Chapter 7

Applied Calculus: For Business, Economics, and the Social and Life Sciences · 80 exercises

Problem 1

Evaluate the double integrals in Exercises 1 through 18 .\(\int_{0}^{1} \int_{1}^{2} x^{2} y d x d y\)

6 step solution

Problem 2

Evaluate the double integrals.\(\int_{1}^{2} \int_{0}^{1} x^{2} y d y d x\)

3 step solution

Problem 3

V\(\int_{0}^{\ln 2} \int_{-1}^{0} 2 x e^{y} d x d y\)

3 step solution

Problem 4

Evaluate the double integrals.\(\int_{2}^{3} \int_{-1}^{1}(x+2 y) d y d x\)

6 step solution

Problem 5

Evaluate the double integrals.\(\int_{1}^{3} \int_{0}^{1} \frac{2 x y}{x^{2}+1} d x d y\)

5 step solution

Problem 7

Evaluate the double integrals.\(\int_{0}^{4} \int_{-1}^{1} x^{2} y d y d x\)

4 step solution

Problem 8

Evaluate the double integrals.\(\int_{0}^{1} \int_{1}^{5} y \sqrt{1-y^{2}} d x d y\)

5 step solution

Problem 9

Evaluate the double integrals.\(\int_{2}^{3} \int_{1}^{2} \frac{x+y}{x y} d y d x\)

6 step solution

Problem 10

Evaluate the double integrals.\(\int_{1}^{2} \int_{2}^{3}\left(\frac{y}{x}+\frac{x}{y}\right) d y d x\)

12 step solution

Problem 11

Evaluate the double integrals.\(\int_{0}^{4} \int_{0}^{\sqrt{x}} x^{2} y d y d x\)

3 step solution

Problem 12

Evaluate the double integrals.\(\int_{0}^{1} \int_{1}^{5} x y \sqrt{1-y^{2}} d x d y\)

6 step solution

Problem 13

Evaluate the double integrals.\(\int_{0}^{1} \int_{y-1}^{1-y}(2 x+y) d x d y\)

6 step solution

Problem 15

Evaluate the double integrals.\(\int_{0}^{1} \int_{0}^{4} \sqrt{x y} d y d x\)

7 step solution

Problem 16

Evaluate the double integrals.\(\int_{0}^{1} \int_{x}^{2 x} e^{y-x} d y d x\)

5 step solution

Problem 17

Evaluate the double integrals.\(\int_{1}^{e} \int_{0}^{\ln x} x y d y d x\)

6 step solution

Problem 18

Evaluate the double integrals.\(\int_{0}^{3} \int_{y^{2} / 4}^{\sqrt{10-y^{2}}} x y d x d y\)

7 step solution

Problem 19

Use inequalities to describe \(R\) in terms of its vertical and horizontal cross sections.\(R\) is the region bounded by \(y=x^{2}\) and \(y=3 x\).

6 step solution

Problem 20

Use inequalities to describe \(R\) in terms of its vertical and horizontal cross sections.\(R\) is the region bounded by \(y=\sqrt{x}\) and \(y=x^{2}\).

5 step solution

Problem 21

Use inequalities to describe \(R\) in terms of its vertical and horizontal cross sections.\(R\) is the rectangle with vertices \((-1,1),(2,1)\), \((2,2)\), and \((-1,2)\).

4 step solution

Problem 22

Use inequalities to describe \(R\) in terms of its vertical and horizontal cross sections.\(R\) is the triangle with vertices \((1,0),(1,1)\), and \((2,0)\).

5 step solution

Problem 23

Use inequalities to describe \(R\) in terms of its vertical and horizontal cross sections.\(R\) is the region bounded by \(y=\ln x, y=0\), and \(x=e\).

4 step solution

Problem 25

Evaluate the given double integral for the specified region \(R\).\(\iint_{R} 3 x y^{2} d A\), where \(R\) is the rectangle bounded by the lines \(x=-1, x=2, y=-1\), and \(y=0\).

5 step solution

Problem 26

Evaluate the given double integral for the specified region \(R\).\(\iint_{R}(x+2 y) d A\), where \(R\) is the triangle with vertices \((0,0),(1,0)\), and \((0,2)\).

4 step solution

Problem 28

Evaluate the given double integral for the specified region \(R\).\(\iint_{R} 48 x y d A\), where \(R\) is the region bounded by \(y=x^{3}\) and \(y=\sqrt{x}\).

4 step solution

Problem 29

Evaluate the given double integral for the specified region \(R\).\(\iint_{R}(2 y-x) d A\), where \(R\) is the region bounded by \(y=x^{2}\) and \(y=2 x\).

8 step solution

Problem 30

Evaluate the given double integral for the specified region \(R\).\(\iint_{R} 12 x d A\), where \(R\) is the region bounded by \(y=x^{2}\) and \(y=6-x\)

7 step solution

Problem 31

Evaluate the given double integral for the specified region \(R\).\(\iint_{R}(2 x+1) d A\), where \(R\) is the triangle with vertices \((-1,0),(1,0)\), and \((0,1)\).

