11/08/19

 Suppose f(x) is the greatest integer function, i.e., f(x) equals the greatest integer less than or equal to .  So for example f(2.3) =2, f(4)=4 and f(6.9)=6 
 Suppose f(x) is the greatest integer function, i.e., f(x) equals the greatest integer less than or equal to .  So for example f(2.3) =2, f(4)=4 and f(6.9)=6 find ∫7 𝑓(𝑥)𝑑𝑥.11the integral is equal to more
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11/08/19

-5sin^2(t)-4cos(t)=-4
-5sin^2(t)-4cos(t)=-4 Find all solutions to equation below in the interval [0,2pi)
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11/08/19

Determine the indeterminate form and find the limit
Limit as x approaches 0 of arctan(x/5)/arcsin(x^2). I used L'Hospital's rules but could not simplify it enough to get an actual answer but the answer that I got was DNE.
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11/08/19

Finding Slope of Parallel Lines
What is the slope of a line parallel to the line whose equation is x−y=−1
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11/08/19

provide an example where the concept of similar triangles helped solve a problem
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11/08/19

If a ball is thrown directly upward with a velocity of 28 feet per second, its height (in feet) after t seconds is given by y=28t−16t^2. What is the maximum height(feet) attained by the ball?

I need help with this problem! If you could please explain step by step! THank you!
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11/08/19

Linear equations

Lindsay was the top scorer in a woman’s basketball league for 2006, with a total of 854 points. The number of two point field goals that Lindsay made was 58 less than double the number of three... more
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11/07/19

Find: 2b+8's coefficient by factoring out.
Many people say its 2, but the website I'm solving it on says 2 is incorrect. Help?!?!?!
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11/07/19

A circle is circumscribed about an equilateral triangle, and another circle is inscribed in the triangle.
What is the ratio of the are of the larger circle to the area of the smaller circle?Here is the link to the figure. Please remove the space before docs and after documenthttps://... more
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11/07/19

15 less than a third of a number is equal to twice the sum of a that number and four.
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11/07/19

Find an equation of the normal line to the parabola y = x^2 − 9x + 8 that is parallel to the line x − 7y = 9
my answer was 1/7x+19/2 but it was incorrect, any help is appreciated.
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11/07/19

Find the equation of the circle that is tangent to the line x=8 that has a center at (-5, 10)
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11/06/19

Write the domain in interval notation

write the domain in interval notation F(×)=5×-20
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11/06/19

What is the area of a hexagon inscribed in a circle if the diameter is 23 inches?
note: the hexagon can be subdivided into 6 congruent equilateral triangles
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11/06/19

A ladder 16m long is placed so that its foot is 3m away from the building. How far must the foot of the ladder be moved from the building to lower the top of the ladder by 2m?
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11/06/19

A smokestack is 180 feet high. A guy wire must be fastened to the stack 20 feet from the top. The guy wire makes an angle of 40° with the ground. Find the length wire rounded to the nearest foot
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11/06/19

To estimate the height of a building, two students find the angle of elevation from a point (at ground level) down the street from the building to the top of the building is 37°
From a point that is 350 feet closer to the building, the angle of elevation (at ground level) to the top ofthe building is 45°. If we assume that the street is level, use this information to... more
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11/06/19

Find the approximate value of the area of a regular polygon with 30 sides that is written into a circle with radius 7 mi. If needed, round your answer to three decimals.
= ____ mi2
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11/06/19

Calculus problem

Given the function 𝑔(𝑥) =(2𝑥)/(1+𝑥^2)Part 1: Find critical points and possible inflection points.Part 2: Find intervals on which the function is increasing/decreasing and concave up / down.Part 3:... more
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11/06/19

A water tower is located 361 feet from a building. From a window in the building, an observer notes that the angle of elevation to the top of the tower is 38°

and that the angle of depression to the bottom of the tower is 21°How tall is the tower?height = __ feet How high is the window from the ground? ___ feet from the ground report answer accurate to... more
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11/06/19

Points of inflection and concave

Given the function 𝑓(𝑥) = 𝑥 − 2cos(𝑥) on [0, 2𝜋]Part 1: Determine the open intervals on which the function is either concave upward or concave downward.Part 2: Determine the (𝑥, 𝑦) ordered pairs of... more
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11/05/19

Trigonometry Identity Questions
Hi, I have two problems that I cannot figure out how to even go about solving. I was hoping someone could help me with them. 1.) 9sec2 θ - 5tan2θ = 5 + 4sec2 θ2.) (1 + sinx) / (1 - sin x) = (csc x... more
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11/05/19

write a quadratic function whose graph has a vertex of (2,5) and passes through the point (4,3)
i also need he equaion and the work
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11/05/19

Write the equation of the line that is parallel to 3x=2-5y and passes through the point (3,-6)?
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11/01/19

The landlord of a 40-unit apartment building is planning to increase the rent.
Currently, residents pay $700/month. 4 units are vacant. Every $25 increase in monthly rent results in one more vacant unit. What rent results in max. revenue?
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