Step-by-step explanation:
The lateral area is formula for a cylinder is
where r is radius and h is height.
The surface area of cylinder is
Volume of cylinder is
Answer:
In both cases, we have similar figures.
This means that the shape of the figures is the same, but the size is different:
PQST is similar to STNR and to NRPQ
VUYZ is similar to YZWX and to VUWX
this means that, for example, in problem 18, the ratio between ST and NR must be the same as the ratio between PQ and ST. This happens because the measure increases by the same scale factor.
With this in mind, we can solve the problem:
18)
ST = 7.5
NR = 5.5
Then the quotient ST/NR is:
ST/NR = 7.5/5.5
And, as we said above:
PQ/ST = ST/NR
PQ/7.5 = 7.5/5.5
PQ = (7.5/5.5)*7.5 = 10.23
19) Here we should have:
YZ/VU = WX/YZ
Then:
22.9/35 = WX/22.9
(22.9/35)*22.9 = WX = 14.98
Answer:
B
Step-by-step explanation:
ANSWER
EXPLANATION
We can see that, the difference in y-values from the table is 3
Also the difference in the x-values is 3.
Hence the slope is
Let y=mx +c be function equation.
We put m=1 to get,
From the table when x=2, y=10.
This implies that,
Hence the function equation is
For the fraction it will be 3/10 and percent will be 30%