Solve and graph. Write the result in interval notation.a + 5 > -7
A. [-12, ?)
B. (-?, -12]
C. (-12, ?)
D. (-?, -12)
Answer: C
Mathematics
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Solve the problem.The half-life of a certain radioactive substance is 5 years. Suppose that at time 
there are 28 g of the substance. Then after t years, the number of grams of the substance remaining will be N(t) = 28
t/10How many grams of the substance will remain after 45 years?Round to the nearest hundredth of a gram.
A. 1.24 g B. 0.15 g C. 0.62 g D. 0.31 g
Mathematics
Find the products AB and BA to determine whether B is the multiplicative inverse of A.A = 
,B = 
A. B ? A-1 B. B = A-1
Mathematics
Perform the indicated operation.(-3m2 - 2m - 2) - (3m2 + 2m + 9)
A. 7 B. -6m2 - 4m - 11 C. -6m2 + 7 D. -6m2 + 4m + 11
Mathematics
Graph the function using translations.
a. 
b. 
c. 
d. 
Mathematics