Verify that the equation is an identity.
Mathematics
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Solve.A rectangular sign is being designed so that the length of its base, in feet, is 8 feet less than 4 times the height, h. Express the area of the sign as a function of h.
A. A(h) = -8h + 4h2 B. A(h) = -8h + h2 C. A(h) = -8h2 + 2h D. A(h) = 8h - 2h2
Mathematics
Solve the inequality numerically. Approximate endpoints to the nearest tenth.
x - 7.3 < 0
A. x > -14.7 B. x > 15.1 C. x < 15.1 D. x < -14.7
Mathematics
Factor out the GCF from the polynomial.s(t2 - 12) + 5(t2 - 12)
A. (t2 - 12)(s - 5) B. 5s(t2 - 12) C. (t2 - 12)(s + 5) D. (st2 - 12s) + (5t2 - 60)
Mathematics
Solve using the quadratic formula. If the equation has no real solutions, write "no real-number solutions."x2 - x = -56
A. -7, 8 B. no real-number solutions C. -7, -8 D. 7, 8
Mathematics