Estimate :
19 4/5 rounds to 20
4 5/8 rounds to 5
20/5 = 4 <== about 4
Answer:
5).
According to the question,
CD+DE=CE
2+13=2x-3
15=2x-3
15+3=2x
18=2x
18/2=x
8=x
6).
According to the question,
AB+BC=AC
5x-16+3x-6=2x+20
8x-22=2x+20
8x-2x=20+22
6x=44
x=44/6
x=7.33
Step-by-step explanation:
......
A, B, and C all make straight-line graphs.
D is a parabola.
Y= mx+b (slope intercept form)
m= the slope (in this case 8)
b= the y-intercept (-3)
the answer: y=8x-3