Answer:
Step-by-step explanation:
2 tan(60) = 2 * (sqrt(3)/2 = sqrt(3)
1 + tan^2(60) = 1/cos^2(60) = 1//1/4 = 4
The answer is going to look a little convoluted but it should be correct.
The answer so far is sqrt(3) /4
sin(60) = sqrt(3)/2
of the 4, two is needed to get sqrt(3)/2
So far then we have sin(60)/2
If we multiply by 2 as in (sin(60)/2) we get just sin(60)
2* sqrt(3) /4 then = 2 sin(60)
Answer:
$27
Step-by-step explanation:
b will be the number of books and p will be the price, now we just use a system of equations
bp = 864
b=864/p
(b+4)(p-3) = 864
(864/p +4)(p-3) = 864
864 - 2592/p + 4p -12 = 864
864p - 2592 + 4p^2 -12p - 864p = 0
4p^2 -12p -2592 = 0
4(p^2 - 3p -648) = 0
4((p - 3/2)^2 - 2601/4) = 0 (completed the square here)
4(p - 3/2)^2 -2601 = 0
p = +/-51/2+3/2
p = 27 or -24
A negative price doesn't make sense so it's 27, now we go back to the other equation if you want to find the number of books.
b=864/p
b = 864/27
b = 32
D)
Not sure but hope this helps ;)
Answer c
this is for 20 characters
thanks tho
<u>next time use ur head</u> Step-by-step explanation:
