Answer:
Step-by-step explanation:
<u>Given </u>
<u>Simply</u>
<u>Solution</u>
- f(x + h) - f(x - h) =
- (x + h)^2 - 3(x + h) - (x - h)^2 + 3(x - h) =
- x^2 + 2hx + h^2 - 3x - 3h - x^2 + 2hx - h^2 + 3x - 3h =
- (x^2 - x^2) + (2hx + 2hx) - (3x - 3x) + (h^2 - h^2) - (3h + 3h) =
- 4hx - 6h
Answer:
8.8 breaths
Step-by-step explanation:
Answer:
The measure of the angles are 55° and 35°
Step-by-step explanation:
Sum of two angles that are complement of each other are 90.
The angles are A and B, so we can write:
A + B = 90
Also,
The difference is 20. Let A be the greater of them, so we can write equation 2 as:
A - B = 20
Now, we add up both equations, eliminate B and solve for A first:
A + B = 90
A - B = 20
---------------
2A = 90 + 20
2A = 110
A = 110/2
A = 55
And now the measure of B:
A + B = 90
55 + B = 90
B = 90 - 55
B = 35
He was billed for 191 minutes. $19.46-$8 fee=$11.46/6=191
