The correct answer is c. D might be seen as the right answer but c is correct. C is correct because x cancels out making it a no solution
Answer:
14 > -2 (2z + 3)
First you need to distribute the -2 inside the parentheses.
14 > -2(2z) + -2(3)
14 > -4z - 6 -Add 6 to both sides of the equation
14 + 6 > -4z - 6 + 6
20 > -4z -Now divide by -4 on both sides
20 / -4 > -4z / -4
-5 > z
However, when you divide by a negative number, you MUST flip the sign.
So, the answer is:
-5 < z
Hope this helps!
The formula of cone's capacity is V = (1 / 3) (pi x r x h)
we know that r = 3.5, we must find h, the slant height is H=6.5, applying pythagorean theorem h ^2 = H^2, so h= sqrt (H^2 - r^2)
h = sqrt (6.5^2 - 3.5^2) = 5.47
finally, V = (1 / 3) (3.14 x 3.5 x 5.47) = 20.03 cm^3
the surface are is A = pi x r x H = 71.43 cm^2
It is important when converting from square feet to square inches to remember to multiply twice. 166.47 times 12 times 12.
Therefore the solution is 23971.68 square inches.
