At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:Greater than 13.4 seconds
A. 2.5%
B. 84%
C. 97.5%
D. 98%
Answer: C
Mathematics
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Find the equation of the line of best fit from the data in the table. Round the slope and the y-intercept to the nearest hundredth.
A. y = 0.43x + 4.98 B. y = 0.73x + 4.98 C. y = 0.53x + 4.88 D. y = 0.63x + 4.88
Mathematics
Compute the square root.
A. 
B. 20,736
C. 144
D. 12
Mathematics
Factor completely. If the polynomial cannot be factored, say it is prime.8x2 - 28x - 16
A. 4(2x - 1)(x + 4) B. (8x - 4)(x + 4) C. 4(2x + 1)(x - 4) D. prime
Mathematics
Establish the identity.
= 
What will be an ideal response?
Mathematics