Name: 
 

Chapter 7 Pre Test



Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

By using a graphing utility to complete the following table. Round your answer to two decimal places.

x
0.2
0.4
0.6
0.8
1.0
1.2
1.4
mc001-1.jpg
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mc001-2.jpg
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mc001-3.jpg
a.
mc001-4.jpg
b.
mc001-5.jpg
c.
mc001-6.jpg
d.
mc001-7.jpg
e.
mc001-8.jpg
 

 2. 

Use the trigonometric substitution to rewrite the algebraic expression as a trigonometric function of mc002-1.jpg, where mc002-2.jpg.
mc002-3.jpg
a.
mc002-4.jpg
b.
mc002-5.jpg
c.
mc002-6.jpg
d.
mc002-7.jpg
e.
mc002-8.jpg
 

 3. 

Rewrite the expression as a single logarithm and simplify the result.

mc003-1.jpg
a.
mc003-2.jpg
b.
mc003-3.jpg
c.
mc003-4.jpg
d.
mc003-5.jpg
e.
mc003-6.jpg
 

 4. 

Which of the following expressions is equivalent to mc004-1.jpg?
a.
mc004-2.jpg
b.
mc004-3.jpg
c.
mc004-4.jpg
d.
mc004-5.jpg
e.
mc004-6.jpg
 

 5. 

Evaluate the following expression.

mc005-1.jpg
a.
mc005-2.jpg
b.
mc005-3.jpg
c.
mc005-4.jpg
d.
mc005-5.jpg
e.
mc005-6.jpg
 

 6. 

Evaluate the following expression.

mc006-1.jpg
a.
mc006-2.jpg
b.
mc006-3.jpg
c.
mc006-4.jpg
d.
mc006-5.jpg
e.
mc006-6.jpg
 

 7. 

Solve the following equation.

mc007-1.jpg
a.
mc007-2.jpg
b.
mc007-3.jpg
c.
mc007-4.jpg
d.
mc007-5.jpg
e.
mc007-6.jpg
 

 8. 

Use a graphing utility to graph the function.

mc008-1.jpg
a.

mc008-2.jpg
d.

mc008-5.jpg

b.

mc008-3.jpg
e.

mc008-6.jpg
c.

mc008-4.jpg
 

 9. 

Use a graphing utility to graph the function.

mc009-1.jpg
a.

mc009-2.jpg
d.

mc009-5.jpg
b.

mc009-3.jpg
e.

mc009-6.jpg
c.

mc009-4.jpg
 

 10. 

Determine whether the statement is true or false. Justify your answer.

The equation  mc010-1.jpg has four times the number of solutions in the interval mc010-2.jpg as the equation mc010-3.jpg.
a.
False
b.
True
 

 11. 

Which of the following is a solution to the given equation?
mc011-1.jpg
a.
mc011-2.jpg
b.
mc011-3.jpg
c.
mc011-4.jpg
d.
mc011-5.jpg
e.
mc011-6.jpg
 

 12. 

Find all solutions of the following equation in the interval mc012-1.jpg.
mc012-2.jpg
a.
mc012-3.jpg
b.
mc012-4.jpg
c.
mc012-5.jpg
d.
mc012-6.jpg
e.
mc012-7.jpg
 

 13. 

Use the formula mc013-1.jpg, where mc013-2.jpg to rewrite the trigonometric expression in the following form.

mc013-3.jpg

mc013-4.jpg
a.
mc013-5.jpg mc013-6.jpg
b.
mc013-7.jpg mc013-8.jpg
c.
6 mc013-9.jpg
d.
8 mc013-10.jpg
e.
8 mc013-11.jpg
 

 14. 

Find the exact value of the given expression.
mc014-1.jpg
a.
mc014-2.jpg
b.
mc014-3.jpg
c.
mc014-4.jpg
d.
mc014-5.jpg
 

 15. 

Use the product-to-sum formulas to rewrite the product as a sum or difference.

mc015-1.jpg
a.
mc015-2.jpg
b.
mc015-3.jpg
c.
mc015-4.jpg
d.
mc015-5.jpg
e.
mc015-6.jpg
 

 16. 

Use the sum-to-product formulas to rewrite the sum or difference as a product.

mc016-1.jpg
a.
mc016-2.jpg
b.
mc016-3.jpg
c.
mc016-4.jpg
d.
mc016-5.jpg
e.
mc016-6.jpg
 

 17. 

Use the sum-to-product formulas to rewrite the sum or difference as a product.

mc017-1.jpg
a.
mc017-2.jpg
b.
mc017-3.jpg
c.
mc017-4.jpg
d.
mc017-5.jpg
e.
mc017-6.jpg
 

 18. 

When two railroad tracks merge, the overlapping portions of the tracks are in the shapes of circular arcs (see figure). The radius of each arc r (in feet) and the angle mc018-1.jpg are related by

mc018-2.jpg

Write a formula for mc018-3.jpg in terms of mc018-4.jpg.

mc018-5.jpg
a.
mc018-6.jpg
b.
mc018-7.jpg
c.
mc018-8.jpg
d.
mc018-9.jpg
e.
mc018-10.jpg
 

 19. 

Use a double-angle formula to find the exact value of mc019-1.jpg when mc019-2.jpg.
a.
mc019-3.jpg
b.
mc019-4.jpg
c.
mc019-5.jpg
d.
mc019-6.jpg
e.
mc019-7.jpg
 

 20. 

The range of a projectile fired at an angle q with the horizontal and with an initial velocity of mc020-1.jpg feet per second is mc020-2.jpg where r is measured in feet. A golfer strikes a golf ball at 95 feet per second. Ignoring the effects of air resistance, at what angle must the golfer hit the ball so that it travels 140 feet? (Round your answer to the nearest degree.)
a.
11°
b.
30°
c.
15°
d.
22°
e.
33°
 



 
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