Answer:
Distributive property of multiplication
Step-by-step explanation:
7(9+4) =63 +28
7 x4=63 7x4=28
Answer:
let ratio 6:4:2 be 6x,4x and 2x
we have
6x+4x+2x=180 sum of interior angle of the triangle is 180
12x=180
x=180/12=15
Step-by-step explanation:
missing Angle are
6x=6×15=<em><u>9</u></em><em><u>0</u></em><em><u>°</u></em>
4x=4×15=<em><u>6</u></em><em><u>0</u></em><em><u>°</u></em>
2x=2×15=<em><u>3</u></em><em><u>9</u></em><em><u>°</u></em>
The expression for the kinetic energy is mass times velocity squared over two
For the first question that gives us 2,25 joules
If the ball is at the given height then it has a further 60 Joules in potential energy.
Answer is D
Answer:
18 minutes
Step-by-step explanation:
Given that the time (T) varies directly as the number of spectators (S) and varies inversely as number of open exits (E).
Hence:
T ∝ S; T ∝ 1 / E
Let k be the constant of proportionality. This gives:
T = kS / E
when T = 12 minutes, S = 20000, E = 20. Hence:
12 = k(20000) / 20
20000k = 240
k = 12 / 1000
This gives:
T = 
When S = 36000, E = 24, we are to calculate the time (T):

T = 18 minutes
Answer:
This problem has been solved: ... a department store polled 700 shoppers regarding whether or not they made a purchase and whether or not they were pleased ... Of those who made no purchase, 201 were happy with the service and 215 were not. ... We know that number of event of a purchase and a happy with service is.
Step-by-step explanation: