Answer: C: 12-7x
Step-by-step explanation:
This expression is a good example of the difference of two squares, as 144 is the square of 12, while 49x² is the square of 7x.
Any difference of two squares 
can be factored into the sum of their square roots times the difference of their square roots 
.
Let's factor our expression.
Out of all the options given, only 
is a factor. Hence, option C is correct.
Those 2 angles makes up corresponding angles in parallel lines. Which means, both two angles equal to each other because this is a rule that exists when both of the lines are parallel to each other which is indicated with red arrows in the photo.
75 = 11x - 2
75 + 2 = 11x
77 = 11x
X = 77 / 11
X = 7
The answer is 7.
The answer is possibly 5x=5. Or x=1.
Answer:53
Step-by-step explanation:56-3 =53
Exam + Tests + Quizzes + HW + Projects = 90
Exam = 10% * grade (x) = 0.1 * x
Tests = 50% * 85 = 0.5 * 85 = 42.5
Quizzes = 15% * 95 = 0.15 * 95 = 14.25
HW = 15% * 98 = 0.15 * 98 = 14.7
Projects = 10% * 92 = 0.1 * 92 = 9.2
Exam + Tests + Quizzes + HW + Projects = 90
(0.1 * x) + 42.5 + 14.25 + 14.7 + 9.2 = 90
(0.1 * x) + 80.65 = 90 (subtract 80.65 from each side)
(0.1 * x) = 9.35 (divide 0.1 from each side)
(0.1 * x)/0.1 = 9.35/0.1
x = 0.935
The answer is 93.5%
