coordinate plane (see attached diagram). This function is defined for all vlues of x, so the domain is
Answer:
$10 coins: 21
$20 coins: 24
Step-by-step explanation:
heyy me again
So we can create 2 equations where
x = number of $10 coins
y = number of $20 coins:
x + y = 45
10x + 20y = 690
we can move equation 1 around so that we can get a value of x
x = 45 - y
now we can substitute x into the second equation
10(45 - y) + 20y = 690
450 - 10y + 20y = 690
10y = 240
y = 24
Now plug in y back into the first equation
x = 45 - y
x = 45 - 24
x = 21
Answer:
the answer to this question is 1
Slope = (2+6)/(2+2) = 8/4 = 2
answer:
slope = 2
Answer:C- 3x - 7y and 3y - 7x
Step-by-step explanation:
