Mathematics, 13.12.2019 17:31 BarcaOsama
Sarah is driving. her distance in km from tempe after t hours of driving is given by: x = d(t) = 13 + 57t
a. determine a formula in terms of x for: t = d^-1(x)
b. compute d^-1(70)
c. in the expression d^-1(x) :
what quantity (distance or time) does the x represent?
what quantity (distance or time) does the entire d^-1(x) represent?
d. which of the following statements best describes d^-1(x)?
a) the ratio of sarah's distance from tempe (in km) to x hours of driving.
b) the reciprocal of sarah's distance from tempe (in km) after x hours of driving.
c) the number of hours of driving needed for sarah to be x km from tempe.
d) sarah's distance in km from tempe after x hours of driving.
Answers: 2
Mathematics, 21.06.2019 16:30, stefancvorovic1
The equation of a circle is (x - 3)2 + (y - 7)2 = 25. determine the length of the radius. 4 25 12.5 5 write the standard equation of the circle with center (2, 3) and a diameter of 12. (x - 2)2 + (y - 3)2 = 36 (x + 2)2 + (y + 3)2 = 12 (x - 2)2 + (y - 3)2 = 6 (x - 3)2 + (y - 2)2 = 36 the equation of a circle is (x + 3)2 + (y + 7)2 = 25. where is (3, 4) located in relation to the circle? on the circle in the interior of the circle in the exterior of the circle at the center of the circle
Answers: 1
Mathematics, 22.06.2019 00:00, christinavelez26
(50 ) mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.
Answers: 1
Sarah is driving. her distance in km from tempe after t hours of driving is given by: x = d(t) = 13...
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