A rhombus has all sides of equal length, while a parallelogram not necessarily.
Answer:
30
120
706.5
Step-by-step explanation:
circumference= 94.2 inches, circumference is pi x diameter so-
diameter = 94.2/pi inches.
Using 3.14 as an approximation for pi we get:
Diameter=30 inches.
So would need a length of at least
4x30 = 120 inches of felt for four wheels.
The area of the circular wheel is pi x diameter 2/4 square inches.
Area is 706.5 square inches which is how much felt is needed to cover one wheel.
Answer:
36, 6, 49, 7, 6, 7
Step-by-step explanation:
Just like the last one! The key is to think about the perfect squares closest to the number being asked about. For 47, these are 36 and 49, which have square roots of 6 and 7 respectively, so you know it must be between 6 and 7.
Answer:
Standard Error of the difference = 0.0695
Step-by-step explanation:
Its given that : In a large school district, 16 of 85 randomly selected high school seniors play a varsity sport
Also, in the same district, 19 of 67 randomly selected high school juniors play a varsity sport
Now, finding the standard error of the difference :
Hence, Standard Error of the difference = 0.0695
