Answer:
30.807
Step-by-step explanation:
Hope this helps
B) If A x B = {(-1, 1), (-1, 2), (2, 1), (2, 2), (3, 1), (3, 2)}. Find A x A and B x B.
Oduvanchick [21]
hope this helps!
Step-by-step explanation:
A = {-1, 2, 3}
B = {1,2}
AxA = {(-1,-1) (-1,2) (-1,3) (2,-1) (2,2) (2,3) (3,-1) (3,2) (3,3)}
BxB = {(1,1) (1,2) (2,1) (2,2)}
Answer:
on the second day it took them 6 hours to get to their grandparents' house
Step-by-step explanation:
First we have to calculate how many miles they had to drive the second day
For this we have to subtract from the total miles the number of miles they drove the first day
843 mi - 483 mi = 360 mi
To calculate the time it takes we have to divide the distance it has to travel by the average velocity at which they travel
v = 60 mi/h
d = 360 mi
t = d/v
t = 360(mi) / 60(mi/h)
t = 6 h
on the second day it took them 6 hours to get to their grandparents' house
Because the highest power is 2 the degree of the problem is 2
For clearly look we can seperate the number parts and the letter parts because they are all “*” and “/“ caculation
Initial fraction: (20 * a^2 * b) / ( 5 * a * b^2) = (20 / 5) * (a^2 / a) * (b / b^2)
Result: (4*a) / (b) = (4*a) / (1*b) = (4/1) * (a/b)
As you can see the result is a fully simplifying form so just simplify any thing you can from initial fraction
20/5 = 4/1 (both nume and deno are divided by 5)
a^2 / a = a/1 (divided by a)
b / b^2 = 1/b (divided by b)
Multiply all above we get the result 4a/b (just for checking whether we did right or not)
Next, multiply all that we have divided in previous step: 5*a*b = 5ab
=> problem solved
