Answer:
The length of the diameter is 18 cm
Step-by-step explanation:
In this question, we are asked to calculate the diameter of a right cylinder, given that the radius and the height are equal and given the value of the surface area.
Mathematically, the surface area of a cylinder can be represented by the equation;
A = 2 π r( r + h)
since r = h, we can say h = r
Thus, the equation becomes;
A = 2 π r( r + r)
A = 2 π r(2r)
A = 4 π r^2
From the question, we can see that the value of A = 324 π
substituting this, we have;
324 π = 4 π r^2
4r^2 = 324
r^2 = 324/4
r^2 = 81
r = root of 81
r = 9 cm
The value of the diameter is two times the radius
Hence D = 2r = 2 * 9 = 18 cm
Answer: First you need to calm down my man. a. 12. b 15 c. 9
2 1/2 hours
2 9/12 + 2 2/12 (3rd option)
Marsh trail is 2 5/10 or 2 1/2 miles longer than Woodland Trail
Step-by-step explanation: Question 3. a. Common Denominator is 12 b. Common Denominator is 15 c. Common denominator is 9. Question 4 It will take 2 and 1/2 hours to complete all of his tasks. Question 5. 2 9/12 + 2 2/12 Question 2. Marsh Trail is 2 5/10 and 2 1/2 miles longer than Woodland Trail. Hope this helps and stay calm.
Say what now I hadn’t learned that yet omg I’m sry
B and A if Im not wrong hope I didn’t get it wrong
Answer:
x=±
Step-by-step explanation:
