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Renne A.

College Algebra

3 hours ago

Solve each system using methods of substitution or elimination. -1 mark for each variable and 1 mark for checking of solution.

Veronica R.

Chemistry 101

4 hours ago

Determine the whole number mole ratio of moles of NaOH to moles of sulfuric acid

Roxanne B.

Organic Chemistry

4 hours ago

You have been asked to determine the fate of a contaminant spilled into the following system: Contaminant spilled into lake with a volume of 7 x 10^6 m3 Sediment volume: 2.1 x 10^4 m3 Sediment foc: 0.05 Sediment density (ps ): 2.5 kg/L Air volume: 6.0 x 10^9 m3 Compound information: Carbon Tetrachloride Kaw: 1.082 Log Koc: 2.18 Density (p): 1.59 g/cm3 a. Find the fraction of carbon tetrachloride in air, water, and sediment at equilibrium. Assume no reaction and that the system is closed. Make sure you carry your units throughout the calculation to ensure they work out the way they should. b. If the maximum allowable concentration of carbon tetrachloride in water is 5 ug/L and 32,000 L of carbon tetrachloride spills into the lake, will the lake water exceed the allowable concentration at equilibrium?

Fahima R.

Algebra

4 hours ago

68934.543 nearest ten

M P.

Calculus 1 / AB

4 hours ago

Given a total Surface area of 200cm^2. How could I maximize the volume of a square pyramid?

Zrie Z.

Calculus 2 / BC

4 hours ago

find the differential equation for the given family of curves where circles tangent to the x-axis

Tamara T.

Differential Equations

4 hours ago

Find the general solution

Tamara T.

Calculus 2 / BC

4 hours ago

Find the position of the center of mass

Karen R.

Algebra 2

4 hours ago

The function below has at least one rational zero. Use this fact to find all zeros of the function. f(x)=6x^3-43x^2+6x-7

Vanessa G.

Chemistry 101

4 hours ago

8. The density of a gas was measured at 1.00 atm and 273 K and found to be 3.163 g/L. Calculate the molar mass of the gas. What is the likely identity of the gas?

Hana H.

Calculus 1 / AB

None

I wanted to ask about the problem attached here. Why does the 2 become negative?

Elci D.

Probability

4 hours ago

Leo has a pizza business. The times to prepare and deliver pizzas are approximately normally distributed with average time of 27 min and standard deviation of 5 min. a0 suppose that Leo advertises if takes more than 35 min to get your pizza, you get it free. what fraction of his take-out pixxas will he have to give away free?

Karen R.

Algebra 2

4 hours ago

The function below has at least one rational zero. Use this fact to find all zeros of the function. h(x)=2x^3-7x^2-17x+10

Karen L.

Physics 103

4 hours ago

mA = 2mB, vAi = 0.5 m/s, vBi = 0. What is the velocity of the object A after the collision

Enmanuel E.

Calculus 1 / AB

4 hours ago

A company is constructing an open top, square based rectangular tank that will have a volume of 26.5 ft^3. What dimensions yield minimum surface area ? Round to the nearest tenth

Sticks C.

College Algebra

4 hours ago

) The Martinezes plan to make payments of $2400 into a time certificate account on the last day of this and every year until their retirement in 20 years. How much will they have in the account when they retire if the account earns 8.75% compounded annually?

Karen R.

Algebra 2

4 hours ago

mutiply the following (x+3i)(x-3i)

Chantelle C.

Algebra

5 hours ago

Can you please solve Question in picture?

Chantelle C.

Algebra

5 hours ago

Please can you help with Questions 9a and 9b in Picture, please?

Bilal U.

Precalculus

5 hours ago

Establish the identity. sec^2(-0)-1=tan^20

Irwa S.

Biology

None

What role do H+ and OH- ions play in pH?

Sticks C.

College Algebra

5 hours ago

You have found the sweetest cruising boat, a steal at $9,800. The best financing rate you can find for a loan is 9.75% compounded monthly over 4 years. How much will your monthly payment be?

Debbie S.

Algebra

None

Sticks C.

College Algebra

5 hours ago

I’m going to invest $4000 at 7% interest compounded continuously for 12 years.

Chantelle C.

Algebra

5 hours ago

Last week when David brought his weekly fruit supplies, 8 apples, and 5 bananas cost him $9.40. This week the price hadn't changed but felt like a change and brought 7 apples and 6 bananas. This cost him $9.20. Find out the cost of a banana and the cost of an apple?

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