Answer:
Step-by-step explanation:
Let required amount be x
<u>Using the ratio to find x:</u>
- 1 1/2 ÷ x = 1/3 ÷ 1
- x = 1 1/2 × 3
- x = 3/2×3
- x = 9/2
- x = 4 1/2 cups
Part A. (x + 10) is equal to (4x - 35) because they are vertical angles, so x + 10 = 4x - 35, 45 = 3x, x = 15.
Part B. Because the other two angles are also vertical, options A and B are incorrect. Because we figured out that x = 15, plugging that into both equations gets you 25 on both equations (they are equal because they are vertical angles). 2 × 25 equals 50, and because the angles of a circle add up to 360, 360 - 50 = 310. 310 ÷ 2 = 155, so the correct answer is C.
For part a:
Archimedes' principle states that the buoyancy force acting on an immersed object is equal to the weight of the fluid displaced. Because half of W displaces the water, the force must also equal half of W.
So the answer is c] (1/2) ×W.
For part b:
For an object to float entirely above water, the density of that object has to be greater or equal to the density of the water (1.00 g/cm³). So for half of it to lie below the waterline, it must be half as dense (0.5 g/cm³).
So the answer is e] 0.5 g/cm³.
Hope this helps!
I think it is C ............
Answer:
4
Step-by-step explanation: