Answer:
free points
Step-by-step explanation:
but i dont know
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:
Step-by-step explanation:
6) Slope = 5
(5 , 40) ; m =5
y - y1 = m(x -x1)
y - 40 = 5 (x - 5)
y -40 = 5x - 25
y = 5x - 25 + 40
y = 5x + 15
7) slope = 2
m =2 ; (-2 , 0)
y - y1 = m(x -x1)
y - 0 = 2(x -[-2])
y = 2(x +2)
y = 2x +4
8) D) It takes 6 miles to travel a mile
The speed of car is 45.3 miles per hour.
Further explanation:
Speed is the rate at which an object changes position with respect to time.
Given
The formula for calculating speed is:
The speed of car is 45.3 miles per hour.
Keywords: Speed, distance
Learn more about speed at:
#LearnwithBrainly
If you'd graph this function, you'd see that it's positive on [-1.5,0], and that it's possible to inscribe 3 rectangles on the intervals [-1.5,-1), (-1,-0.5), (-0.5, 1].
The width of each rect. is 1/2.
The heights of the 3 inscribed rect. are {-2.25+6, -1+6, -.25+6} = {3.75,5,5.75}.
The areas of these 3 inscribed rect. are (1/2)*{3.75,5,5.75}, which come out to:
{1.875, 2.5, 2.875}
Add these three areas together; you sum will represent the approx. area under the given curve on the given interval: 1.875+2.5+2.875 = ?
