Solve the problem.Matt is going to invest no more than $4000 in two accounts earning 2% and 4% simple interest. He would like the accounts to earn at least $80 after one year. He wants to invest more than $1000 in the account earning 4% simple interest. Write a system of inequalities to describe this situation and solve by graphing.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Provide an appropriate response.Derive the identity sec-1(-x) = ? - sec-1 x by combining the following two equations:cos-1(-x) = ? - cos-1 xsec-1 x = cos-1(1/x)
What will be an ideal response?
Mathematics
Find the difference.-7 - 12
A. -19 B. 19 C. -5 D. 5
Mathematics
Write the number in decimal notation.3.82 × 10-4
A. 38,200 B. 0.00382 C. 0.000382 D. 0.0000382
Mathematics
Solve the problem.The following chart shows a book publisher's monthly sales by book category for the first quarter of the year. Complete the totals by adding horizontally and vertically. 
A.
B.
C.
D.
Mathematics