01/14/20

basic identities

what is sinΘ when secΘ= √5
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01/09/20

I keep getting -.25. Can someone repeat the calculation? I'm losing my mind here.
The displacement (in meters) of a particle moving in a straight line is given by s = t2 − 8t + 15, where t is measured in seconds.(a) Find the average velocity over each time interval.[3.5, 4]?
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01/04/20

How many gallons of acid must be added to G gallons of a k% acid solution to bring it up to an m% solution?
A: G/(100-m)B: Gm/(100-m)C: G(m-k)/(100-m)D: 100-m/G(m-k)
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01/02/20

Evaluating problems
Which of the following is the graph of which function has y = -1 as an asymptote? Options: y = ln(x + 1)
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12/28/19

A fence 3 feet tall runs parallel to a tall building at a distance of 4 feet from the building...
A fence 3 feet tall runs parallel to a tall building at a distance of 4 feet from the building. We want to find the the length of the shortest ladder that will reach from the ground over the fence... more
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12/28/19

Speed, distance and time question
R and A travel with uniform speed from A to B and B to A respectively via the same route. R starts at 5:00 am while A starts fours hours later. They meet on the way at 1:10 PM. At what time do they... more
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12/20/19

An airplane is flying from New York City to Los Angeles. The distance it travels in miles, , is related to the time in seconds, , by the equation . How fast is it flying?
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12/18/19

algebra homework help
Write the sentence as an inequality. Graph the inequality.A number x is at most -5 or at least 0.
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12/16/19

Monthly interest rate

You maintain am average balance of $525 on your credit card, which Carrie's a 24% annual interest rate. What would the monthly interest rate be?
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12/16/19

If the function h(x)=(x+9)^7 is expressed in the form f∘g with f(x)=x^7, then find the function g(x).
I need help with this problem please!
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12/16/19

6^7x-5 = 8^4x-2
I couldn't figure it out! Please help!
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12/16/19

Lagrange multiplier question(Please help)
Show that the function f(x,y) = 8(x^2)y, subject to 3x - y = 9, does not have an absolute minimum or maximum.(hint: Solve the constraint for y and substitute into f.)Hmm. even though there is a... more
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12/15/19

f(x)=2x+1 and g(x) =x^2-7 find (f+g)(x)
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12/13/19

I need to find the polynomial function of degree 3.
I need to find the polynomial function of degree 3. (3,-3) is the point provided and the zeros are 4 and 6.
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12/13/19

Physics Vertical Kinematics

Ball A is dropped at rest from height H and strikes the ground with speed V. Identical ball B is dropped from rest and strikes the ground with speed 2 V. From what height was ball B dropped? ... more
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12/13/19

Geometric sequence

The sum of the first 5 terms of a geometric sequence is 93/4 and the first term is 12. What is the common ratio?
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12/12/19

A class has eight girls and six boys. If the teacher randomly picks six students, what is the probability that he will pick at least two boys?
A class has eight girls and six boys. If theteacher randomly picks six students, what isthe probability that he will pick at least twoboys?
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12/12/19

The sum of three consecutive integers is 5 more than the sum of the first and second. What is the third number?
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12/12/19

Direct Comparison Test to determine divergence or convergence
the series from 1 to infinity is: 5/ (n^(1/3)-2)The question is to determine convergence or divergence using direct comparison test. I wasn't sure how to do this because there's no value of bn that... more
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12/12/19

A jet of mass 4,277 kg lands on an airstrip, stopping after a distance of 727 m and has an initial landing speed of 29 m/s.
What is the work done, in Joules, by non-conservative forces to stop the jet?
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12/12/19

A canoeist paddled downstream for 4 hours with a 6km/h current to reach a campsite. The return trip against the current took 10 hours. Find the speed of the canoe in still water.

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12/10/19

The perimeter of a rectangle is 40 cm. It’s length is 9 cm. What is it width?
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12/10/19

Height- 45 feet. 5 feet above the ground. The angle of elevation is 45 degrees. What's the length of the rope?
This is a hard question in which indeed I cannot answer, I would like some help from someone so I can see what I am doing wrong...
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12/10/19

A train is going at 23.1 m/s when the train engineer sees a car on the tracks and pulls the emergency brakes. If it takes the train 25.5 s to fully stop, how far did the train go before it stopped.
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12/10/19

Math word problem

If Sam has 4 times as many dimes as quarters and they have a combined value of 520 cents, how many of each coin does he have?
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