Answer:
x = 9√3
Step-by-step explanation:
x^2 = 18^2 - 9^2
x^2 = 324 - 81
x^2 = 243
x = 9√3
Answer:
First of all you need to know the 
it's equal to 2 and
which is the number is between 1 and 2 and between that number there maybe the possibilities of above 0.5 or under 0.5
After that Figure out which one was bigger? 
or 
? The answer is 
and also near to 
so it should be above 0.5 .
So we know that is between 1 and 1.5.
Hopes that information was help you a lot
Answer: -pi/4 and 3pi/4
Step-by-step explanation:
Whenever you're given an inverse trig function like this, think "tangent of what gives me -1?" There are multiple ways in which you can solve this; knowing how tangent work, guess checking sin/cos to get -1, or using a calculator. The only way tangent can be an integer is if the sine and cosine of the angle are equal.
The only spots on the pi circle where this happens is pi/4, 3pi/4, 5pi/4, and 7pi/4. Answers B and D are correct
6.739 = 6.7 to the tenth place
52.192 = 52.2 to the tenth place
0.61 = 1 to the unit(ones) place
348.508 = 348.51 to the hundredth place
A(n)=a(1)+d(n-1), d=a(16)-a(15)=-5-(-53)=48
a(15)=a(1)+d*(15-1),
-53=a(1)+48*(15-1),
a(1)=-53-48*14= -725
a(n)=-725+48(n-1)
