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: (y - 3) = 7/6 (x - 4)
Step-by-step explanation:
The formula for point slope form is (y-y₁) = m(x-x₁)
Parallel lines will always have the same slope, so the slope of the new line is still 7/6.
The line goes through point (4, 3),
so x₁ = 4, and y₁ = 3 as points are written as (x, y).
Answer:
17x+4
Step-by-step explanation:
4(5x+1)-3x
20x+4-3x
17x+4
Answer:
x = 5
Step-by-step explanation:
Step 1: Distributive property
Using this property means when you have something like the equation on the right side ( 4 ( x + 3 ) ) you multiply both the values in the parentheses by the number outside:
4 ( x + 3 )
( 4 x X ) + ( 4 x 3 )
4x + 12
8x + 2 = 2x + 4x + 12
Step 2: combine like terms
Combining like terms is when you find like terms with the same variables and such and add them together:
8x + 2 = 12 + ( 2x + 4x )
8x + 2 = 12 + 6x
Step 3:Using inverse operations
This means that you need to get a variable one one side and a constant on the other:
8x + 2 ( -2 ) = 12 ( -2 ) + 6x
8x = 10 + 6x
8x ( -6x ) = 10 + 6x ( -6x )
2x = 10
Step 4: solve for the variable
The last thing you need to do is divide both sides by the constant with the variable ( 2x ) to get x by itself:
2x ( /2 ) = 10 ( /2 )
x = 5
Answer:
C= 7.6761229314
Step-by-step explanation:
the formula is c=d/p
d= 324.7
p= 42.3
so ... this is how to calculate...
C = 324.7 km/ 42.3 litres
I hope it can help. thanks
