Tutors Answer Your Questions about Linear Algebra (FREE)
Question 45541: In most businesses, increasing prices of their product can have a negative effect on the number of customers of the business. A bus company in a small town has an average number of riders of 800 per day. The bus company charges $2.25 for a ride. They conducted a survey of their customers and found that they will lose approximately 40 customers perday for each $.25 increase in fare.
Given the description above, graph the function, identify the graph of the function (line, parabola, hyperbola, or exponential), explain your choice, and give the domain and range as shown in the graph you have drawn, and also the domain and range of the entire function excluding unrealistic values.
Click here to see answer by Nate(3500)  |
Question 45785: it is approximately 480 miles from Los Angeles california to San Francisco, California. Allowing for various road conditions, a driver can average approximately 60 miles per hour.
a)Write a linear function that expresses the distance traveled ,d, as a function of time,t
Answer:
Click here to see answer by checkley71(8403) |
Question 45866: the element europium (EU) exists in nature as two isotopes: (151 EU)with a mass of 150.9196 amu & (153 EU) with a mass of 152.9209 amu. The average mass of EU is 151.96 How do you calculate the relative abundance of the two EU isotopes? X% times 150.9196 (plus) Y% times 152.9209 equals = 151.96. what are the X and Y percentages? And what is the formula to identify the unknowns X and Y?
Click here to see answer by stanbon(57407) |
Question 46996: 1. When 3+4i / 2+i is expressed in the for a+bi, what is the value of a?
I don't understand why the answer is 2.
2. (i+1)(3-i)+(2i-1)
I tried multiplying the first two sets and adding the like terms with the third set but I'm not coming up with the correct answer.
Click here to see answer by mathchemprofessor(65) |
Question 47158: A right triangle is a triangle with one angle measuring 90°. In a right triangle, the sides are related by Pythagorean Theorem,c^2=a^2+b^2 , where c is the hypotenuse (the side opposite the 90° angle). Find the hypotenuse when the other 2 sides’ measurements are 6 feet and 8 feet.
Click here to see answer by adamchapman(301) |
Question 47158: A right triangle is a triangle with one angle measuring 90°. In a right triangle, the sides are related by Pythagorean Theorem,c^2=a^2+b^2 , where c is the hypotenuse (the side opposite the 90° angle). Find the hypotenuse when the other 2 sides’ measurements are 6 feet and 8 feet.
Click here to see answer by Nate(3500) |
Question 49102: consitstent and inconsistnt systems
1.find the slope and y intercept of each line
give the number of solutions
x+y=5
y=2x+2
slope 1=0 and b 1=5
slope 2=2 and b 2=2
is that correct or please help i know im doing something wrong can the slope be a -1 for the first or would -x be 0
Click here to see answer by checkley71(8403) |
Question 50335: I can not figure out how to exactly put this problem into an Linear equation, basically because i don't know where the numbers fit into the equation. So here is the problem.
The number of married couples in the United States in 1995 was 53.9 million. Im 2000, the number of married couples grew to 55.3 million. Write a linear equation that gives the number of married couples in terms of the year. Let x represent the year with x=5 corresponding to 1995.
Click here to see answer by stanbon(57407) |
Question 50335: I can not figure out how to exactly put this problem into an Linear equation, basically because i don't know where the numbers fit into the equation. So here is the problem.
The number of married couples in the United States in 1995 was 53.9 million. Im 2000, the number of married couples grew to 55.3 million. Write a linear equation that gives the number of married couples in terms of the year. Let x represent the year with x=5 corresponding to 1995.
Click here to see answer by tutorcecilia(2152)  |
|
Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510
|
