If n(A) = 15, n(B) = 25, and n(A?B) = 35 find n(A?B).
a. 4
c. 7
d. 8
b. 5
Mathematics
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Determine whether the expression is a polynomial. If it is a polynomial, give its degree.7x5 - 
A. not a polynomial B. polynomial; degree 1 C. polynomial; degree 5 D. polynomial; degree -1
Mathematics
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(3 + 2i)(3 - 7i)
A. 23 - 15i B. -5 + 27i C. 23 + 15i D. -14i2 - 15i + 9
Mathematics
Explain whether the given equation defines an exponential function. Give the base for each exponential function.y = xx
A. No, the exponent is a variable. B. Yes, the base is x. C. Yes. the base is 1. D. No, the base is not a constant.
Mathematics
Answer the question.What does the digit 1 mean in the number 145,577,056,305?
A. hundred-billions B. hundred-millions C. ten-millions D. ten-billions
Mathematics