Answer:
answer maybe x^2 + 3x - 28
explanation
first of all this is how any number of such a kind shud be written
ax^2 + bx + c
so that rearrange it
7x^2 + 3x -4
but I personally would go further to put it like this
x^2 + 3x - 28
both answers are the same so but maybe one is more considered since ur qn requires standard form
in case of any misunderstanding plizzz reach out for further explanation
hope this helps
Answers:
B: <em>The sine function increases on (0°, 90°) and (270°, 360°).</em>
C: <em>The cosine function decreases on (0°, 180°).</em>
E: <em>Both the cosine and sine functions have a maximum value of 1.</em>
F: <em>Both the cosine and sine functions are periodic.</em>
Step-by-step explanation:
<u>Statement Reason </u>
∠5 and ∠7 are vertical angles Vertical angles theorem
m∠5 = m∠7 Definition of vertical angles
m∠5 = -2(3x - 4), m∠7 = 3(x - 3) - 1 Given
-2(3x - 4) = 3(x - 3) - 1 Substitution property of equality
-6x + 8 = 3x - 9 - 1 Distributive property
3x + 6x = 8 + 10 Addition property
9x = 18 Addition property
x = 18/9 Division property
x = 2 Proved