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Question 850216: A train leaves Arkansas, and travels north at 80 kilometers per hour. Another train leaves at the same time and travels south at 55 kilometers per hour. How long will it take before they are 270 kilometers apart?
Click here to see answer by stanbon(75887)

Question 850276: Determine the dimensions of a rectangle of area 60 in^2 that is inscribed in a circle of radius 6.5 inch.
Click here to see answer by josgarithmetic(39613)

Question 850431:
What would you get if you divide a half of a half of a half by a half of a fourth of a half.
Click here to see answer by checkley79(3341)

Question 850509: If m is an odd integer, what is the second consecutive even integer preceding m?
a) m-4
b) m-3
c) m-2
d) m-1
e) m+1
Click here to see answer by richwmiller(17219)

Question 850591: 40 boys and 28 girls stand in a circle, Hand in hand, all facing inwards. Exactly 18 boys give their right hand to a girl. How many boys give their left hand to a girl.
Click here to see answer by richwmiller(17219)

Question 850644: Indirect measurement: a building is 22ft high and casts a 40ft shadow. Mr.berg casts a 10ft shadow. The triangle formed by the building and it's shadow is similar to the triangle formed by Mr.berg and his shadow. How tall is Mr.berg?

Click here to see answer by Cromlix(4381)

Question 850799:
Convert the following expressions to decimal form.
0.6 � 10�6 =
Click here to see answer by ewatrrr(24785)

Question 850907: Tom has a piece of railing 90 inches long. How long is the railing in yards and inches?
Click here to see answer by rvfer(117)

Question 851276: If I had a 91% in a a class and then i got a 72% on my last test, what is my new class grade?
Click here to see answer by richard1234(7193)

Question 851343: 5x-16=14-5x

Click here to see answer by rvfer(117)

Question 851578: the cost of a pencil is rs 3.find the cost of 15

Click here to see answer by soumilaggarwal2001@gmail.com(3)

Question 852111: how much money will be in an account at the end of 9 years if $4,000 is deposited at 3% interest compunded 2 times per year? Assume no deposits or withdrawals are made.
Click here to see answer by ewatrrr(24785)

Question 852205: Find the rectangular coordinates of the point with the given polar coordinates. (3, 150�)
Click here to see answer by Fombitz(32388)

Question 852566: I have a 84.5 as my average now. A semester project is 150 points, if I get a 100 on it, what will be my average?
Click here to see answer by richard1234(7193)

Question 852569: My friend has a 87.6 in her class. If she pasts a quiz worth 30 points, what will be her average?
Click here to see answer by richard1234(7193)

Question 852630: What is the decimal fraction 0.93 3/4 in a common fraction
Click here to see answer by josgarithmetic(39613)

Question 852425: What is the total and lateral surface area of a material whose volume is 54 cubic in. Assume that the length and width are of the same measurement and that the height is twice the length
Click here to see answer by ankor@dixie-net.com(22740)

Question 852819: Express the number in rectangular form.
3(cosπ/3+isinπ/3)
Click here to see answer by Edwin McCravy(20054)

Question 852852: Y=3x-7
Y-3x=5
What can you conclude about the system of equations?
Click here to see answer by stanbon(75887)

Question 853529: If I have an 82.9 average in math and have one last test left, what is the minimum grade I can get on the test in order to get an 83 average or above?
Click here to see answer by richwmiller(17219)

Question 853602: Write the equation of the line that is parallel to the line whose equation is y = �4 and that passes through the point (1, 5).
Click here to see answer by Alan3354(69443)

Question 853802: 1. 5 hrs ago, a man started digging soil in order to make a cylindrical fit. if the soil per second, how deep he digged if it is now equal to the pit's radius??

Click here to see answer by richwmiller(17219)

Question 853826: A ladder should reach a point 25 ft. above the ground. If the slope is 2, how far from the building should its base be?
Click here to see answer by Alan3354(69443)

Question 853852: a collection of halloween candy contains a total of 9 peanut butter cars and chocolate bars with peanuts. The grams of fat in these candy bars exceeds the daily maximum desirable fat intake of 60 grams by 78.9 grams. How many bars of each kind of candy are contained in the halloween collection?

