Find the exact value of the expression if ? = 30°. Do not use a calculator.f(?) = sin ?Find [f(?)]2.
A. 
B. 1
C. 
D. 
Answer: C
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Determine if the graph represents a function.
A. Yes B. No
Write the following as a sum using powers of 10 to show place value.0.300398
A. 0 ? 10-1 + 3 ? 10-2 + 0 ? 10-3 + 0 ? 10-4 + 3 ? 10-5 + 9 ? 10-6 + 8 ? 10-7 B. 0 ? 101 + 3 ? 100 + 0 ? 10-1 + 0 ? 10-2 + 3 ? 10-3 + 9 ? 10-4 + 8 ? 10-5 C. 0 ? 100 + 3 ? 101 + 0 ? 102 + 0 ? 103 + 3 ? 104 + 9 ? 105 + 8 ? 106 D. 0 ? 100 + 3 ? 10-1 + 0 ? 10-2 + 0 ? 10-3 + 3 ? 10-4 + 9 ? 10-5 + 8 ? 10-6
Write an inequality to represent the situation described, and draw the corresponding graph.The sum of two times the x-coordinate and three times the y-coordinate is less than or equal to 9.
A. 2x + 3y ? 9
B. 2x + 3y ? 9
C. 2x + 3y ? 9
D. 2x + 3y ? 9
A car that was being pursued by the police was at Jones Beach at exactly src="https://sciemce.com/media/3/ppg__cognero__1.3_Linear_Functions_and_Models__media__8144baf6-d969-45aa-abe4-b9a940caea69.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_d61113b97ea445f192256c5b1" /> p.m.,where it was overtaken by the police. How fast, in miles per minute, was the car traveling? (Round your answer to the nearest tenth.)
?
A. 1.0 miles/min.
B. 1.1 miles/min.
C. 1.2 miles/min.
D. 1.9 miles/min.
E. 1.8 miles/min.
p.m. 
, and passed Oak Beach (13 miles from Jones Beach) at exactly