Answer:
Simple,the answer would be 93200
Step-by-step explanation:
You move your decimal point backwards by the power e.g 10^6 u move backwards 6 times
The acceleration will be evaluated as follows:
s(t)=(2t+1)^(1/2)
the velocity will v(t) is given by:
v(t)=s'(t)=1/2*2(2t+1)^(-1/2)
v(t)=(2t+1)^(-1/2)
the acceleration will be given by:
a(t)=v'(t)=s"(t)=-1/2*2(2t+1)^(-3/2)
a(t)=-(2t+1)^(-3/2)
thus to evaluate a(t) at t= 4 sec we have:
a(4)=-(2*4+1)^(-3/2)
simplifying this we get:
a(4)=-(9)^(-3/2)
a(4)=-1/27 ft/sec^2
Answer: C]
Answer:
113.33 km/hr
Step-by-step explanation:
Given that :
From Austin
Drive 1 : Speed of 120km/hr for 1.5 hours
Stop time = 0.5 hour
Drive 2 : speed of v2 for 45 minutes to finally reach Houston
Total distance (Austin to Houston) = 265 km
Total distance : (distance on drive + distance on second drive)
Distance = speed * time
(120 * 1.5) + (v2 * 45/60) = 265
180 + 0.75v2 = 265
0.75v2 = 265 - 180
0.75v2 = 85
v2 = 85 / 0.75
v2 = 113.33km/hr
v2 = 85 / 0.75
v2 =
Answer:
B.
Step-by-step explanation:
First equation: the coefficients of x and y are 3 and -2, and the constant is 4.
So the first row should be [3 -2 4].
Second equation: the coefficients of x and y are 6 and -1, and the constant is 10. Hence, the second row should be [6 -1 10].