Perpendicular lines have slopes that multiply to -1
y=mx+b
slope=m
y=5x+3
5=slope
5 times what=-1
divide both sides by 5
what=-1/5
the equation of a line that passes through the point (x1,y1) and has a slope of m is
y-y1=m(x-x1)
given
m=-1/5
point=(-1,-1)
y-(-1)=-1/5(x-(-1))
y+1=-1/5(x+1)
y+1=-1/5x-1/5
y=-1/5x-6/5
1/5x+y=-6/5
x+5y=-6
the euation is
y+1=-1/5(x+1) or
y=-1/5x-6/5 or
x+5y=-6 (all same equation but different forms)
Step-by-step explanation:
x⁴(4x+1)
4x⁵+x⁴
degree is 5
david's procedure is correct becsuse Keisha didnt put the correct value of sin theta in equation, she forgot to mention negative sign. though solution are same but in other case it could have gone wrong
<h2>Answer:</h2>
$63.98
<h2 /><h2>Explanations:</h2>
Accordint to the question, if you drive 115 km per day, the distance covered in a week will be expressed as;

Convert kilometers to miles
Convert 805km to miles
805km = 500.204miles
Convert miles to gallons
Since 41.0miles = 1 gallon
500.204miles = 12.195gallons
This shows that the total gallons used in a week is 12.195gallons
Convert gallons to litres
1 gallon = 3.78541litres
12.195gallons = 46.163 litres
If the gas costs 1.10 euros per liter, the cost of 46.163 litres will be 50.78 euros (1.10* 46.163)
Assuming that 1euro = 1.26dollars, the amount of money spent on gas for a week in dollars will be (1.26 * 50.78) which is $63.98
500.204miles =
5,000 meters
Mark me brainliest if that helped