Answer:
y axis grows side to side I think
X = 0 is the smallest x can be. Anything smaller and it wouldn't make any sense because negative time values make no sense.
x = 7 is the largest x can be. Why? Because plugging in x = 7 leads to
f(x) = 1575 - 225x
f(7) = 1575 - 225*7
f(7) = 1575 - 1575
f(7) = 0
so at year 7, the value is 0 dollars. Any x value larger than 7 will produce negative dollar values, which make no sense.
Another way to get x = 7 is to notice that 1575 - 225x = 0 has the solution x = 7
We'd solve for x like so
1575 - 225x = 0
1575 = 225x
225x = 1575
x = 1575/225
x = 7
-------------------------------------------
So x = 0 is the smallest x can be and x = 7 is the largest x can be. This means the domain is
Answer: Choice D
So lets go step by step, first lets see how much Reagan spent, that is 2 banana splits, $3.25 each, that is:
total spent = 2*3.25 = 6.50
So Reagan spent $6.50 of her weekly allowance, and the problem says that $6.50 represents 26% of her weekly allowance, the question is to find out how much represents the 100% of her weekly allowance.
We can solve this using a rule of three, simple, with direct proportion:
26% -----> $6.50
100% ----> x
x = (100)(6.50)/26 = 650/26
x = 25
therefore Reagan's weekly allowance is $25
Answer:
(2a-5)² is the final solution
Step-by-step explanation:
4a²-20a+25
= (2a)² - 2 × 2a × 5 + 5²
= (2a-5)²
Answer:
AB
Step-by-step explanation:
the hypotenuse is always the longest side in a triangle