Answer:
amanda: 18
Hong: 36
Bill: 26
Step-by-step explanation:
a+b+h=80
b=8+a
H=2A
a+8+a+2a=80
4a+8=80
a=18
DE=21 That’s the right answer
Answer:
y = 2 for x < 0
x for 0 ≤ x < 3
3 for x ≥ 3
Step-by-step explanation:
From the graph attached,
Equation of line (1),
y = 2
Where x < 0
Let the equation of line (2) is,
y = mx + b
y-intercept 'b' = 0 [line (2) passes through origin]
Slope of the line 'm' =
= ![\frac{3}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B3%7D)
= 1
Therefore, equation of line (2) will be,
y = x
where 0 ≤ x < 3
Equation of line (3) will be,
y = 3
Where x ≥ 3
Therefore, piecewise linear function will be,
y = 2 for x < 0
x for 0 ≤ x < 3
3 for x ≥ 3
I think the top one is -cos(a)4/sin(a)2 and the bottom -sin(a)4/cos(a)2. The / means fraction