Step-by-step explanation:
Given expression is x⁴-kx²+4 =0
x−2 is a factor of the given expression.
So, x=2
Substitute in the equation, we get
2⁴-k(2)²+4
⇒16+4k+4=0
⇒4k=−20
⇒k=−5
Answer:
38.88
Step-by-step explanation:
72% of 54
=
× 54
= 0.72 × 54
= 38.88
Answer:
2
Step-by-step explanation:7+2 is 9 and 9x3 is 27
The minimum amount of sheets she can use are 4 sheets. 3 sheets contain 10 cookies, and 1 sheet has 6 cookies.