Answer:
70.8°
Step-by-step explanation:
The sides and angles are related in a right triangle such that ...
Tan = Opposite/Adjacent
tan(S) = UT/US = 6.6/2.3
The inverse tangent function is used to find the angle from its value:
∠S = arctan(6.6/23)
∠S ≈ 70.8°
There are two (2) terms, "2x" and "8", making it a "binomial" (the "bi" prefix meaning "two"). The only variable is x, and its power is 1, making the "2x" term a first-degree term. Since the highest degree of any term is 1, the polynomial is first degree.
Selection A is appropriate.
Step-by-step explanation:
(7/9a+9/7b)^2 -ab
simplifying (7/9a+9/7b)^2
expanding the bracket
factorizing b out
49/81a^2 +98/63ab +b(b-a)
the l.c.m= (81a^2) (63ab)
multiplying through by the L.C.M
63ab×49 +98×81a^2 +b(b-a) ×81a^2 ×63ab
... the app is not working anymore
=
Answer:
What you want to do is solve for m in whichever equation it's easier to so in, then substitute that in to the other equation. For instance:
X=3m-4
Y=6-m
Solve the 2nd equation to get m=6-y
Plug that into the first equation to get x=3(6-y)-4
X=18-3y-4
X-14=-3y
14-x=3y
Y=(14-x)/3
The sum is what it is called
