Use counting to determine the whole number that corresponds to the cardinality of the set.A = {900, 901, 902, . . . , 9000}
A. n(A) = 8100
B. n(A) = 4
C. n(A) = 8101
D. n(A) = 9000
Answer: C
Mathematics
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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
Write a formula for a linear function f whose graph satisfies the conditions.Slope: 
; y-intercept: -7
A. f(x) = 
x - 7
B. f(x) = - 
x + 7
C. f(x) = - 
x - 7
D. f(x) = 
x + 7
Mathematics
Provide an appropriate response.Evaluate 13-1.
A. -13
B. 
C. 1
D. -1
Mathematics
Verify the identity.tan ? ? csc ? = sec ?
What will be an ideal response?
Mathematics