The formula for the area of a trapezoid is A=1/2(base one+base two)h
All you have to do is find the base one, base two, and height using the given information and then plug it into the equation.
Step-by-step explanation:
Given
for first circle, center is at and radius is units
General equation of circle with center (h,k) and radius r units is given by
for the given circle it is
for second circle center is at (0,-1) and radius is 3 units
Equation is given by
Answer: x is less than or equal to 50/7
Step-by-step explanation:
7x-18<=32 is solve just like a normal equation. Add 18 on either side so that
7x<=32+18
7x<=50
x<=50/7.
Answer:
31 scientific calculators
54 graphing calculators
Step-by-step explanation:
X = number of $15 calculators
Y = number of $67 calculators
X+Y = 85 then X = 85-Y
15X+67Y = 4083
substitute for X
15(85-Y)+67Y = 4083
1275 - 15Y + 67Y = 4083
reduce
52Y = 2808
Y = 54
X = 31
Answer:
Step-by-step explanation:
The equation to the line normal to the curve has the following format:
In whicm m is the derivative of y at the point
In this problem, we have that:
The derivative of is
So
The equation of the line normal to the curve of y=3cos1/3x is: