Sn = n/2 ( a1+an)
= 6/2 (10+85)
= 3 (95)
= 285
Answer:
11.5%
Step-by-step explanation:
hope this helps :))
Answer:
Step-by-step explanation:
q log a is equivalent to log a^q. Note: This assumes that the base of your logarithmic system is 10.
-3 log b is equivalent to log b^(-3)
and so q log a -3 log b in condensed logarithm form is
log {a^q*b^(-3)}
a^q
or log -----------------
b^3
Answer:
16 * √3 cm² or approximately 27.71 cm²
Step-by-step explanation:
Given the 8 cm length of the diagonal and the 30° (π/6 radians) angle with one of the sides, we can calculate the width and height of the rectangle using:
8 * cos(π/6) = 8 * ((√3)/2) = 4 * √3
8 * sin(π/6) = 8 * (1/2) = 4
Multiply those two values together to get the area and you get
16 * √3 cm²
Answer:
c = - 65
Step-by-step explanation:
Combine like terms on the left
2/5 c - 1/5 c + 4 = - 9
1/5 c + 4 = - 9
Subtract 4 from both sides
1/5 c = - 9 - 4
Combine like terms on the right
1/5 c = - 13
Multiply both sides by 5
5(1/5 c) = - 13 * 5
c = - 65
