The simplified version of this equation is 14.2+-5a. Hope I helped
Answer:
b) in the vertex.
Step-by-step explanation:
In the vertex. If the parabola opens up or down the axis of symmetry is x = a where a is the x coordinate of the vertex.
If it opens to the left or right the axis is y = a where a is the y-coordinate if the vertex.
Step-by-step explanation:
Remove the parentheses: 15a²-6ab+8a²+20+5ab-31+a²-ab Combine like terms: 24a²-2ab-11
Answer: 24a²-2ab-11
Answer:
2 3/5
Step-by-step explanation:
convert mixed number into improper fraction
(whole number × denominator + numerator over denominator)
4 × 3 + 1
12 + 1
13/3
13/3 × 3/5
multiply numerators
39
multiply denominators
15
39/15
3 can be divided into both number 39 and number 15 so:
13/5
this is simplest form as an improper fraction
if the teacher wants simplest form as a whole number, the answer is:
2 3/5
Answer:
x=12
Step-by-step explanation:
To make these 2 lines perpendicular to each other, one of their angles must be equal to 90 degrees.
Therefore, we can set up an equation with one of the angles:
7x+6=90
7x=84
x=12
The information of the other angle is useless in this case, but we can use it to check by plugging in 12 for x, and seeing if it equals to 90:
8*12-6=96-6=90
Therefore, x=12.
