Answer:
y= 8x + 55
After 25 minutes the tank will have 255 gallons
Step-by-step explanation:
Answer:
!. Scale factor = 5
2. Scale factor =
Step-by-step explanation:
scale =
1. To increase the numbers, let the scale factor be = 5. So that;
0.05 x 5 = 0.25
x 5 = 0.5 x 5 = 2.50
7 x 5 = 35.00
13 x 5 = 65.00
25 x 5 = 125.00
102 x 5 = 510.00
2. To decrease the numbers, let the scale factor be . So that;
0.05 x = 0.01
x = 0.5 x = 0.10
7 x = 1.40
13 x = 2.60
25 x = 5.00
102 x = 20.40
Law of cosines:
b^2 = a^2+c^2 -2*a*c*cos(B)
b^2 = 400^2 + 240^2 - 2*400*240*cos(16)
b^2 = 217600 - 184562.25
b^2 = 33037.75
b = sqrt(33037.75)
b = 181.76 = 181.8 yds.
The answer is D.
Answer:
Step-by-step explanation:
Using the point slope equation of a line to solve the question
y-y0=m(x-x0) where (x0,y0) is the point and m is the slope of the unknown line perpendicular to the given line.
Rewriting the equation given in the form y = MX+c
2x+5y+8 = 0
5y = -8-2x
y = -8/5-2x/5
From the equation, m = -2/5
Since the unknown line is perpendicular to the give line, the slope of the given line will be;
M = -1/(-2/5)
M = 5/2
Substituting the point and the slope into the equation above
y-(-6) = 5/2(x-(-3))
y+6 = 5/2(x+3)
y+6 = 5x/2+15/2
2y+12 = 5x+15
2y-5x = 15-12
2y-5x = 3 gives the required equation of the line