Answer:
314 cm²
Step-by-step explanation:
Area of a circle is A= πr²
pi is 3.14 and radius is 10:
A= 3.14(10)²
A= 314
Step-by-step explanation:
Just make a new account
1/8=3/24
9/12=18/24
3*6=18
Filling the 1/8th measure 6 times will equal 9/12
Answer:
Yes by SAS
Step-by-step explanation:
if you do 42 / 18 you see that the relationship between the sides is 2.3333... so that is one proportional side
Then, you see that there is one angle in both triangles that is 76 degrees, so that is one equal angle
then, you can do 21 / 9 = 2.33333... which is the same as the first proportion which means that is another proportional side.
then you have a side, angle, and a side, so it's SAS
There are 13 heart cards
Now 1 heart card can be drawn from a pack of 13 heart cards in 13C1 ways
13C1=13
Also,1 card can be drawn from a pack of 52 cards in 52C1 ways
52C1=52
The probability of drawing a heart card from a pack of 52 cards is
13/52=1/4
there are 26 black cards in total
(13 spades +13 clubs)
Now 1 black card can be drawn from a pack of 26 black cards in 26C1 ways
26C1=26
Also,1 card can be drawn from a pack of 52 cards in 52C1 ways
52C1=52
The probability of drawing a black card from a pack of 52 cards is
26/52=1/2
Now as both the task are performed one after the other and after replacement so the probability of drawing a heart after a black card is
=1/2 * 1/4
=1/8