Answer:
8.33 hours
Step-by-step explanation:
120-45 = 75
75 ÷ 9 = 8.33
Good morning ☕️
______
Answer:
4
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Step-by-step explanation:
Just solve the equation 5-√x = 3
So, let’s solve it:
5-√x = 3 ⇔ 5-3=√x ⇔ √x = 2 ⇔ x=4
Then ?=4
:)
Answer:
x = 5, x = 15; The zeros represent the number of photos printed to produce a maximum profit.
Step-by-step explanation:
F(x) = −x²+ 20x − 75
Let's f(x)= 0
0= -x²+20x-75
0= x²-20x+75
0=x²-5x-15x+75
0= x(x-5)-15(x-5)
0= (x-5)(x-15)
The zeros are
X= 5 or x = 15
And the xeros represent a number of photos printed to produce maximum profit