8 step solution

Problem 32

Evaluate the given double integral for the specified region \(R\).\(\iint_{R} 2 x d A\), where \(R\) is the region bounded by \(y=\frac{1}{x^{2}}, y=x\), and \(x=2\).

6 step solution

Problem 33

Evaluate the given double integral for the specified region \(R\).\(\iint_{R} \frac{1}{y^{2}+1} d A\), where \(R\) is the triangle bounded by the lines \(y=\frac{1}{2} x, y=-x\), and \(y=2\).

5 step solution

Problem 34

Evaluate the given double integral for the specified region \(R\).\(\iint_{R} e^{y^{3}} d A\), where \(R\) is the region bounded by \(y=\sqrt{x}, y=1\), and \(x=0\).

6 step solution

Problem 35

Evaluate the given double integral for the specified region \(R\).\(\iint_{R} 12 x^{2} e^{y^{2}} d A\), where \(R\) is the region in the first quadrant bounded by \(y=x^{3}\) and \(y=x\).

9 step solution

Problem 37

Sketch the region of integration for the given integral and set up an equivalent integral with the order of integration reversed.\(\int_{0}^{2} \int_{0}^{4-x^{2}} f(x, y) d y d x\)

4 step solution

Problem 38

Sketch the region of integration for the given integral and set up an equivalent integral with the order of integration reversed.\(\int_{0}^{1} \int_{0}^{2 y} f(x, y) d x d y\)

4 step solution

Problem 40

Sketch the region of integration for the given integral and set up an equivalent integral with the order of integration reversed.\(\int_{0}^{4} \int_{y / 2}^{\sqrt{y}} f(x, y) d x d y\)

4 step solution

Problem 41

Sketch the region of integration for the given integral and set up an equivalent integral with the order of integration reversed.\(\int_{1}^{e^{2}} \int_{\ln x}^{2} f(x, y) d y d x\)

4 step solution

Problem 42

Sketch the region of integration for the given integral and set up an equivalent integral with the order of integration reversed.\(\int_{0}^{\ln 3} \int_{e^{x}}^{3} f(x, y) d y d x\)

6 step solution

Problem 43

Sketch the region of integration for the given integral and set up an equivalent integral with the order of integration reversed.\(\int_{-1}^{1} \int_{x^{2}+1}^{2} f(x, y) d y d x\)

4 step solution

Problem 44

Sketch the region of integration for the given integral and set up an equivalent integral with the order of integration reversed.\(\int_{-1}^{1} \int_{-\sqrt{y+1}}^{\sqrt{y+1}} f(x, y) d y d x\)

5 step solution

Problem 46

Use a double integral to find the area of \(R\).\(R\) is the triangle with vertices \((0,-1),(-2,1)\), and \((2,1)\).

7 step solution

Problem 47

Use a double integral to find the area of \(R\).\(R\) is the region bounded by \(y=\frac{1}{2} x^{2}\) and \(y=2 x\).

7 step solution

Problem 48

Use a double integral to find the area of \(R\).\(R\) is the region bounded by \(y=\sqrt{x}\) and \(y=x^{2}\).

3 step solution

Problem 49

Use a double integral to find the area of \(R\).\(R\) is the region bounded by \(y=x^{2}-4 x+3\) and the \(x\) axis.

6 step solution

Problem 50

Use a double integral to find the area of \(R\).\(R\) is the region bounded by \(y=x^{2}+6 x+5\) and the \(x\) axis.

5 step solution

Problem 51

Use a double integral to find the area of \(R\).\(R\) is the region bounded by \(y=\ln x, y=0\), and \(x=e\).

6 step solution

Problem 53

Use a double integral to find the area of \(R\).\(R\) is the region in the first quadrant bounded by \(y=4-x^{2}, y=3 x\), and \(y=0\).

4 step solution

Problem 54

Use a double integral to find the area of \(R\).\(R\) is the region bounded by \(y=\frac{16}{x}, y=x\), and \(x=8\).

4 step solution

Problem 55

Find the volume of the solid under the surface \(z=f(x, y)\) and over the given region \(R\).\(f(x, y)=6-2 x-2 y\) \(R: 0 \leq x \leq 1,0 \leq y \leq 2\)

4 step solution

Problem 56

Find the volume of the solid under the surface \(z=f(x, y)\) and over the given region \(R\).\(f(x, y)=9-x^{2}-y^{2}\) \(R:-1 \leq x \leq 1,-2 \leq y \leq 2\)

4 step solution

Problem 57

Find the volume of the solid under the surface \(z=f(x, y)\) and over the given region \(R\).$$ f(x, y)=\frac{1}{x y} $$ \(R: 1 \leq x \leq 2,1 \leq y \leq 3\)

5 step solution

Problem 58

Find the volume of the solid under the surface \(z=f(x, y)\) and over the given region \(R\).$$ f(x, y)=e^{x+y} $$ \(R: 0 \leq x \leq 1,0 \leq y \leq \ln 2\)

4 step solution

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