Answer:
8 pi m
Step-by-step explanation:
area of a circle is 2r pi
2(4) pi = 8 pi
Answer:
B. Anthracite Coal
Step-by-step explanation:
lowest form is peat, then lignite, then bituminous coal, then anthracite
Answer:
the minimum is (1,-9)
Step-by-step explanation:
y = 5x^2 - 10x - 4
since the parabola opens upward 5>0, this will have a minimum
it will occur along the axis of symmetry h=-b/2a
y =ax^2 +bx+c
h = -(-10)/2*5
h = 10/10 =1
the minimum occurs at x =1
the y value for the minimum is calculated by substituting x =1 back into the equation
y = 5 * 1^2 - 10*1 -4
y = 5*1^2 -10 -4
y = 5-10-4
y = -9
the minimum is (1,-9)
Answer:
555 minutes
Step-by-step explanation:
Add all the sides n u will get ur answer
