In the figure, 
bisects 
of 
. If 
, 
, and 
, find WZ.
What will be an ideal response?
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Provide an appropriate response.In the circuit represented by the diagram, find the total current It if Ir = 76 A. All units are in amps. 
A. 125.4 amps B. 57.9 amps C. 95.5 amps D. 46.1 amps
Use front end rounding to estimate the answer. Then use your estimate to select the correct exact answer.9.6 + 0.002
A. 9.602 B. 9.612 C. 9.502
Express the number in scientific notation.253,000,000
A. 2.53 × 108 B. 2.53 × 10-8 C. 2.53 × 10-7 D. 2.53 × 107
First, use front-end rounding to round each number and estimate the answer. Then, find the exact answer.Mr. Buttimer took a plane trip for a total of 5.58 hours. He watched an in-flight movie for 1.5 hours. From the airport, he took a cab ride for 0.72 hour to the train station. Next, he took the train home for 1.87 hours. What was the total time spent traveling?
A. Estimate: 11 hours; exact: 8.17 hours B. Estimate: 11 hours; exact: 9.67 hours C. Estimate: 12 hours; exact: 9.67 hours D. Estimate: 9 hours; exact: 8.17 hours