By segment addition rule AB + BC = AC
3x + 2x - 7 = 2x + 35
3x = 42
x = 1 4
CHECK
3(14) = 42
2(14)-7= 21
-------------------
2(14)+ 35= 63
Hey there!!
How do we find the determinant ?
Ans = ad - bc : determinant
In the given matrix ,
a = -5
b = 1
c = 1
d = 4
Determinant = ( -5 ) ( 4 ) - ( 1 ) ( 1 )
... - 20 - 1
... -21
Option ( c )
Hope it helps!
The answer is B.27. Hope this helps!
Answer:
k = 15
Step-by-step explanation:
12/4/5 = 4/5/4/5 k
15 = k
OR
5/4 (12) = 4/5 (5/4) k (multiply by the reciprocal)
15 = k