Tutors Answer Your Questions about Exponents-negative-and-fractional (FREE)
Question 948516: 3) The Brown Office Rental Company has purchased a new computer for the secretary to use for customer requests. She can type 70 words per minute, on the average. lf she types 4 to 5 hours per day, she will average how many words, w, per day?
F 16,800 ≤ w ≤ 60,000
G 2800 ≤ w ≤ 3500
H 16,800 ≤ w ≤ 21,000
J 4200 ≤ w ≤ 12,000
K 4200 ≤ w ≤ 21,000
Click here to see answer by macston(5194)   |
Question 948867: 4) An airplane at 20,000 feet begins to descend at 22 feet per second. Let x represent the number of seconds and y represent the altitude in feet of the plane. The plane descends for 2.5 minutes and then climbs for 5 minutes at 15 feet per second. Which of the following is true concerning the slopes made by the plane's flight?
A The descent at 22 feet per second is steeper than the climb at 15 feet per second because the plane descends at a faster rate than that at which it climbs.
B. The descent at 22 feet per second is less than the climb at 15 feet per second because the slope representing the descent is negative.
C. The climb at 15 feet persecond is steeper than thedescent at 22 feet per second because the climb isrepresented by a positiveslope.
D The 5-minute climb is steeper because 5 minutes is longer than the descent time of 2.5 minutes.
Click here to see answer by macston(5194) |
Question 948908: The population of New Haven was 148,220 in 2005. Since then the population has been decreasing at an annual rate of 2.9%. If this rate of decline continues, what will the population be in the year 2015?
Y = a*bx where a is the starting amount; b is the decay rate (decreasing subtract from 1) ; x is time
Click here to see answer by macston(5194) |
Question 948907: The population of New Haven was 148,220 in 2005. Since then the population has been decreasing at an annual rate of 2.9%. If this rate of decline continues, what will the population be in the year 2015?
Y = a*bx where a is the starting amount; b is the decay rate (decreasing subtract from 1) ; x is time
Click here to see answer by macston(5194) |
Question 948924: At Computer Central, the cost of renting a computer is $45 plus $35 per day. The total cost can be represented by the equation y = 45 + 35x, where x is the number of days for which the computer has been rented and y is the total cost of renting the computer. What is the y-intercept of this equation?
Click here to see answer by Zucchini(70) |
Question 948924: At Computer Central, the cost of renting a computer is $45 plus $35 per day. The total cost can be represented by the equation y = 45 + 35x, where x is the number of days for which the computer has been rented and y is the total cost of renting the computer. What is the y-intercept of this equation?
Click here to see answer by macston(5194) |
Question 948873: The change in the stock price of Company B is a function of the change in the stock price of its parent company, Company A, as shown in the table. In this function, x represents the change in price of 1 share of Company A stock and f(x) represents the change in price of 1 share of Company B stock. Write the ordered pair that represents the x-intercept of this function. THE TABLE IS BELOW
x 3 6 9 12
________
f(x) 1 3 5 7
Click here to see answer by Fombitz(32388)  |
Question 948872: The change in the stock price of Company B is a function of the change in the stock price of its parent company, Company A, as shown in the table. In this function, x represents the change in price of 1 share of Company A stock and f(x) represents the change in price of 1 share of Company B stock. Write the ordered pair that represents the x-intercept of this function. THE TABLE IS BELOW
x 3 6 9 12
________
f(x) 1 3 5 7
Click here to see answer by Fombitz(32388) |
Question 952933: I am having a problem simplifying using the Rules of Exponents because of the negative exponent. I know I have to find the reciprocal but I get lost there.
this is my problem:
27^-2/3 / 27^-1/3
I am not sure if I have to cube it first which I believe it will give me....cube root of 27 and then square it: 27^2/3 = (27^1/3)^2 = 3^2 = 9
I appreciate any help....
Click here to see answer by MathLover1(20850)  |
Question 954516: If 8^n=27, what is 4^n?
I have worked out that 8^n/4^n=2^n, so the answer is 27/2^n, but the answers provided are: 3, 4, 9, 13.5, there is no such n. I have calculated on my calculator that n is 1.584, but cannot see how to do that without a calculator.
Thanks
Paul
Click here to see answer by Alan3354(69443)  |
Question 959265: Write the number 1/27 as a power of 3.
Enter the value of the index as an integer in the box below
i thought it would be:-
1/3^3 = 3^-3
but it say to put as an integer can you help please?
when i try to answer in the dialog box "its not an integer" or "3^(-3)" i get a error message "You must enter a valid number. Do not include a unit in your response."
Its a online answer
Click here to see answer by jim_thompson5910(35256) |
Question 959265: Write the number 1/27 as a power of 3.
Enter the value of the index as an integer in the box below
i thought it would be:-
1/3^3 = 3^-3
but it say to put as an integer can you help please?
when i try to answer in the dialog box "its not an integer" or "3^(-3)" i get a error message "You must enter a valid number. Do not include a unit in your response."
Its a online answer
Click here to see answer by Singh48(1) |
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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
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