Answer:
Melba works more
Step-by-step explanation:
We need to compare with the same units
Lets convert hours to minutes
1 hour = 60 minutes
8 hours* 60 minutes/1hour = 480 minutes
Keith works 480 minutes
Melba works 2250 minutes
Melba works more
Answer:
see step by step explanation
Step-by-step explanaion:
s would be 95, t would be 15, r would be 70
Answer:
The lcm (least common multiple) of 4 and 12 is 12.
Step-by-step explanation:
Find the prime factorization of 4
4 = 2 × 2
Find the prime factorization of 12
12 = 2 × 2 × 3
Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:
LCM = 2 × 2 × 3
LCM = 12
Answer:
Speed = 13.0m/s
Step-by-step explanation:
Given that velocity, v = (ai ± bj)m/s.
Because speed is scalar and has only magnitude, we can obtain it from the velocity by calculating only the magnitude given as:
...Equation 1
From the question, we were given the position vector, r
The velocity can be obtained by differentiating r with respect to time, t
We have that differentiation of a constant is 0.
At time t = 2.00s,
To obtain the speed, we use equation 1
<em>Therefore, the speed of the object at time t = 2.00s is 13.00m/s</em>
Answer:
8
Step-by-step explanation:
Measure of one interior angle of a regular polygon of n sides:
(n - 2)180/n
Measure of one exterior angle of a regular polygon if n sides:
360/n
"the interior angle is thrice the exterior angle"
(n - 2)180/n = 3 * 360/n
(n - 2)180 = 3 * 360
n - 2 = 3 * 2
n = 8
The number of sides is 8.