Its A
When you multiply a constant k to a matrix, you multiply all the corresponding numbers in the matrix by k.
So 3A would be = 3 9
15 6
and 2b would be = 8 18
0 6
Now subtract it. to get your answer
Answer:
742
Step-by-step explanation:
27 + 31 + 35 + ...
a = 27
d = 31 - 27 = 4
S14 = (14/2)[2(27) + (14-1)(4)]
= 7(54 + 52)
= 7(106)
= 742
Use the quadratic formula with a = 2, b = -5, and c = 1
x = -b ± sq rt b2 - 4ac
-------------------- <---------- Please note: sq rt is over entire expression of b^2 - 4ac
2a
x = - (-5) ± sq rt (-5)2 + 4(2)(1)
-------------------------------- <---------Please note: sq rt is over entire expression (-5)2 + 4(2)(1)
2(2)
x = 5 ± √17
---------
4
x = 5 + 1√17 OR x = 5 + -1√17
--- --- --- ----
4 4 4 4
Answer: x = 5 + 1√17 OR x = 5 + -1√17
--- -- -- --
4 4 4 4
Answer:
see below
Step-by-step explanation:
for 7, about 520/20 = 26
for 8, around 2,000/100= 20
You need to provide a picture or something
