Answer:
A
Step-by-step explanation:
I got it right in Edginuity.
Answer:
x² -25
Step-by-step explanation:
(x +5)(x -5) = x(x -5) +5(x -5) = x² -5x +5x -25 . . . . . 5x terms cancel
= x² -25
_____
This is an example of the factoring of the difference of squares:
(a+b)(a-b) = a²-b²
Answer:
0.027 to the nearest thousandth.
Step-by-step explanation:
There are 14 marbles in the bag, so:
Prob( a blue on the first draw) = 5/14.
Prob( a blue on the 2nd draw) = 4/13.
Prob( a blue on the 3rd draw) = 3/12 = 1/4.
So the required probability is 5/14 * 4/13 * 1/4
= 20/ 728
= 0.02747.
Answer:
Tn=T1+(n-1)*d
Step-by-step explanation:
Tn is the nth term
T1 is the first term of the sequence
n is the nth term as well
d is the common difference
If dividing fractions
Don't be shy...
Just flip the second
And MULTIPLY!!!
They taught us this at school so it should be easier if you do this.
