Answer:
Step-by-step explanation:
You should croos multiply to get 10x = 50 (20) which is 10x = 1000 then divide each side by 10. What do you get for x?
(4x+3) (2x-5)
8x^2-20x+6x-15
8x^2-14x-15
Answer: 8π mm (in terms of π)
Step-by-step explanation:
1) The formulas for solving the circumference of a circle is πd (π times diameter).
2) 8 times π equals 8π mm.
Hopes this helps!
10. Determine whether or not, vectors ui(1,-2, 0, 3), u2 = (2, 3,0,-1), u3 = (3,9,-4,-2) e R is a linear combination of the (2,-
vodka [1.7K]
If (2, -1, 2, 1) is a linear combination of the three given vectors, then there should exist 
such that
or equivalently, there should exist a solution to the system
Right away we get 
, so the system reduces to
Notice that the first equation is the sum of the latter two. The third equation gives us
so that in the second equation,
which in turn gives
and hence the (2, -1, 2, 1) is a linear combination of the given vectors, with
Step-by-step explanation:
J(-3,9)
k(-10,9)
L(-10,4)
M(-3,4)
