Find the polynomial. {5} is the solution set of A) x^2-5x+25=0 B)x^2+10x+25=0 C)x^2-10x+25=0 D)x^2+5x+25=0
2 answers:
Answer:
option:C
Step-by-step explanation:
A) on putting x=5 in equation we have that the equation is not equal to 0 it gives the value 25. so {5} is not a solution set of A.
B) on putting x=5 in the equation we have the equation is not equal to 0 it gives the value 100. so {5} is not a solution set of B.
C)on putting x=5 in the equation , the equation gives the value 0. so {5} is a solution set of C.
D)on putting x=5 in the equation equation does not give the value zero it gives 75. so {5} is not a solution set for D.
You might be interested in
Answer:
3 metres
Step-by-step explanation:
If we draw this out, we'll see that there are actually two similar right triangles (see attachment), which means that we can set up a proportion.
The height of the lookout tower corresponds to the height of the wooden column, while the shadow of the lookout tower corresponds to the shadow of the wooden column. We can then write:
(height of lookout tower) / (shadow of tower) = (height of column) / (shadow of column)
16 / 12 = 4 / x , where x is the shadow / unknown we want to find
Cross-multiply:
16x = 48
x = 3
The answer is thus 3 metres.
