5h-6h=20
-h=20
h=-20
5(-20)-6(-20)=20
-100+120=20
20=20
The answer to solve h would be -20! :)
Question 1)
I assume it asks about the circumference (of only the circle arc)
C=r*2*pi
r=2
-> C=4pi
1 Quarter only of the circle: C/4=pi=3.1
if it's the perimeter of the shape then you need to add the two 2in sides
C=3.1+2*2=7.1
2)
C=r*2*pi, but not a full circle, only semi-> divide by 2-> C=r*pi
r=30
C=30pi=94.2
3)
the radius of the semicircle is 6/2=3mm
semicircle C=r*pi=3pi
add the rectangle perimeter
3pi+2*3+6=12+3pi=21.4
4)
C=2r*pi
insert 2r=d=12
C=12pi=37.7
5)
C=2r*pi
r=10
C=20*pi~62.8
3 rotations of the wheel->
distance=C*3=188.4
Answer:
C. 25
Step-by-step explanation:
When the numbers with same base are multiplied, their powers add up
5^-5/2 * 5^9/2
5^(-5/2 + 9/2)
5^(4/2)
5^2
25
Answer:
2 1/32
Step-by-step explanation:
3 1/4×5/8
Change the mixed number to an improper fraction
3 1/4 = (4*3+1)/4 = 13/4
13/4 * 5/8
65/32
Changing back to a mixed number
32 goes in to 65 two times with 1 left over
2 1/32
