square tan theta
(tan^2) + 1 = sec^2
so sec^2 = 11/4
sec = - (sqrt 11)/2
cos= - 2/ (sqrt 11)
answer choice a if you simplify
<span>0.607 round to 2 decimal places = 0.61
hope it helps</span>
Answer:
0.577
Step-by-step explanation:
inv. sin (0.5) = 30
tan (30) = 0.577
Try to rewrite the equation;
You know that 5 can be written as log3(3^5)
log3(3^5)=log3(x^2+18) <-- you can now cancel out log3
3^5=x^2+18
243-18=x^2
225=x^2
√225=x
+-15=x
You see that even if x is negative, the squared will always give a positive answer. Therefore, +15 and -15 are both possible answers.
Hope I helped :)
Hello from MrBillDoesMath!
Answer:
See Discussion below.
Discussion:
1/2 = x - 3/4 => add 3/4 to both sides
1/2 + 3/4 = x - 3/4 + 3/4 => as -3/4 + 3/4 = 0
1/2 + 3/4 = x + 0 =>
x = 2/4 + 3/4
x = 5/4 = 1-1/4
Thank you,
MrB