Warm Up Day 56

 $-10x\ =-40$  

•  $4$  

•  $-4$  

•  $\frac{1}{4}$  

•  $400$  

Select all the perfect squares.

• $\sqrt{361}$

• $\sqrt{224}$

• $\sqrt{81}$

• $\sqrt{2}$

• $\sqrt{1}$

Choose the GREATEST.

• $1.8\ \times\ 10^{-10}$

• $6\ \times\ 10^{-7}$

• $5.2\ \times\ 10^{-5}$

• $7.8\ \times\ 10^{-8}$

Choose the LEAST.

• $\frac{1}{3}$

• $30\%$

• $0.13$

• $1.3\ \times\times\ 10^{-3}$

Which is the power of ten that equals

 $\frac{1}{10}\ \times\frac{1}{10}\ \times\frac{1}{10}\ \times\frac{1}{10}$ ?

•  $10^4$  

•  $10^{-4}$  

•  $10,000$  

•  $0.0001$  

Which of the following has the GREATEST absolute value?

• $-\frac{4}{5}$

• $8.3$

• $-18$

• $\frac{42}{3}$

The line pictured has a(n) ______ slope.

• Undefined
• Zero
• Positive
• Negative

Write 4.83 x 10^-6 in Standard Form.

• 0.00048300

• 0.00004830

• 0.00000483

• 0.00000438

The half-life of Uranium is 2.5 x 10⁵ years. What is this in standard form?

• 2500000

• 250

• 25000

• 250000

Translate this phrase into an algebraic expression:

the quotient of 4 and a number increased by 10.

• 4 - n + 10

• 4n - 10

• 4n + 10

• 4 / n + 10