4)
a) you got it correct
b) y = 70x
c) Yes
d) f(6) = 70(6) = 420
e) f(x) = 210
70x = 210
x = 210/70
x = 3
f) continuous
g)
Domain: <span>The set of </span>all possible input values<span> (commonly the "x" variable), which produce a valid output from a particular function.
</span> (-∞ , ∞)
Range: <span>The range is the set of </span>all possible output values<span> (commonly the variable y, or sometimes expressed as </span><span><span>f(x)</span><span>f(x)</span></span><span>), which result from using a particular function.
</span>(-∞ , ∞)
5)
a) y = -5x
b) Yes, go thru (0,0)
and Yes, constant rate is -5
c) Yes
d)
f(11) = -5(11) = -55
e)f(x) = -45
-5x = -45
x = 9
Answer:
($20/gal)r + ($30/gal)b ≤ $250
r + b ≤ 10 (gallons)
Step-by-step explanation:
Represent the amount of red paint by r and that of blue point by b.
Olivia must cover 5000 ft^2 with paint, which comes out to 5000/500, or 10, gallons total of red and blue paint. The corresponding inequality is
r + b ≤ 10 (gallons)
She has onlyl $250 to spend. Therefore, the following must hold true:
($20/gal)r + ($30/gal)b ≤ $250
The required sysstem of inequalities is thus
($20/gal)r + ($30/gal)b ≤ $250
r + b ≤ 10 (gallons)
Answer:
3 x 3 x 3 x 3 x 3 x 3 x 3 x 3
Step-by-step explanation:
Answer:
D - (-2)^2 does not equal to -4
Step-by-step explanation:
√-4 does not equal -2 because if you try squaring -2 you will get 4 not -4, because 2 negative number makes it a positive.
For example
-2 x -2 - There are two negative numbers, so it should equal...
4
X=162, if you multiply 18*9 which is the way to get the answer you get 162
