Given:
Height of cylinder = 12 cm
Diameter of cylinder = 6 cm
To find:
Surface area of the cylinder
Solution:
Radius = 6 ÷ 2 = 3 cm
Surface area formula:

Substitute the given values.


= 286.2 cm²
The surface area of the cylinder is 286.2 cm².
Answer:
Value is 1.
Step-by-step explanation:
To find the value of 
is always equal to 1, but if zero to the power 0 is not defined.
Or simply we say that:
is always equal to 1
Here,
A non-zero number = 30 ≠0
then;
by definition:

Therefore, the value of
is 1
Answer:
B
Step-by-step explanation:
<em>a/b × d/c = a×d / b×</em><em>c</em>
Multiply the numerators 1st.
x × x = x^2
Next is the Denominator.
x+3 × x+2
now try to multiply each term of the 1st expression with the 2nd.
x × x + x × 2 + 3 × x + 6
x^2 + 2x + 3x + 6
x^2 + 5x + 6
Write the numerator & denominator in their respective places.
x^2 / x^2 + 5x + 6
Answer:
B and D
Step-by-step explanation:
slope = 2/7
perpendicular equals negative reciprocal
so slope must be -7/2
A = 2/7
B = -7/2
C = 7/2
D = -7/2
Answer:
the answer to this question is seven