9514 1404 393
Answer:
487.2 in²
Step-by-step explanation:
The area of the semicircle is ...
A = (1/2)πr² . . . . . where r is half the diameter
A = (1/2)π(9 in)² = 40.5π in² ≈ 127.2 in²
The area of the rectangle is ...
A = bh
A = (18 in)(20 in) = 360 in²
Then the total area is ...
total area = semicircle area + rectangle area
= 127.2 in² +360 in² = 487.2 in² . . . . . area of the wood base
A = - 7
the equation is basically a - 5 = - 12 so u need to bring the five to the other side making it positive and add it to - 12
Answer:
Step-by-step explanation:
1. Height of the equilateral triangle = a√3/2
8√3/2=4√3=6.9
2. 60 (equilateral triangle means all three sides and angles are equal)
The constant of proportionality will be same as the slope of the line. Let's take two points from the line: (0,0) and (1,2)
The slope for a line that passes through two points and is:
Substitute the two points into this formula for slope and we have:
After solving and simplifying, we get
Thus, the slope of the line is 2. This means that the constant of proportionality is 2. Let me know if you need any clarifications, thanks!
~ Padoru