Click here to see answer by richwmiller(17219)

Question 853873: Where is the function, f(x)=(x^3)/(x^2 - 36) concave up?
Click here to see answer by ewatrrr(24785)

Question 853433: Evaluate -3x3 - 4x for x = -1.
Click here to see answer by Vladdroid(91)

Question 854168: arnold who is 175 cm. tall casts a shadow 250 cm. long. what is the angle of elevation of the sun?
Click here to see answer by aditya2117(32)

Question 854406: what is the answer to 4x^2-4x+1
Click here to see answer by Alan3354(69443)

Question 854694: A:B = 7:5, B:C = 3:4. Now If C is 30, what is A?
Click here to see answer by Fombitz(32388)

Question 854722: Here is a series written in summation notation:
100
E 2i
i=1
Which of the following sums is an expansion of this series?

Click here to see answer by richard1234(7193)

Question 854758: What multiplies to give you -60 and adds to give you -1
Click here to see answer by Fombitz(32388)

Question 854758: What multiplies to give you -60 and adds to give you -1
Click here to see answer by Seutip(231)

Question 854902: PLEASE HELP ME!
a cable hangs between two poles that are 24 feet apart. The height of the cable (in feet) is given by the equation.

h(x)=12(e^0.02x + e^-0.02x)
where -12< x<12 and x is the horizontal position (in feet).
Question: Find the height of the cable at either pole.
PLEASE SHOW ME ON WHAT DID YOU PUT ON YOUR CALCULATOR! SO I CAN UNDERSTAND IT.
THANKS!
Click here to see answer by Fombitz(32388)

Question 855610: You draw a map with a scale of 10 miles to 0.5 inch. How far should you space two cities that are 60 miles apart?
Click here to see answer by jim_thompson5910(35256)

Question 855677: A 10Ω and a 20Ω resistances are connected in parallel, another resistance of 5Ω is connected in series with the two. If the supply voltage is 48V, what is the current through the 10Ω resistance?

Click here to see answer by Alan3354(69443)

Question 855675: A 5Ω resistance is connected in parallel with a 10Ω resistance. Another set, a 6Ω and an 8Ω resistances are also connected in parallel. Thr two sets are connected in series, What is the equivalent resistance?
Click here to see answer by Alan3354(69443)

Question 855995: find the equation of the straight line that passes through the point (-3,4) and is parallel to the straight line whose equation is 2x-y=5.
Click here to see answer by josgarithmetic(39613)

Question 856770: if the straight line with equation 12x-8y+24=0 and 4x+ky+16=0 are parallel, the value of k is:
a, 2
b, 1
c, -2
d, -4
e, -8/3
Click here to see answer by mananth(16946)

Question 856893: solve (x+y)(r-t)+4p=0
Click here to see answer by Fombitz(32388)

Question 856752: if the straight line with equation 12x-8y+24=0 and 4x+ky+16=0 are parallel, the value of k is:
a, 2
b, 1
c, -2
d, -4
e, -8/3
this is multiple choice
Click here to see answer by Fombitz(32388)

Question 856932: what will be the circumference of the sandbox if it already has a diameter of 12 meters?

Click here to see answer by Fombitz(32388)

Question 856768: the graph of y=x^3 is translated 3 units right and 4 units down. the equation for the resulting graph is:
A y=(x+3)^3-4
B y=(x-3)^3-4
C y=(x+3)^3+4
D y=(x-3)^3+4
E y=(x-4)^3+4
this is multiple choice
Click here to see answer by Fombitz(32388)

Question 856990: Find the point of inflexion(x,y), if f(x) = 2x^3 - 24x x^2 5
Click here to see answer by Fombitz(32388)

Question 856987: A spring with a mass 2kg length 0.5m. A force of 25.6 N is required to maintain its stretched to length of 0.7m. If tie spring stretched to a length of 0.7m and then released with initial velocity 0. Find composition of the mass at any time(t) can be written as acosxt +bsinxt.find the value of a,b,x.
Click here to see answer by Fombitz(32388)

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