Answer:
r = 8
Step-by-step explanation:
Solve for r:
r + 4 = 12
Subtract 4 from both sides:
r + (4 - 4) = 12 - 4
4 - 4 = 0:
r = 12 - 4
12 - 4 = 8:
Answer: r = 8
The 4 treads require 4*10.25 = 41 inches, but you also require landings at each level, adding perhaps 72 inches. (Building codes vary.)
Somewhere between 41 and 113 inches of horizontal space will be required, perhaps more.
Y=mx+b
m=slope
so it is y=-4/3x+b
d is answer
Answer:
7+√5/4
Step-by-step explanation:
if that is = a, find the value of a + 1 over a
Given that a = 3 - √5
a+1/1 = (3-√5)+1/3 - √5
4-√5/3 - √5
Rationalize
4-√5/3 - √5 * 3+√5/3 + √5
= 12 +4√5-3√5-√25/9-5
= 12+√5-5/4
= 7+√5/4
Hence the requred answer is 7+√5/4
Answer:
it should be 2462 feet³
Step-by-step explanation: