Answer:
f(-2)=4+6+2
f(-2)=12
Step-by-step explanation:
Add -2 where all the x values are then solve
So normally it is
if 8x is to 6y, then how many x is to 42y?
it could be
if 8x:6y then how many x:42y or
if 8x:6y then how many y:42 x
I will solve for both
if it is
x:42y go to AAAAAAAA
if it is
y:42x then go to BBBBBBBBBB
AAAAAAAA
how many concerts are equal to 42 symponies
arrange in concerts to symponies format
8:6=x:42
fractionify
8/6=x/42
multiply boht sides by 42
336/6=x
56=x
56 concerts equals 42 symponies
BBBBBBBBBB
how many symponies are equal to 42 concerts
areange in symponies:concerts
6:8=x/42
fractionify
6/8=x/42
multiply boht sides by 42
252/8=x
31.5=x
31.5 symponies to 42 concerts
so it could be
56 concerts to 42 symponies
or
31.5 symonies to 42 concerts
Answer:
a. 0.24094
b. 0.2494
c. 0.1473
Step-by-step explanation:
The total probability of choosing any 20 random balls out of 80 is 
. We use combination since the order of selection does not matter
a. P(all numbers are selected)
are our numbers, 
is the selection of other ten numbers apart from our numbers.
b. P(none of them are selected)
Since none of our numbers are selected, we assume that all the numbers selected are from the other 70.
c. P (exactly four are selected)
Only four from our numbers are selected and the rest 16 from the other 70 numbers.
B. I hope this help please let me know if it's correct.
You have to use Pythagorean's theorem to find the missing side measure. 41^2=40^2 + w^2. 1681 = 1600 + w^2. 1681-1600=w^2. 81=w^2 and w = 9. That's an odd triangle, but accurate! Now use the cos definition of cos x = 9/41, and cos x = .2195. Now use the inverse function on your calculator in degree mode to see that the angle x is 77.3 degrees.
