Answer:
a. 38 you got it right
b. is provided below
Step-by-step explanation:
b. so 2/5 is .4 so 14.4 and then 3/8 is .375 and so all we need to do is divide those. 14.4 / .375 and we get 38.4.
2/5= 0.4 14.4 3/8= .375 14.4/0.375 =38.4
The diagonal of a square is always √2 times the length of the side. Your diagonal length is
8√2
11.31 . . . . rounded to the nearest hundredth
Distribute
0.3n-1.5=0.4-0.2n
Add like terms
0.5n=1.9
Divide both sides by 0.5
n=3.8
Answer:
Step-by-step explanation:
If the water in the cube rose from 6 inches to 8 inches when the cone was placed in the cube, then the difference in volumes is the volume of the submerged portion of the cone.
Initially, 10 in by 10 in by 6 in:
At he end, 10 in by 10 in by 8 in:
Thus,
Use cone's volume formula
where r is the radius of the cone's base, h is the height of the cone.
From the diagram, h=8 in, then
Answer:
7
Step-by-step explanation:
We can look at the missing side as part of a right triangle
We have 24 as one side and 25 as the hypotonouse
we have
24²+x²=25²
solve for x
25²-24²=49
x²=49
x= ±7
but it obviously can't be negative so x=7