Length (L): 3w + 8
width (w): w
Perimeter (P) = 2L + 2w
128 = 2(3w + 8) + 2(w)
128 = 6w + 16 + 2w
128 = 8w + 16
112 = 8w
14 = w
Length (L): 3w + 8 = 3(14) + 8 = 42 + 8 = 50
Answer: width = 14 inches, length = 50 inches
Answer:
yes, it is a right triangle and ∡Q is the right angle
Step-by-step explanation:
if the slope of QR is the opposite reciprocal of QS then the two segments are perpendicular and form a 90° angle
slope of QR: -3 - (-1) ÷ 2 - 0 = -2 ÷ 2 = -1
slope of QS: -3 - (-1) ÷ 2 - 4 = -2 ÷ -2 = 1
-1 and 1 are opposite and reciprocal so m∡Q = 90°
Answer: 2.204
Step-by-step explanation:
Answer:
y=7/5x+7
Step-by-step explanation:
Use the saying "rise over run" to find the slope. If we go from the bottom most dot, we have to rise 7 and run 5 to reach the next dot, making the slope 7/5.
Next, we have to find the y-intercept. Do this by locating where the line crosses the y-axis, in this case it is at 7.
Finally, plug these numbers into slope-intercept format: y=mx+b (m is slope, and b is y-intercept).
