TEKS.MATH.9-12.VII.C.2

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the decay factor?

• ^.08
• ^1.08
• .92
• 8

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TEKS.MATH.9-12.VII.C.2

You have $10 in you bank account.  It doubles every month.  How much money will you have after 5 months?

• $50
• $35
• $320
• $250

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TEKS.MATH.9-12.VII.C.2

Find a polynomial function of degree 3 with zeros 3i and -2.

• P(x) = x³+2x²+9x+11
• P(x) = x³-2x²+9x+18
• P(x) = x³+2x²+9x+18
• P(x) = x²-3ix+2x-6i

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TEKS.MATH.9-12.VII.C.2

TEKS.MATH.9-12.II.B.1

Find the general rule for: 64, -32, 16, -8, …  

• 64(1/2)^n-1
• (-32)^n-1
• 64(-1/2)^n-1
• (32)^n-1

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TEKS.MATH.9-12.VII.C.2

What will be the length if there were 20 grocery carts? (Hint: Find explicit rule first)

• 98 inches
• 266 feet
• 266 inches
• 98 feet

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TEKS.MATH.9-12.VII.C.2

Find an explicit rule for the nth term of the sequence

• a_n= 36n-337

• a_n= -201+36(n-1)

• a_n= 37n-338

• a_n= -301+37(n-1)

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TEKS.MATH.9-12.VII.C.2

The note middle C on a piano is tuned so that the string vibrates at 262 Hertz. Tuning the notes is determined by equation 262 ⋅ (2^n/12), where n takes the values of 1 through 11. Find the tuning, rounded to the nearest Hertz, for notes 2 and 4. Select all.

• 278

• 294

• 330

• 371

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TEKS.MATH.9-12.VII.C.2

Approximately what interest rate would be needed in order to grow Christian's investment of $1400 to $2500 in 10 years if the interest was compound monthly?

• 5.96%

• 5.84%

• 5.81%

• 5.88%

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TEKS.MATH.9-12.VII.C.2

The number of hours to paint a house varies inversely with the number of painters working. A 2400-square foot house can be painted in 27 hours by 6 painters. How many painters would need to work in order to paint the house in 18 hours?

• 8 painters
• 10 painters
• 9 painters
• 11 painters

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TEKS.MATH.9-12.VII.C.2

TEKS.MATH.9-12.II.C.1

More and more people are purchasing food from farmers' markets. As a consequence, a market researcher predicts that the number of farmers' markets will increase by 15% each year. If there are 6,200 farmers' markets this year, how many will there be in 10 years? (Round to the nearest whole number if necessary).

• 25,082

• 12,937

• 62,000

• 43,511

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TEKS.MATH.9-12.VII.C.2