1 Select the correct answer. The user manual for Layla's phone notes that the device can be damaged when operated at temperatures below -20°C and above 45°C. Layla wants to know what these ranges are in degrees Fahrenheit and writes these inequalities to rewrite the relationship where Fis degrees Fahrenheit (F - 32) < -20 O F - 32) > 45 Which statement best describes the temperature ranges Layla should avoid while using her phone? O A. Layla should avoid using her phone in temperatures below -4°F and above 113°F.
OB. Layla should avoid using her phone in temperatures above -4°F and below 113°F.
O c. Layla should avoid using her phone in temperatures below 21°F and above 57°F.
OD. Layla should avoid using her phone in temperatures above 21°F and below 57°F.

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

Write the contrapositive of the conditional statement. determine whether the contrapositive is true or false. if it is false, find a counterexample. a converse statement is formed by exchanging the hypothesis and conclusion of the conditional. a) a non-converse statement is not formed by exchanging the hypothesis and conclusion of the conditional. true b) a statement not formed by exchanging the hypothesis and conclusion of the conditional is a converse statement. false; an inverse statement is not formed by exchanging the hypothesis and conclusion of the conditional. c) a non-converse statement is formed by exchanging the hypothesis and conclusion of the conditional. false; an inverse statement is formed by negating both the hypothesis and conclusion of the conditional. d) a statement not formed by exchanging the hypothesis and conclusion of the conditional is not a converse statement. true