the answer is b)-7 or it could be 5
Don't get confused with the second pair of brackets - you must apply the negative sign on the outside to all the signs on the inside, which now gives:
Now just take away the brackets and collect like terms to get:
$1.79 i hope this helps you
sin(x)= -3/5, x is in third quadrant
In right angle triangle ,
Opposite side of angle x = -3
Hypotenuse = 5
Now we find out adjacent side of angle x so that we can find out cosx
We use pythagorean theorem
25 = 9 +x^2
x^2 = 16, so x= 4
adjacent side = 4
cos (x) =
Cos is negative in third quadrant so cos(x) =
Now we use double angle formula
=
Tan is positive in third quadrant so final answer is
Answer:
97.5 miles
Step-by-step explanation:
=65mi=60 min
All you need to do is add half of 65
=65+32.5
=97.5 miles
So therefore in 90 minutes you would drive 97.5 miles