Answer:
Trapezoid
Step-by-step explanation:
Note that the bases (top horizontal line segment and the bottom horizontal line segment) are <em>parallel</em> while the sides are congruent.
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Solve as simultaneous equations or substitute for the x or y value, and then get the other x or y value by substituting.
Substitution method:
y + 4x = -24
x = 3y - 45
Substitute the x into the first equation.
y + 4 (3y-45) = -24
Simplify and solve for y
y + 12y - 180 = -24
13y = -24 + 180
13y = 156
y = 12
Substitute y into one of the equations to find the x value.
x = 3(12) - 45
x = -9
(-9,12) is where the lines intersect.
Answer:
x^3 + 2x^2 - 9x - 18
Step-by-step explanation:
It is (x - 3)(x + 3)(x + 2)
= (x + 2)(x^2 - 9)
= x^3 - 9x + 2x^2 - 18
= x^3 + 2x^2 - 9x - 18 (Standard Form).
Answer:
20%
Step-by-step explanation:
25 divided by 5 = 5
Convert to decimal
0.20
Convert to percentage
20%
It’s 10 points not 20
Explanation
