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luckybee
Questions and answers by visitors named
luckybee
Questions (57)
a computer system requires all users to log on using a 6 character password. if each character can be either a digit from 0 to 9
2 answers
597 views
a point is randomly selected within the rectangle with vertices at (2,0), (2,2), (-4,2), and (4,0). What is the probability that
1 answer
423 views
A group is studying age distribution of people living in town. The mean age is 45, the modal age is 59, the median age is 56,
3 answers
1,183 views
how many different license plates can be made consisting of three letters by four digits?
3 answers
506 views
to estimate the number of daises in a field students toss a ball into the field and mark a circular region with a radius of 15
1 answer
390 views
a weather girl predicts there is a 50% chance of rain and a 10% chance that the rain will turn into snow. What is the
2 answers
553 views
one of six radios in a crate is known to be defective. the radios are tested one at a time. if the first two radios are not
1 answer
416 views
a weather girl predicts there is a 50% chance of rain and a 10% chance that the rain will turn into snow. What is the
4 answers
853 views
A sudent is analyzing data from an experiment using a linear model. when the student entered the data into his calculator and
2 answers
594 views
the horizontal speed of an airplane is 183mph. the magnitude of the plane's velocity is 200mph. write an expression describing
1 answer
453 views
two cars leave the station at 9:00 am. the first car head due south at an avg speed of 54mph. the second car heads due west at
1 answer
332 views
in an infinite series of circles the radius of the second circle is one half the radius of the first circle and the radius of
4 answers
1,326 views
a student starts with a positive number, x^6, and take the square root three times and the cube root once. this is equivalent to
3 answers
405 views
A sudent is analyzing data from an experiment using a linear model. when the student entered the data into his calculator and
2 answers
610 views
telephone numbers for a certain city have exchanges of 584, 545, or 586. each of these exchanges is followed by four digits. how
1 answer
292 views
sample standard deviation = 3
sample mean = 68 n=30 what is the probability that one student selected at random from the sample
3 answers
1,142 views
If G is an increasing function. what can you say about G(3) - G(-1)?
4 answers
1,231 views
If F is a decreasing function what can you say about F(-2) compared to F(2)?
3 answers
674 views
recent estimates indicate that the area covered by glaciers has decreased from over 25.5 km^2 in 1850 to about 16.6 km^2 in
1 answer
366 views
V=h[( (a+b)/2)^2 + 1/3( (a-b)/2)^2]
showing all steps that it reduces to following: v=h/3(a^2 +ab+b^2)
1 answer
328 views
give the general formulas for the integer solutions of x^2 + y^2 = z^2. what is x,y, and z when me=18 and n=11
1 answer
272 views
V=h[( (a+b)/2)^2 + 1/3( (a-b)/2)^2]
showing all steps that it reduces to following: v=h/3(a^2 +ab+b^2)
1 answer
281 views
give the general formulas for the integer solutions of x^2 + y^2 = z^2. what is x,y, and z when m=18 and n=11
1 answer
329 views
f(x)=6
fx)=20+2x^2 all under a square root symbol 6=20+2(36) 6=the square root of 92 will someone help me
1 answer
327 views
please check my homework
given P(7,2) and the line y + 3x=7 find the equation for the line parallel line: y+3x+7 y=-3(x-7) +7
2 answers
491 views
f(3)=-3/8 and (f-2)=-12
MY SOLUTION F(-2)=ab^-2 = -12 F( 3)=ab^ 3 = -3/8 b^5 = 12 * 3/8 = 32 b=2 12 = a(2)^2 12 = 4a a =3
1 answer
237 views
PD= 600(0.978)^t
PD is decreasing at 2.2% per year. How did they get 2.2%
1 answer
326 views
the horizontal speed of an airplane is 173 miles per hour. the magnitude of the planes velocity is 200 miles per hour. what
1 answer
401 views
a quadractic function y=3x^2-6x+5 is expressed in the form (y-k)= A(x-h)^2, where the poing (h,k) is the vertex of the parobla.
1 answer
432 views
a circular chimney pipe with an 8-inch diameter passes vertically from a heater through a metal plate in the roof. the plate has
1 answer
446 views
marcus rides his bicycle of 3 1/8 hour per day. what is the number of seconds that marcus spends riding his bike each day?
My
2 answers
485 views
X^2 + Y^2 =70
Y = 2X + 5 MY ANSWER: -5.6, 1.6 is this correct?
1 answer
283 views
A manufacturer wants to package samples of a product in a box with a square base. the package is to have a volume of 100 cubic
2 answers
1,082 views
Dave started his coin collection with 25 coins. the first wee he added 2 coins, the next week he added 4 coins, and the third
2 answers
567 views
a farmer has 600 meters of fencing and plans to use it to build two adjacent rectangular pens as show above. the farmer would
2 answers
646 views
what is the graph of 6X^2+6X-12>0?
My solution is: an open circle over -2 going to infinite an open circle over +1 going to
1 answer
368 views
a student rolls three standard six-sided dice. what is the probability that the sum of the numbers that come up will be 18? is
3 answers
563 views
a packaging company manufactures a cardboard box with a volume of 864 cubic inches. the length of the box is 24 inches, and the
3 answers
627 views
1+3=4=2^2
1+3+5=9=3^2 1+3+5+7=16=4^2 is this an example of inductive or deductive reasoning. I believe it is deductive because
2 answers
638 views
a student is using a geometry program to investigate the midsegments of a triangle. the student uses the program to draw
2 answers
584 views
a tank used to operate equipment can be filled with air in 3 hours. when the outlet valve is open, the same tank can be emptied
1 answer
479 views
using a right triangle with one angle 24 degrees and the opposite side being 57 feet, write an expression to fine the
1 answer
392 views
A high-protein diet contains 71g of carbohydrate, 150 g of protein, and 5.0 g of fat. How many kilocalories does this diet
2 answers
500 views
Calculate the number of SO_2 molecules in 9.19 moles of SO_2
1 answer
337 views
a packaging company manufactures a cardboard box with a volume of 864 cubic inches. the length of the box is 24 inches, and the
3 answers
1,645 views
conjecture 17 if A, B, and C are sets, then (A\B)U C = A\(BUC)
1 answer
280 views
solve
X^2 + Y^2 =70 Y= 2X + 5
1 answer
330 views
Is this set closed under multiplication
{-1, 0, 1}
2 answers
487 views
calculating the range of
0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16 Is the range 16-0 =16
1 answer
379 views
When you have 3 separate circles and the radius of each of those circles is 10 do i calculate like this? 2(10)+2(10)+2(10)=60 cm
4 answers
1,047 views
Sandra spent one-fifth of her money and loaned one-third of the remainder to her brother. She had $24 left. How much did she
5 answers
455 views
a certain two-digit number is 6 less than the sum of its tens digit and 7 times its units digit. if the digits are reversed the
2 answers
531 views
Me and Bill said casey can do the job for you in 10 days but give me alex instead of bill and we can get it done in 9 days. i
2 answers
963 views
an express train leaves new york at 3:00 pm and rreaches boston at 6:00 pm a slow train leaves boston at 1:30pm and arrives in
3 answers
544 views
how do you solve this equation
d/3t + d/4.5(t+1.5) = d
1 answer
403 views
if a teacher wanted to demonstrate mass in the classroom, which of the following objects should she use? a ruler or an eraser
1 answer
337 views
complete the square
2x^2-4x-1=0
2 answers
453 views
