Seriously, I suggest you ask your teacher for a sit-down together, to review
some of the previous work. Math builds like brick wall. When there's a level
that you don't understand, then you can't build more levels on top of it.
You can't keep going through math getting answers from other people.
Sooner or later, you need to understand how to solve the questions on
your own, and the longer you put it off, the tougher it could get.
In these questions, "+" is always 3 more than 'a' is.
20). "+" is 3. That's 3 more than 'a'. So 'a' is zero.
21). 'a' is 1. "+" is 3 more than 'a'. So "+" is 4.
22). "+" is 5. That's 3 more than 'a'. So 'a' is 2.
23). 'a' is 3. "+" is 3 more than 'a', so "+" is 6.
D
Use the midpoint theorem of the triangle
Line x bisects the 2z and is parallel to line y (corresponding angles
Therefore x = half y
(-3, 2)
Step-by-step explanation:
when the point is rotated through 90∘ about the origin in the counterclockwise direction then the point M(h,k) takes the image M′(−k,h)
so the point (2,3) will be (-3 ,2 )
Answer:
l = 2, m = - 1, n = - 6
Step-by-step explanation:
A scalar matrix has its diagonal elements equal and all other elements zero, so
2l - 4 = 0 ( add 4 to both sides )
2l = 4 ( divide both sides by 2 )
l = 2
---------------------------------------
3l + n = 0
3(2) + n = 0
6 + n = 0 ( subtract 6 from both sides )
n = - 6
--------------------------------------
3m - n = 3
3m - (- 6) = 3
3m + 6 = 3 ( subtract 6 from both sides )
3m = - 3 ( divide both sides by m )
m = - 1