Answer:
B for both
Step-by-step explanation:
If you rotated the box 90º, the orrientation would not be the same, so it is not D or B.
After rotating 180º, the box will be in the 1st quadrant. If it moved along the x-axis, it wouldnt be there anymore, and the after-picture shows it in the first quadrant still, so the only answer it can be is C.
Answer:
40
Step-by-step explanation:
n/10+5=9
n/10=9-5
n/10=4
n=4*10
n=40
Answer:
D
Step-by-step explanation:
<u>The question is about multiplication of matrices</u>
Given matrix A as [6 -12]
[4 8]
if 1/2x= A
then x=2A
A={6 -12}
{4 8}
x=twice A or A +A
<u>solving for 2A</u>
2A=(2×6 2×-12)
(2×4 2×8)
2A= (12 -24)
(8 16)
Using algebra...
n and n+2 are the integers
n*(n+2)=288
n^2+2n=288
n^2+2n-288=0
288=2*2*2*2*2*3*3=(2*2*2*2)*(2*3*3)=16*18 and 18-16=2
factor
(n+18)(n-16)=0
n+18=0
n=-18
n+2=-16
this is one solution
n-16=0
n=16
n+2=18
this is another solution
as you can see, it's just a matter of factoring
288
using arithmetic...
√288=16.97≈17
16 and 18 are the integers (as well as -16 and -18)
