Two cars started from the same point. one traveled north at 45 mi/h and the other traveled south at 65 mi/h. how far apart were
1 answer:
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Answer:
Step-by-step explanation:
Angle BCA is inscribed in that circle. The rule is that the inscribed angle is half the measure of the arc it intercepts. The arc it intercepts is arc AB which measures 96 degrees. That means that
and
4x + 4 = 48 and
4x = 44 so
x = 11
Choice A is the one you want.
Answer:
Step-by-step explanation:
The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.
Parallel lines have the same gradient. Hence the gradient of line r is .
Susbt. m=,
To find c, substitute a coordinate.
When x=3, y= -9,
-9= 1 +c
c= -9-1
c= -10
Thus the equation of line r is .
Answer:
Step-by-step explanation:
we know that
If the tank half-filled with water is at 20 feet, then the height of the tank is 40 feet
The volume of the cylindrical tank is equal to
we have
assume
substitute and solve for r
Find the diameter
Remember that the diameter is two times the radius