Determine whether the given function is one-to-one. If so, find a formula for the inverse.f(x) = 5x3 - 7
A. Not a one-to-one function
B. f-1(x) = 
C. f-1(x) = 
D. f-1(x) = 
+ 7
Answer: B
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Provide an appropriate response.Express in scientific notation: 7,215
A. 0.7215 × 104 B. 7.215 × 103 C. 7.215 × 104 D. 72.15 × 102
Find Y and é in the parallel circuit below if BC = 400 æS and G = 250 æS.
a. é = 60ø, Y = 500 æS
b. é = 30ø, Y = 289 æS
c. é = 60ø, Y = 800 æS
d. é = 30ø, Y = 800 æS
e. é = 58ø, Y = 472 æS
Assume triangle ABC has standard labeling. Determine if AAS, ASA, SSA, SAS, or SSS is given, and decide if the law of sines or the law of cosines should be used to solve the triangle.?, b, and c
A. SSA; law of cosines B. SSA; law of sines C. AAS; law of sines D. ASA; law of sines
Multiply. Write the result in the form a + bi.(6 - 9i)(2 + 4i)
A. 48 - 6i B. 48 + 6i C. -24 - 42i D. -36i2 + 6i + 12