We have that v*v=
. Hence, v*v= (2,7)*(2,7)=2*2+7*7=53. Thus,
. The correct choice is d.
Answer:
9)x=135º
10)x=2 23º
11)x=2 122º
Step-by-step explanation:
15x-7=19x-15
-4x=-8
4x=8
x=2
54x+14=43x+36
11x=22
x=2
Assuming the equations are:
<span>−4x+y=−6
8x−2y=14
The second equation can be rewritten (divide by -2) to
-4x+y=-7
This system has no solutions. If you would draw them as lines, they are two parallel lines that never intersect.</span>
Answer:
4.5
Step-by-step explanation:
The median we know is the middle number of a set of numbers. Putting the set in least to great order, we have (1, 3, 3, 6, 8, 9). The middle number here is 3 and 6. We take the mean of 3 and 6, (3+6)/2 which gives us 4.5 and that is our answer.