Find the distance d(P1, P2) between the points P1 and P2.P1 = (-1, -7); P2 = (1, -3)
A. 12
B. 2
C. 2
D. 12
Answer: C
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Write the English phrase as an algebraic expression. Let x represent the number. Simplify the expression, if possible.8 times a number increased by 19
A. 8 + 19x B. 8x - 19 C. 8x + 19 D. 8x ? 19
Determine whether the expression is a polynomial. If the polynomial is a monomial, binomial, or trinomial, so state. If the expression is not a polynomial, indicate why not.5x3 + 4x2 - 5x-2 + 16
A. Monomial B. Trinomial C. Polynomial D. Not polynomial; The -2 exponent is not an integer that is greater than or equal to 0.
Use a calculator to help solve the equation. Round approximate answers to three places.(1.64 × 104) x + 5.4 × 103 = 8.7 × 102
A. {0.498} B. {0.382} C. {-0.276} D. {-0.498}
Simplify.(12a2b - 12ab + 6) - (2a2b + 4ab - 6)
A. 14a2b - 16ab + 12 B. 10a2b + 16ab - 12 C. 10a2b + 16ab + 12 D. 10a2b - 16ab + 12