Use a calculator to find the approximate value of the expression rounded to two decimal places.cos 81°
A. 0.27
B. 0.78
C. 0.89
D. 0.16
Answer: D
Mathematics
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Factor completely. If the polynomial is prime, state this.10pq4 - 10pr4
A. (10pq2 + 10pr2)(10pq2 - 10pr2) B. (10pq2 + pr2)(pq2 - pr2) C. 10p(q2 + r2)(q2 - r2) D. 10p(q2 + r2)(q + r)(q - r)
Mathematics
Given the graph of f, find any values of x at which f ' is not defined.
A. x = 2 B. x = 1, 3 C. x = 1, 2, 3 D. Defined for all values of x
Mathematics
Determine whether the activity can be used to illustrate the given property.Making a pot of coffee, brushing your teeth, and taking a shower.Does the associative property hold?
A. Yes B. No
Mathematics
Multiply or divide as indicated.
? 
A. 
B. 
C. 
D. 
Mathematics