Answer:
solution:-
diameter of a cylinder (d) = 12 cm
length(h) = 30 cm
curved surface area of cylinder (csa) = ?
we know that ,
therefore , csa of cylinder = 2πrh
r = d/2
or, r = 12/2= 6 cm
Then, csa if cylinder = 2 ×22/7×30
= 2×22×30/7
= 1320/7
= 188.57 Square cm Ans,......
Answer:
1. 45
2. 45
3. 90
4. 45
5. 45
6. 60
7. 60
8. 60
9. 60
10. 60
Step-by-step explanation:

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<u>verification:</u>
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Answer: X = 4.5
Step-by-step explanation:
The proportion is 8/9 for the lines. All we have to do is divide 4 by 8/9 to find the exact value of X.
4/(8/9) = 4.5
I hope this helps!
Answer:
First find the total interest using Simple interest formula.
Given: The Sum(P) =$4,000, Rate (R%) = 6.5% and Time(T)=5 years.
To,calculate the total interest (S.I) on a principle amount (P) at a certain rate per annum (R), after a certain years of time(T) is calculated using formula:

Substitute the values of P, R and T in above formula to solve for total interest;
Simplify:
= $ 1300
Therefore, the total interest is, $1300
hence, the ending balance = P+S.I = $4000+$1300 = $5300.