18. part 1) x equals 4d square root 5 over 5 . it's a fraction
part 2) x equals 4 square root 5 over d. it's a fraction
part 3) x equals d square root 5 over 4. it's a fraction
part 4) x equals 4d square root 5 over 5 (same as part 1)
Answer:
About 5.73 cm
Step-by-step explanation:
C=2πr so
36=2πr (divide by 2)
18=πr (using 3.14 as π)
18=(3.14)r (divide by 3.14)
r=5.732484076 so
R≈5.73 cm
If it's 5cm x 5 cm x 5cm
Volume is a3
so 125cm
They show the decomposition of a multiplication expression into smaller parts