Unit 1 Test Retake

 $-17\times11.56$  Is the result rational or irrational? Explain.

• Rational; The sum of two rationals is always rational.

• Irrational; The sum of a rational and an irrational is always irrational.

• Rational; The product of two rationals is always rational.

• Irrational; The product of a nonzero rational and an irrational is always irrational.

Which will result in a Rational number?

• 1

• 2

• 3

• 4

Simplify 5√80

• 20√5

• 4√5

• 5√20

• 4√5

√18 + √2

• √20
• 4√5
• 4√2
• 10√2

√8 - 6√2

• -4√2
• 2√2
• -6√6
• -6√10

Simplify:
6√2 ⋅5√14

• 32√7
• 60√7
• 2√7
• 30√7

If a pencil was 7 centimeters long, how many millimeters long would it be?

• 70
• 700
• 7,000
• 70,000

A gallon of gas cost $3.54. Convert to pint per cent.

1 dollar=100cents 1gallon=4quart 1quart=2 pints

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Find the product:

(3x – 1)(x + 5)

• 3x² + 4x + 5

• 3x² + 4x - 5

• 3x² + 14x + 5

• 3x² + 14x - 5

Perform the indicated operation

(7r-6)(7r+6)

• 49r²+36

• 49r²-36

• 49r²+84r+36

• 49r²+42r+36