Find the value of the expression.

A. 6
B. 0.006
C. 0.06
D. 0.6

Answer: C

Mathematics

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Solve the quadratic equation by completing the square.10d2 + 19d + 6 = 0

A. - , -  
B. , 
C. - , -  
D. ,  

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Mathematics

Solve the problem.An electronics company kept comparative statistics on two products, A and B. For the years 2005 to 2013, the total number of Product A ever sold (in thousands) is given by the equation , where x is the number of years since 2005. For that same period, the total number of Product B ever sold (in thousands) is given by the equation B = -30x + 434, where x is the number of years since 2005. Choose the statement that most accurately describes the solution of the system of equations.

A. At about 1.8 years (to the nearest tenth) from 2005, both products had sold the same amount. B. Product B sold 1.8 times as many as Product A. C. At some point between 2005 and 2013, both products had sold 1800 each. D. When 375,000 of Product A had been sold, Product B had sold 1.8 times as many.

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Mathematics

Suppose that people's heights (in centimeters) are normally distributed, with a mean of 170 and a standard deviation of 5. We find the heights of 55 people. How many would you expect to be between 170 and 175 cm?

Standard Normal Distribution; z-scores  z      0.00      0.01     0.02      0.03     0.04      0.05     0.06      0.07     0.08      0.090.0    0.0000  0.0040  0.0080  0.0120  0.0160  0.0199  0.0239  0.0279  0.0319  0.03590.1    0.0398  0.0438  0.0478  0.0517  0.0557  0.0596  0.0636  0.0675  0.0714  0.07530.2    0.0793  0.0832  0.0871  0.0910  0.0948  0.0987  0.1026  0.1064  0.1103  0.11410.3    0.1179  0.1217  0.1255  0.1293  0.1331  0.1368  0.1406  0.1443  0.1480  0.15170.4    0.1554  0.1591  0.1628  0.1664  0.1700  0.1736  0.1772  0.1808  0.1844  0.18790.5    0.1915  0.1950  0.1985  0.2019  0.2054  0.2088  0.2123  0.2157  0.2190  0.22240.6    0.2257  0.2291  0.2324  0.2357  0.2389  0.2422  0.2454  0.2486  0.2517  0.25490.7    0.2580  0.2611  0.2642  0.2673  0.2704  0.2734  0.2764  0.2794  0.2823  0.28520.8    0.2881  0.2910  0.2939  0.2967  0.2995  0.3023  0.3051  0.3078  0.3106  0.31330.9    0.3159  0.3186  0.3212  0.3238  0.3264  0.3289  0.3315  0.3340  0.3365  0.33891.0    0.3413  0.3438  0.3461  0.3485  0.3508  0.3531  0.3554  0.3577  0.3599  0.36211.1    0.3643  0.3665  0.3686  0.3708  0.3729  0.3749  0.3770  0.3790  0.3810  0.38301.2    0.3849  0.3869  0.3888  0.3907  0.3925  0.3944  0.3962  0.3980  0.3997  0.40151.3    0.4032  0.4049  0.4066  0.4082  0.4099  0.4115  0.4131  0.4147  0.4162  0.41771.4    0.4192  0.4207  0.4222  0.4236  0.4251  0.4265  0.4279  0.4292  0.4306  0.43191.5    0.4332  0.4345  0.4357  0.4370  0.4382  0.4394  0.4406  0.4418  0.4429  0.44411.6    0.4452  0.4463  0.4474  0.4484  0.4495  0.4505  0.4515  0.4525  0.4535  0.45451.7    0.4554  0.4564  0.4573  0.4582  0.4591  0.4599  0.4608  0.4616  0.4625  0.46331.8    0.4641  0.4649  0.4656  0.4664  0.4671  0.4678  0.4686  0.4692  0.4699  0.47061.9    0.4713  0.4719  0.4726  0.4732  0.4738  0.4744  0.4750  0.4756  0.4761  0.47672.0    0.4772  0.4778  0.4783  0.4788  0.4793  0.4798  0.4803  0.4808  0.4812  0.48173.0    0.4987  0.4987  0.4987  0.4988  0.4988  0.4989  0.4989  0.4989  0.4990  0.4990? A. 34 B. 19 C. 17 D. 25 E. 23

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Mathematics

Find the slope and y-intercept of the line.4x - 5y = 7

A. slope = ; y-intercept = 
B. slope = 4; y-intercept = 7
C. slope = ; y-intercept = - 
D. slope = ; y-intercept = 

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Mathematics