04/17/19

#### Consider the function f(x)=x√(x+8)

a.) f(x) is decreasing on the interval b.) f(x) is increasing on the interval c.) f(x) has a local minimum at x=d.) f(x) is concave up on the interval

04/17/19

#### Math question please help

1) Zeno Jr. is standing 16 feet from the door. Each step he takes to the door covers half the distance left to the door.a. Predict how far Zeno Jr. will still be from the door after...
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04/13/19

#### Write sin 61° in terms of cosine

#### Line Equation with angle?

How can I find equation of a line or draw a line, given a starting point, length of line and angle of line (relative to x-axis)?

03/25/19

#### Physics Spring Problem

Another spring, another hill, this time a bit more geometric (see figure). A block (m = 0.41 kg) is pushed 0.65 m against a spring and released from rest. The block then travels over an icy patch...
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03/25/19

#### Physics Spring Question

In order to determine the acceleration of an elevator, you hang a 0.57-kg mass from the end of a spring with spring constant k = 0.93 N/cm. When the elevator starts to accelerate, you measure the...
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03/08/19

#### Y intercepts to a tangent line

Find the y intercepts of a tanget line to the curve y=(x-1)/(x+1) that the line is parallel to x-2y=4

06/29/18

#### When the sum of 4 and three times a positive number is subtracted from the square of the number, 0 results. Find the number.

help help help help help help help help help help help help help

#### What is the interest at the end of one year if the interest paid is compounded quarterly and annually?

I deposit $100.000 at 1.2% per year in a money market account. What is the interest at the end of one year if the interest paid is compounded annually and quarterly?

06/20/17

#### how to find the cost per month of producing a lamp

A company has a manufacturing plant that is producing quality lamps. They find that in order to produce 290 lamps in a month, it will cost $9530. Also, to produce 500 lamps in a month, it will cost...
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06/14/17

#### Graph the equation and identify the y-intercept y= 3x-9

Hi, I need help with graphing linear equations.

12/11/14

#### Please Answer!!!

A boat traveled 210 miles downstream and back. The trip downstream took10 hours. The trip back took 70 hours. What is the speed of the boat still in water? What is the speed of the current?

12/10/14

#### Hi, can I get a little bit of help with this math problems?

Find all solution in [0,2pi)
1) 2 sin^2 x=1
2) √3 csc x-2 = 0

12/10/14

#### Whitney left the library traveling 4 mph. Then, 2 hours later, Renee left traveling the same direction at 8 mph. How long until Renee catches up with Whitney?

Whitney left the library traveling 4 mph. Then, 2 hours later, Renee left traveling the same direction at 8 mph. How long until Renee catches up with Whitney?

12/08/14

#### chemistry, A 8.10-L container holds a mixture of two gases at 51 °C.

A 8.10-L container holds a mixture of two gases at 51 °C. The partial pressures of gas A and gas B, respectively, are 0.308 atm and 0.520 atm. If 0.120 mol of a third gas is added with no change in...
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12/08/14

#### A gaseous compound has a density of 1.56 g/L at 27.0 °C and 1.33 atm. What is the molar mass of the compound?

A gaseous compound has a density of 1.56 g/L at 27.0 °C and 1.33 atm. What is the molar mass of the compound?

12/06/14

#### Chemistry, find standard heat of reaction of this reaction. Please help me understand how to do these problems

This question is about the reaction4HCl(g)+O2(g)-->2H20(g)+2Cl2(g)A) Using the values of ΔfH°, find the standard heat of the reaction of this reaction.B) Using average bond energies, estimate...
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