Answer:
square the number in the middle to solve
it's easier than calculating the roots
1) true
2) true
3) false (obviously)
4) false (3² = 9, not less than 9)
5) true
6) true
Answer:
B
Step-by-step explanation:
Given focus as (h,k) and directrix as y = mx + b, the equation of a parabola is given as:
Hence, from the given focus & directrix, we have:
h = -1
k = -1
m = 0
b = 1
<em>We can plug them into the formula and arrange to get:</em>
<em>
</em>
<em />
<em>B is the correct answer.</em>
Answer:
Face
Step-by-step explanation:
Face is the correct answer.
CUBE is a three dimensional figure, so it's flat surface is called as FACE
Answer:
20
Step-by-step explanation:
the number next to the variable is the coefficient.
20 is the coefficient, while w is the variable
Answer:
x= 60
Step-by-step explanation:
