D. The "a" value stretches the function vertically by a factor of absolute value of a.
Answer:
1500.50
Step-by-step explanation:
u need to multiply 212 x 7 and then add together 14 quarters
Assuming you want the expression to be simplified.
We begin with the following:

Simplify the first part,

. That is 25. Now we have this:
Next, simplify

, which is 1/3, and get this:
The next part is

. Simplify the denominator,

, which is 81. Simplify the numerator, which is 1/125. Then divide 1/125 by 81, which we will keep as a fraction for simplicity's sake, but simplify it to

. Now we have:

Now simplify

, which is 0.2, or 1/5. Now we have:
Finally, simplify

. That is 1/27. We have:

Lastly, multiply them all together! Now we are done, with the product of:

That certainly did take a while to type in all the LaTex, so I really hope that helped!
Note- if anything isn't working with the LaTex, just tell me and I'll fix it! (:
Answer:
(a-b-c)(X^2-Y)
Step-by-step explanation:
DONE!!
Answer:
We use cosine rule also called cosine law which states
c^2=a^2+b^2-2abcosC
given
a=8cm, b=7cm, c=9cm cos C?
9^2=8^+7^2-2*8*7 cos C
expand
81=64+49-112 cos C
like terms together
81-113=-112 cos C
-32=-112cos C
multiply both sides by -1
32=112cos C
divide both sides by 112
32/112=cos C
cosC=0.2857
find cos inverse of 0.2857
angle C= 73.40