Divide 1017,36 by pi and by the height (the inverse of the formula for the volume):
1017,36/3,14 = 324
324/9 = 36
Answer:
a = 100
b = 5
Step-by-step explanation:
Just plug this into the equation it shows:
R(1) = (500 + (100)(1)) (50 - (5)(1))
Answer:
64 weeks
Step-by-step explanation:
Given that you already have $400 saved and you save $50 per week, in x weeks, you would have saved:
400 + (50 * x)
Also, given that Mr Brierley has $2000 in his bank account and he saves $25 per week, in x weeks, he would have:
2000 + (25 * x)
You and Mr Brierley would have the same amount of money when:
400 + (50 * x) = 2000 + (25 * x)
Solving for number of weeks, x, we have:
400 + 50x = 2000 + 25x
Collecting like terms:
50x - 25x = 2000 - 400
25x = 1600
x = 1600 / 25
x = 64
Hence, it will take 64 weeks for you and Mr Brierley to have the same amount of money.
Answer:
2
Step-by-step explanation:
Given the circle: 
To determine the length of the radius, we complete the square.
Step 1: Subtract 4 from both sides
Step 2: Divide the coefficient of x and y by 2, square it and add it to both sides
Step 3: Factorize the Left Hand side and simplify the Right Hand side.
Comparing with the standard form of the equation of a circle
r=2
Therefore, the radius of the circle is 2.
<span> (-2.9a + 6.8 ) + (4.4a - 7.37)
=</span> -2.9a + 6.8 + 4.4a - 7.37
= - 2.9a + 4.4a + 6.8 - 7.37
= 1.5a -0.57
Answer: 1.5a - 0.57
