Answer:
To convert a quadratic from y = ax2 + bx + c form to vertex form, y = a(x - h)2+ k, you use the process of completing the square.
Step-by-step explanation:
Write the decimal number as a fraction
(over 1)
4.26 = 4.26 / 1
Multiplying by 1 to eliminate 2 decimal places
we multiply top and bottom by 2 10's
Numerator = 4.26 × 10 × 10 = 426
Denominator = 1 × 10 × 10 = 100
Numerator / Denominator = 426 / 100
Simplifying our fraction
= 426/100
= 213/50
= 4 13/50
Answer:
Circumference: 25.12m
Area: 50.24
Step-by-step explanation:
Formula for circumference of a circle: C= or C= since the diameter is double the radius
C=3.14*2*4=3.14*8=25.12
Formula for area of a circle: A=
A=3.14*=3.14*4*4=3.14*16=50.24
Answer:
B
Step-by-step explanation:
Answer:
the first one is 45% I don't no the second one