Answer:
24a-140 is the correct answer
Step-by-step explanation:
4a²+8a-140
4a×4a=16a+8a-140
24a-140
Answer:
at y = 9
Step-by-step explanation:
where m = slope and b = y-intercept.
The question asks where does the line cross y-axis. That means what is the value of b or what is the y-intercept.
Because it is y-axis, we don't need x-axis/value or term. The value of b is 9, intercept y-axis at (0,9).
Therefore, the answer is third choice.
Answer:
C. Vertical angles are supplementary if both are right angles.
Step-by-step explanation:
You want to know the conditions when vertical angles are supplementary.
<h3>Supplementary angles</h3>
Two angles are supplementary when they total 180°.
<h3>Vertical angles</h3>
Vertical angles are formed when two lines cross. They share a vertex, but not a side. Their sides are opposite rays.
Vertical angles are always congruent.
<h3>Supplementary vertical angles</h3>
If x is the measure of one of two supplementary vertical angles, then we must have ...
x + x = 180°
2x = 180° . . . . . collect terms
x = 90° . . . . . . . divide by 2
Vertical angles will be supplementary if and only if they are both right angles.
Answer:
1.17
Step-by-step explanation:
(MUCH BETTER!)
From the definition of the sin of an angle, you know:
sin(45°) = AC/AB = 4/AB ⇒ AB = 4/sin(45°) ≈ 5.6569
sin(63°) = AC/AD = 4/AD ⇒ AD = 4/sin(63°) ≈ 4.4893
Then the difference AB-AD is:
AB -AD = 5.6569 -4.4893 = 1.1676
AB -AD ≈ 1.17 units
Sorry this took me so long to answer!
Answer:
Step-by-step explanation:
Simplifying
m = 10x + -1x
<em>Combine like terms</em>: 10x + -1x = 9x
m = 9x
Solving
m = 9x
Solving for variable 'm'.
Move all terms containing m to the left, all other terms to the right.
Simplifying
m = 9x
Hope this helps :-D