Answer:
4618.14
or 4618
Step-by-step explanation:
From T.S.A = 2
rh + 2
where T.S.A = 1628
1628 = 2rh + 2
1628 = ( rh + ) 2
by dividing both side by 2
= rh +
259.10 = rh +
rh = 259.10 -
h = 
<u> </u>(1)
From Radius + Height = 37
r + h = 37 <u> </u>(2)
by substituting eqn 1 into 2
r + = 37
by multiplying r to both side
+ 259.10 - = 37r
259.10 = 37r
r = 
r = 7.00 ≅ 7
From Eqn 2
r + h = 37
7 + h = 37
h = 37 - 7
h = 30
so Volume of a cylinder = 
V = * 
* 30
V = 4618.14 ≅ 4618
Answer:
slope of the line is -0.5
y-intercept is 13
Explanation:
The general formula of the linear equation is:
y = mx + c
where m is the slope and c is the y-intercept
1- getting the slope:
We are given the two points:
(6,10) representing (x1 , y1)
(12,7) representing (x2 , y2)
The slope of the line will be calculated as follows:
m = (y2-y1) / (x2-x1) = (7-10) / (12-6) = -3/6 = -0.5
The equation of the line now becomes:
y = -0.5x + c
2- getting the value of the y-intercept:
To get the value of the y-intercept (c), we will use any of the given points, substitute in the equation of the line and solve for c. I will use the point (6,10) as follows:
y = -0.5x + c
10 = -0.5(6) + c
10 = -3 + c
c = 13
Based on the above, the equation of the line would be:
y = -0.5x + 13
Hope this helps :)
Answer:
12 kg
Step-by-step explanation:
15%×80 =
= 15×80/100
= 15×8/10
= 120/10
= 12 kg
Answer:
4.9
Step-by-step explanation:
4 9/10
9/ 10 = 0.9
So 4.9
Answer:
2 : 1
Step-by-step explanation:
The ratio of copper to zinc is
400 : 200 ← divide both parts by 200
= 2 : 1 ← in simplest form
