Answer:
942
Step-by-step explanation :
so your d is 300 so your r = 300/2= 150
a=3.14*r*r= 3.14*150*150= 70650
c= 3.14*d= 3.14*300= 942
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OR
The curved surface area of solid cylinder is
As we are given that:
Diameter of solid cylinder = 8 cm
Length or Height o solid cylinder = 140 cm
Formula used to calculate the curved surface area of cylinder is:2n x h
Curved surface area of cylinder =2r x h
where,
r = radius of cylinder
h = height or length of cylinder
Radius of cylinder = daimeter
Now putting all the given values in above formula, we get:
Curved surface area of cylinder = 2x 22/7 x 140cm
Curved surface area of cylinder = 
Therefore, the curved surface area of solid cylinder is3520cm^{2}
Answer:
600 m³
Step-by-step explanation:
The shape we have is a rectangular pyramid:
Formula:<u><em> (volume of a rectangular pyramid)</em></u>
Volume = (1/3) × Base Area × height
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In our case :
Base area = L × W = 20 × 18 = 360 m²
height = 5 m
⇒ Volume = (1/3) × Base Area × height
Answer:
Step-by-step explanation:
Solving
5x + -2y = 12
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '2y' to each side of the equation.
5x + -2y + 2y = 12 + 2y
Combine like terms: -2y + 2y = 0
5x + 0 = 12 + 2y
5x = 12 + 2y
Divide each side by '5'.
x = 2.4 + 0.4y
Simplifying
x = 2.4 + 0.4y
Answer:
There are 4845 ways to select four patrols
Step-by-step explanation:
Total number of students in 5 th grade = 20
No. of students selected for patrols = 4
We are supposed to find In how many ways can the four patrols be selected
We will use combination
Formula : 
Substitute n = 20 and r = 4
So,the four patrols can be selected in no. of ways = 
Hence There are 4845 ways to select four patrols
When you are seeing which number is bigger first you look at the first digit
<u></u>0.<u>8</u>3 or 0.<u>8</u>02
^8 ^8
If they equal the same, look at the second digit
0.8<u>3</u> or 0.8<u>0</u>2
^3 ^0
3 is greater than 0
<u>0.83 is larger
</u>
you can also look at it this way:
0.83 = 0.830
What is bigger
0.802 or 0.830?
0.83 is bigger
