Can someone answer this question answer it correctly please and show work please

42) 254.47 ft²

43) 56 pendants

Step-by-step explanation:

42)

The radius of a circle is equal to half of its diameter.

Diameter = 18 feet

Radius = Diameter ÷ 2 = 18 ÷ 2 = 9 feet

Area of a circle = π

Substitute in known value of r

Area = π

Substitute in pi

Area = 3.14 *

Solve exponent

Area = 3.14159265359 * 81

Area = 254.4690049408

(Rounds to 254.47)

254.47 ft²

43)

1.5 ounces per pendant

3 pieces of silver:

 pounds

14 ounces

pounds

Convert to improper fractions (1 lb = 16 ounces)

 pounds

 pounds

pounds

Find a common denominator for the fractions

pounds

pounds

pounds

Add

+  +  

 pounds

Find how many pendants can be made out of this amount

 pounds

Convert back to ounces (1 lb = 16 ounces)

84 ounces

Amount to make one pendant:

ounces

Convert to decimal

1.5 ounces

Divide 84 by amount of silver per pendant

84 ÷ 1.5

56

The maximum number the pendants that the manufacturer can make is 56

Hope this helps :)

understand that i don't know the answers

will someone answer his question

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870