07/29/15
neutralization question help
write a balanced formula equations for the following acid-base neutralization reaction.
1. A. hydroiodic acid and beryllium hydroxide.
B. nitric acid and calcium hydroxide
2. a 70.0 ml...
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07/28/15
Question Below. Please solve with steps.
The annual Gross Domestic Product (GDP) of a country is the value of all of the goods and services produced in the country during a year. During the period 1985-1999, the Gross Domestic Product of...
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The annual Gross Domestic Product (GDP) of a country is the value of all of the goods and services produced in the country during a year. During the period 1985
Can someone please just help me find the year of this? My teacher hasn't been much help.
07/28/15
Find all solutions of the equation that are in the interval [0o, 360o).
Find all solutions of the equation that are in the interval [0o, 360o).
tanx+secx=1
07/24/15
Find the exact values of sin2? cos2? and tan2?
Find the exact values of sin2θ cos2θ and tan2θ
for sinθ= -12/13; 270<θ<360
i got
sin2θ=120/169
cos2θ=-119/169
and tan2θ=120/119
07/24/15
1. Express cos 64 deg in terms of sin 32 deg. 2. Express sin 185 deg in terms of cos 370 deg.
1. Express cos 64 deg in terms of sin 32 deg.2. Express sin 185 deg in terms of cos 370 deg.
07/23/15
how to convert 36 cubic centimeters to cubic kilometers?
1. how to convert 36 cubic centimeters to cubic kilometers?
2. How to convert 870 cubic centimeters to milliliters?
3. Convert4,700,000 cubic centimeters kilometers?
Please break down...
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exponential question please help
Earth's population is approximately 6 billion people and is growing at an an annual rate of 1.9%. Assuming a Malthusian growth model, find the world population in 40 years.
07/22/15
Chem question
What mass of potassium nitrate is produced when 50.0mL of 0.200 M Al(NO3)3 reacts with 200.0mL of 0.100 M KOH?
07/20/15
Find the tangent of a parabola
Estimate the slope of the tangent line to the parabola y=x^2 at (1,1)
07/20/15
find the rate at which the price of the product is changing
Suppose that the demand function q for a certain product is given byq=7000e^(−0.006⋅p)where p denotes the price of the product. If the item is currently selling for $350 per unit, and the quantity...
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07/20/15
At what rate will the annual advertising revenue be increasing with respect to time 3 years from now?
It is estimated that the annual advertising revenue received by a certain newspaper will beR(x)=0.5x^2+4x+143thousand dollars when its circulation is x thousand. The circulation of the paper is...
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07/20/15
Solve and round to the thousandths place.
A radio active isotope decays according to the exponential decay equation where t is in days.
Round to the thousandths place.
For the half life: The half life is the solution (t) of the...
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07/19/15
A 113 L sample of Helium at 27oC is cooled to -78oC. Calculate the new volume of the Helium.
I really do not understand what this question is asking. I am taking an online class an need a tutor.
07/19/15
if angle is 45 beta is 45 and side c is 6 what are a and b ? is the answer 4.24?
i typed that into my online homework and it showed up wrong what am i doing wrong ?
07/17/15
What is the speed of the plane in still air? What is the speed of the wind?
A plane traveled 2208 miles to Miami and back. The trip there was with the wind. It took 16hours. The trip back was into the wind. The trip back took 23 hours.
07/17/15
What was the freight train's average speed on the outbound trip?
A freight train made a trip to Las Vegasand back. The trip there took three hoursand the trip back took 12.6 hours. Itaveraged 52.8 km/h faster on the trip therethan on the return trip.
07/15/15
Find the t value(s) is the interval (0,8) where the function f(t)=e^(t/6)/t attains its local or absolute minimum value(s). The minimum(s) are t=?
needing help pleaseee
solutions of the equation that are in the interval [0, 2p)0.[sinx +cos x = 0 ]
not seeming to get this problem
07/15/15
If the annual income from the investments is $ 11035 , how much was invested in each account?
Maricopa's Success scholarship fund receives a gift of $ 185000. The money is invested in stocks, bonds, and CDs. CDs pay 3.5 % interest, bonds pay 5 % interest, and stocks pay 11.9 % interest....
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07/12/15
Suppose f(0)=5, f'(0)=2, f(1)=3, f'(1)=6, g(1)=5, g'(1)=-8, and H(x)=f(ln(x))+ln(g(x)). Find dH/dx||||x=1. H'(1)= ?
need help
07/10/15
A ball is thrown vertically upward from a height of 6 feet with an initial velocity of 90 feet per second. How high will the ball go?
A ball is thrown vertically upward from a height of 6 feet with an initial velocity of 90 feet per second. How high will the ball go?
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