Answer:
(11x-7)
Step-by-step explanation:
tan²(<em>x</em>) - sin²(<em>x</em>) = sin²(<em>x</em>)/cos²(<em>x</em>) - sin²(<em>x</em>)
… = sin²(<em>x</em>) (1/cos²(<em>x</em>) - 1)
… = sin²(<em>x</em>) (sec²(<em>x</em>) - 1)
… = sin²(<em>x</em>) tan²(<em>x</em>)
Answer:
13
Step-by-step explanation:
Answer: 14 dimes and 26 nickels
Explanation:
Dime = 0.10$
Nickel = 0.05$
Assume that all the coins were dimes
40 x 0.10$ = 4$
4$ - 2.7$ = 1.3$
1.3$/0.05$ = 26
Thus, 26 coins are nickels.
40 - 26 = 14
And 14 coins are dime.
Let’s check:
14(0.10) + 26(0.05) = 2.7$
1.4$ + 1.3$ = 2.7$
2.7$ = 2.7$
Answer:
11
Step-by-step explanation:
first you start off by counting how many sides are on a hexagon. then you put 1 on each side. then you count by sixes tell you get exactly 65 or more. do not do 10 because you leave three people unseated.