Answer:
254 cm^2
Step-by-step explanation:
18/2 = radius = 9
9^2(Pi) = 254 cm^2
5/4 would be ur answer point slip formula is y^2 - y^1 over x^2 - x^1
Answer:
x = 9
m Angle B = 54
m Angle E = 54
Step-by-step explanation:
As m Angle B and m Angle E are congruent,
5x + 9 = 7x - 9
-2x = - 18
x = 9
m Angle B = 5x + 9 = 54
m Angle B = m Angle E
Therefore, m Angle E = 54
Yes they will please don’t worry about this, colleges are adapting and changing to how students are doing now. Please don’t beat yourself up over this
Answer:
1. 55.271 inches/lb
2. 3.075 inches/lb
3. The denser one is the pine, so it would be heavier.
Step-by-step explanation:
1. density of the pine log (which is a cylinder)
We need the weight/mass and the volume.
V(cylinder) = πr^2 * height
= πr^2 = π(5^2) = 25π = 78.54
= 78.54 * 30 = <u>2356 cubic inches</u>
The weight is 42.63.
Density = mass/volume = 2356/42.63 = <u>55.271 inches/lb</u>
2. density of the oak board (which is a rectangular prism)
We need the weight/mass and the volume.
V(prism) = l*w*h
= 5.5*1.5*3 = <u>24.75 cubic inches</u>
The weight is 8.05.
Density = mass/volume = 24.75/8.05 = <u>3.075 inches/lb</u>
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3. Picture a box made out of stone and a box made out of cardboard. Same dimensions, but the stone one would be way heavier because stone is denser.