Step-by-step explanation:
hence the value of y=-9/4and k=-16.
Answer:
x = 21
Step-by-step explanation:
the equation is 2x + 10 = 52
2x = 42
x = 21
Answer:
d in (-oo:+oo)
(5/9)*d = 9/10 // - 9/10
(5/9)*d-(9/10) = 0
(5/9)*d-9/10 = 0
5/9*d-9/10 = 0 // + 9/10
5/9*d = 9/10 // : 5/9
d = 9/10/5/9
d = 81/50
d = 81/50
Step-by-step explanation:
Answer:
c=7.07
Step-by-step explanation:
c²=a²+b²
c²=5²+5²
c²=25+25
c²=50
c=√50
c=7.07
B. c=7.07 (to nearest hundredth)
C. c=√50= 5√2 in radical form
Answer:
E is not a subspace of 
Step-by-step explanation:
E is not a subspace of
In order to see this, we must find two points (a,b), (c,d) in E such that (a,b) + (c,d) is not in E.
Consider
(a,b) = (1,1)
(c,d) = (-1,-1)
It is easy to see that both (a,b) and (c,d) are in E since 1*1>0 and (1-)*(-1)>0.
But (a,b) + (c,d) = (1-1, 1-1) = (0,0)
and (0,0) is not in E.
By the way, it can be proved that in any vector space all sub spaces must have the vector zero.