Chapter 1 Mathematics Quiz- Team microsoft

1. √45 is irrational

• True

• False

Answer explanation

True!

√45=6.7082039325

Which means, it's irrational!

Write 4.57 x 10^4 in full form

• 45700

• 4570

5.6 x 10^-3

• 0.0056

• 5.6

• 0.00056

125 as a power of 5

• 5^2

• 5^5

• 5^3

• 5^15

5^(-2) as a fraction in the simplest form

• 1/5^2

• 1/25

• Not possible

• 1/2.5

√5+√4 is rational or irrational?

• Irrational

• Rational

Write 12^(-2)x12^(-3) as a single power

• 12^(−5)

• 12^(5)

• 5^(-12)

• 5^(12)

1.35 * 10^10 . When someone writes this number in it's full form, how many zeros will it have?

• 10

• 8

• 9

• 11