Answer: f(3)=-20
Step-by-step explanation:
If you look at f(x) and f(3), you can see that 3 is in place of x. That means when x=3, what is f(x). You plug in x=3 into f(x) and solve.
f(3)=-2(3)²-2
f(3)=-2(9)-2
f(3)=-18-2
f(3)=-20
First you have to find the area of the rectangle which is 14 cm by 4 cm = 56 cm and then find the area of the semicircle which is 1/2(radius by pi): 0.5(4 by 3.14)= 12.56cm
56 cm+ 12.56 cm =68.560 cm to the nearest hundredth is 68.56 cm
Hope it helps☺️
For this case we can model the problem as a rectangle triangle.
We know:
Angle between the base of the triangle and the hypotenuse
Length of the base of the triangle
We want to know:
Length of the hypotenuse.
For this we use the following trigonometric relationship:
Clearing h we have:
Answer:
the ladder is 30.9 feet long:
d) 30.9 ft
Answer:
42
Step-by-step explanation:
6÷(1/7) equals forty two.