Complete the work to simplify the expression (–2d5)4.   1. express 4 factors of –2d5:      (–2d5)(–2d5)(–2d5)(–2d5) 2. expand the expression:        –2 ∙ –2 ∙ –2 ∙ –2 ∙ d5∙ d5∙ d5∙ d5 3. simplify to the exponential form:    (–2)4∙ (d5)4 4. evaluate the base 2 power:      16 ∙ (d5)4 5. apply the power of a power:      16dx what is the value of x in the simplified power?

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit

Given a normal distribution with µ=20 and σ = 4, what is the probability that x> 24 x< 24 x< 24 or x> 24