Answer:
C = (1, -1)
Step-by-step explanation:
For that 3:1 division, the calculated value of point B is ...
B = (3C +1A)/(3+1)
Solving for the value of C, we find ...
4B = 3C + A . . . . multiply by 4
4B -A = 3C . . . . . subtract A; next divide by 3.
C = (4B -A)/3 = ((4(-1)-(-7))/3, (4(0)+-3)/3) . . . . substitute given values
C = (3/3, -3/3) . . . . simplify a bit
C = (1, -1)
Answer:
The answer is 5 hours.
Step-by-step explanation:
First you have to figure out how much money he already had by working at the coffee shop, so take the 15 hours and multiply it by 11$ he makes per hour and you get 165$, now you have to subtract the 200$ by 165$ to figure out how much he needs so 200 - 165 = 35 that is needed, then you keep going up an hour until your total comes above 35 so if he does 1 hour its 8, 2 hours is 16, 3 hours is 24, 4 hours is 32, and 5 hours is 40 which is finally enough to reach his goal.
Answer:
Step-by-step explanation:
Diameter of a model of earth (D) = 25.6 cm
Radius of a model of earth (r) = 
Earth has the shape of a sphere.
Total surface area of a sphere = 
Put 
So,
Total surface area of the model 
