Answer:
b=-5
Step-by-step explanation:
<3
Answer:
To graph a quadratic equation, start by solving for h in vertex form, or taking -b divided by 2 times a in standard form. Then, define or calculate the value of k and plot the point (h, k), which is the vertex of your parabola.
Step-by-step explanation:
This is an isosceles triangle because the picture shows it has two equal sides. Isosceles triangles have two equal angles.
The sum of all the angles of a triangle = 180º.
We can use this equation to solve for x:
2x + 54 = 180.
- 54 -54 Subtract 54 from both sides.
2x = 126
/ 2 /2 Divide 2 from both sides to isolate x.
x = 63º
Let's check! 63 + 63 + 54 = 180? YUP!
W has 1 line of symmetry- right down the middle. Nowhere else on the figure can it be reflected into symmetry.
Answer:
-6
Step-by-step explanation:
5+3x=x-7
-x -x
5+2x=-7
-5 -5
<u>2x</u>=<u>-12</u>
2 2
x=-6
