Answer:
Step-by-step explanation:
By geometric mean property:
Answer:
Diameter of the smaller coin = 2.46 cm
Step-by-step explanation:
Circumference of a coin = 2πr
Circumference of coin A = 8.03 cm
Circumference of coin B = 8.03 cm - 0.33 cm
A.) what is the first step to find the diameter of the smaller coin?
Find the circumference of coin B
Circumference of coin B = 8.03 cm - 0.33 cm
= 7.7 cm
B.) Find the diameter of the smaller coin.
Circumference of a coin = 2πr
7.7 = 2 × 3.14 * r
7.7 = 6.28r
r = 7.7 / 6.28
r = 1.23 cm
Diameter = 2r
= 2 * 1.23 cm
= 2.46 cm
Diameter of the smaller coin = 2.46 cm
x = -3 or x = -2
Step-by-step explanation:
x² + 5x + 6 = 0
(x + 3)(x + 2)
x = -3 \/ x = -2
Answer:
A= 115 degrees
C= 50 degrees
Step-by-step explanation:
All angles are equal to 180 so the equation is:
180=4x-13+x+18+15
180=5x+20
160=5x
x=32
Answer:
16 cm^2
Step-by-step explanation:
Formula = 1/2 * base * height
1/2 * 8 * 4 = 16
16 cm^2
