Answer:
R = 14 cm
A = pi R^2 = 3.14 " 196 = 616 cm^2
Answer:
100% increase
Step-by-step explanation:
Calculate percentage change
from V1 = 20 to V2 = 40
(V2−V1)|V1|×100
=(40−20)|20|×100
=2020×100
=1×100
=100%change
=100%increase
Answer:
Step-by-step explanation:
8,1 8,2
8,3 8,4
8,5 8,6
in 1st figure
2:1=(x+2):2
2/1=(x+2)/2
4=x+2
x=2.
Similarly in the 2nd figure
8:5=(8+3):(5+x)
8/5 = 11/ (5+x)
8(5+x) =55
40+8x=55
8x=15
x=15/8
x=1.875
First, we need the probability of picking an odd number.
There are 5 cards in total, and 3 odd cards (3, 5, and 7).
That means that the probability that we'll draw an odd card would be
.
Then, we have 4 cards left, and 2 even cards (4 and 6), meaning that the probability that we draw an even card will be
or
.
To find the probability that these would happen in consecutive draws, we just multiply the probabilities together.
or 0.3.
To convert this into a percentage, we multiply the decimal by 100.
.
So the probability of picking an odd number and then picking an even number is 30%.
Hope this helps!