360 - 4x - (x+40) - (x+10) = A
A = 360 - 4x - x - 40 - x - 10
A = 310 - 6x
A = 142
If R represents Reggie's time, the total time for the team is
.. R +(R +2.45) +(R -3.81) = 3R -1.36
.. = 3*57.12 -1.36
.. = 170.00 . . . seconds
Answer:
area of the rectangle is 168 inch²
area of triangle:
→
* base * height
→
* 2 * 12
→ 12 inch²
area of left triangle is 12 inch² and right triangle is 12 inch²
Both triangle have same area; so total area of both: 2 * 12 = 24 inch²
Area of the trapezoid: area of the rectangle + area of two triangles
→ 168 inch² + 24 inch²
→ 192 inch²
Answer:
Straight-line equations, or "linear" equations, graph as straight lines, and have simple variable expressions with no exponents on them. If you see an equation with only x and y – as opposed to, say x2 or sqrt(y) – then you're dealing with a straight-line equation.
There are different types of "standard" formats for straight lines; the particular "standard" format your book refers to may differ from that used in some other books. (There is, ironically, no standard definition of "standard form".)