Answer:
Step-by-step explanation:
Solved using excel
If you were supposed to use a normal table to solve leave a comment
0.0520812794152196
Answer:12
Step-by-step explanation:
Let the numbers be a and b
a-3b=5 ........equation (1)
There product is :
ab=68 ..........equation (2)
From equation (1)
a-3b=5
Make a the subject of the formula
a=5+3b. ........equation (3)
Substitute equation (3) into equation (2)
(5+3b)b=68
3(b^2)+3b-68=0
The product is -204b^2(17 and -12)
(b+17)(b-12)=0
b=-17 or b=12
So the number is 12
Move 4x to the other side
2y=10+4x
Divide both sides by 2y
Y=5+4x
2. X-y=13
Move the first variable to the other side
-y=13+x
Well there is a lot of trigonometry in this. I will try my best.
Finding: Distance between Wall A and Wall B.
1. Trig and phythagorean properties for left triangle.
30m
2. Trig and Pythagorean properties for right triangle.
40m (approx)
30 + 40 = 70.
Therefore the distance is APPROXIMATELY 70 meters. I haven't learned trig yet so sorry if I am wrong.
