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
Answer:
0.64
Step-by-step explanation:
Sallys statement is always true
for example:
-6 + 2 = -4
but if I turn it around
2 - 6 = -4
same answer
-6 -6 = -12
swap around -6 - 6 = 12
same answer
again -3 + 6 = 3
and 6 - 3 = 3
Answer:
18+10=28
Step-by-step explanation:
(3x2)+(1x3)=3x3; it means 6+3=9 and 2+2=4
(3x3)+(1x3)=3x4; it means 9+3=12 and 4+2=6
(3x4)+(1x3)=3x5; it means 12+3=15 and 6+2=8
(3x5)+(1x3)=3x6; it means 15+3=18 and 8+2=10 (total number is 28).
Answer:
The correct equation is: n + 2.2 = 5
The solution is: n = 2.8
Step-by-step explanation:
Sum is addition,
so the correct equation is:
n + 2.2 = 5
The solution is:
n = 2.8
Verification:
2.8 + 2.2 = 5
5 = 5 (true)
