Answer: − x 2 + 5 x + 12 = 0 - x 2 + 5 x + 12 = 0
Step-by-step explanation:
Given:
t A = 2.4 h
t B = 4 h
v A = 22 + v B
Solution:
Distance A and distance B is the same, distance could be defined using formula d = v × t
d A = d B
(v A × t A) = (v B × t B)
plug in the numbers
v A × 2.4 = v B × 4
(22 + vB) × 2.4 = 4 vB
remove the parenthesis using distributive property
(22 × 2.4) + (2.4 × vB) = 4vB
52.8 + 2.4vB = 4vB
add like terms
52.8 = 4vB - 2.4vB
52.8 = 1.6vB
52.8/1.6 = vB
vB = 33
the speed of car B is 33 mph
vA = 22 + vB
vA = 22 + 33
vA = 55
the speed of car A is 55 mph
Answer:
Hmmm... There's no question which leads to the reasoning that there is no answer.
Step-by-step explanation:
Answer:
A = 1/24
Step-by-step explanation:
Area is the length times the width
A = l*w
The length is 1/6 and width is 1/4
A = 1/6*1/4
A = 1/24
