Answer:
C
140
Step-by-step explanation:
Partitioning means to find the dividing point between two points.
This is done by prorating the difference in x- and y-coordinates, and adding to the first.
We will take the first point (from A to B) as A(16,8).
The difference is B-A, i.e.
(1,3)-(16,8) = (-15,-5)
2/5 of the difference is (2/5)*(-15,-5) = (-6,-2)
Add the difference to the first coordinates (point A) gives
Point of division = (16,8)+(-6,-2) = (16-6, 8-2) = (10,6)
Answer:
1. X=95
2. M=60
3.R=70
4.Q=75
5.A=75
6.B=105
7. ∠ACB = ∠BCA
8. ∠DEG = 75
9.∠FOE = 64 ∠COF = 116
10. ∠COE = 137 ∠DOE= 43
11. ∠WXZ = 149
12. ∠RSZ = 99.5
Step-by-step explanation:
Answer:
You would round down, but not to 3. You would round it down to 4.
Step-by-step explanation:
If a decimals last digits are five or more, you would round up. But 4.22 would be rounded down because its less than 5.
Answer:
Amount of NaCl = 23.376 gram
Step-by-step explanation:
Given:
Molarity = 4M
Volume of solution = 100 ml
Find:
Amount of NaCl
Computation:
Molar mass of Na = 22.99 g/mole
Molar mass of Cl = 35.45 g/mole
Molar mass of NaCl = 22.99 + 35.45
Molar mass of NaCl = 58.44 g/mole
Molarity = [moles of solute / volume of solute(ml)]1,000
4 = [moles of solute / 100]1000
Moles of solute = 0.4
moles of solute = Mass of solute / molar mass
0.4 = Amount of NaCl / 58.44
Amount of NaCl = 23.376 gram
