Give the answer to the question. Let k be a natural number.
?
Is ( - 5 ) 2k + 1 positive or negative?
?
A. positive
B. undefinable number
C. negative
Answer: C
Mathematics
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Calculate.-4 - |(-18) + (-13)|
A. 27 B. -27 C. -35 D. 35
Mathematics
Solve.How long will it take for $7000 to grow to $25,200 at an interest rate of 10% if the interest is compounded quarterly? Round the number of years to the nearest hundredth.
A. 13.44 yr B. 36.45 yr C. 12.97 yr D. 51.88 yr
Mathematics
Simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive.x7/8 ? x1/8
A. 
B. x7/64
C. x
D. x7/8
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. - 
D. - 
Mathematics