Danny = 3 Emilly
danny = 3×7
danny = 21 DVD's
Answer:
a. I'm not sure if there's more to the question but I can't answer without knowing how many is the whole class
B. 12 boys
Answer:
0.258819045...
Step-by-step explanation:
just plug it into a calculator
Answer:
10x-20
Step-by-step explanation:
5(2x-4)
5x2=10
5x4=20
Given that the diameter: d= 0.0625 inch.
So, radius of the wire : r =
= 0.03125 inch
Now the formula to find the cross-sectional area of wire ( circle) is:
A = πr²
= 3.14 * (0.03125)² Since, π = 3.14 and r = 0.03125
=3.14 * 0.000976563
= 0.003066406
= 0.00307 (Rounded to 5 decimal places).
Hence, cross-sectional area of a wire is 0.00307 square inches.
Hope this helps you!