If x is the principal square root of 7, what must be true?
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o
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a. x2 = 7, and x is negative
b. x= 72, and x is negative
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c. x2 = 7, and x is positive
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d. x = 72, and xis positive

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

Find the multiplicative inverse of 8-12i

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.