Whatever is inside of the ( ), simply plug that digit into the x-values for f(x)
So: f(x) = 7x - x^2, and f(7+h) - f(7)
= [7(7+h) - (7+h)^2] - [7(7) - (7)^2]
= [49+7h - 49+14h+h^2] - [49-49]
= 49-49 + 7h+14h + h^2 = h^2 + 21h =
h (h+21), h (h+21) = 0
h=0... But it stated h cannot = 0
So h+21 = 0, h = -21
Answer:
x = 24
Step-by-step explanation:
look.
3 + x = ------------27
x = ---------------?
22 + 3 = 25
23 + 3 = 26
24 + 3 = 27
The number of degrees does it move in 2 1/5 hours is -66°.
<h3>How to calculate the number of degrees?</h3>
From the information given, it was illustrated that the hour hand of a clock moves −30° every hour.
Therefore, to calculate the degree for a number of hours, we simply have to multiply.
In this case, to get the degree for 2 1/5 hours will be:
= Degree every hour × Number of hours
= -30° × 2 1/5
= -30° × 2.2
= -66°
Learn more about time on:
brainly.com/question/26046491
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X= 10 y= 9 the difference between the two numbers is one and they equal 19
