State whether the parabola opens upwards or downwards.y = -7x2
A. Upwards
B. Downwards
Answer: B
Mathematics
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Add or subtract.15 - 3.34
A. 11.66 B. 19.34 C. 11.76 D. 18.34
Mathematics
Evaluate the integral.
A. 
B. 
C. 
D. 
Mathematics
I = 50 mA, E = 18 V, f = 1 MHz, and e leads i by 90ø. Use I as a reference. Find i and e at t = 0.25 æsec.
a. i = 50 mA, e = 0 v b. i = 0 mA, e = 18 v c. i = 0 mA, e = 0 v d. i = 0 mA, e = 18 v e. i = -50 mA, e = 0 v
Mathematics
Graph the polynomial function. f(x) = x(x - 1)(x + 3)
A. 
B. 
C. 
D. 
Mathematics