Answer:
Im pretty sure it's 6
Step-by-step explanation:
If it's -4+8, -4 is 4 less than 0. 8 is 8 more than 0, also 4+4. so -4+4 would be zero, then there's 4 more and 0+4 is 4
<u>Answer:</u> B.
Step-by-step explanation:
Diameter = Radius divided by 2.
The volume formula of a sphere is V = 4/3 π r^3.
Radius of this problem = 7.5.
So, V = 4/3 π (7.5) ^3.
Once you "plug in" the radius and solve the equation, you get an answer of 1,766.3, rounded to the nearest tenth.
<u>Don't forget the inches cubed!</u>
The width of the border will be about 2.5 feet.
The area of the rug is 9 by 7. Let's call the width of the border x. Therefore, the length of the rug will switch to 9 + 2x. The border is on both sides of it, so we add on 2x. Then, the width is 7 + 2x.
The area of the room is therefore: (9 + 2x)(7+ 2x).
We know the area of the room, so we can write and solve the following equation.
(9 + 2x)(7 + 2x) = 167
4x^2 + 32x + 63 = 167
4x^2 + 32x - 107 = 0
At this point, use the quadratic formula and x will equal about 2.5.
Answer:
46.06
Step-by-step explanation:
the angle from the right triangle is 43.94 so you subtract from 90 and 46.06
