No, you only reverse the symbol when the divisor is negative
Answer:
Option b. 12
Step-by-step explanation:
This exercise asks us to find the derivative of a function using the definition of a derivative.
Our function is . Therefore:
Then:
Expanding:
Now, if x=0:
Answer:
30%
Step-by-step explanation:
Initial area is 40 square feet
Final area is 28 square feet
Difference between the initial and final areas will be 40-28=12 square feet
Taking the initial area as the base area and expressing the area change in percentage then the percentage decrease will be equivalent to
Therefore, the decrease in area expressed as a percentage is equal to 30%
Answer:
0.9412
Step-by-step explanation:
Ultimately, if you know the length of the arc, and you know the length of the radius, the central angle (in radians) is just how many radii long the arc is. angle=arc lengthradius length=16 feet17 feet≈0.9412.
Answer: the horizontal distance travelled is 2352 feet
Step-by-step explanation:
The altitude of the airplane, the horizontal distance that it travelled and the angle, θ formed with the ground combine to form a right angle triangle.
The horizontal distance that it travelled represents the adjacent side of the right angle triangle.
The altitude that it reached represents the opposite side of the right angle triangle. To determine the horizontal distance that it has travelled, h, we would apply the tangent trigonometric ratio which is expressed
Tan θ = opposite side/adjacent side
Therefore,
Tan 12 = 500/h
h = 500/Tan 12 = 500/0.2126
h = 2352 feet