40 plus 22 dollars a month times 15 months equals $370
Eqt 1 = 4a-5b=7
eqt 2 = 4a+5b=17
eqt1+eqt2= 8a=24
a=3 then 4*3-5b=7
so b=1
2(4x - 3) > = -3(3x) + 5x
8x - 6 > = -9x + 5x
8x - 6 > = - 4x
-6 > = -4x - 8x
-6 > = - 12x
-6/-12 < = x
0.5 < = x or x > = 0.5 <==
** if u multiply/divide by a negative, the inequality sign changes
Answer:
Step-by-step explanation:
its correct option is
A. log(12) - log(5)
hope it helps :)
Answer:
82.8 degrees
Step-by-step explanation:
The information given here SSS. That means side-side-side.
So we get to use law of cosines.
Let's enter are values in.
I'm going to a little simplification like multiplication and exponents.
I'm going to some more simplification like addition.
Now time for the solving part.
I'm going to subtract 164 on both sides:
I'm going to divide both sides by -160:
Simplifying left hand side fraction a little:
Now to find B since it is inside the cosine, we just have to do the inverse of cosine.
That looks like one of these:
or
Pick your favorite notation there. They are the same.
To the calculator now:
Round answer to nearest tenths: