04/19/21

A 40 foot tall building r feet from an observer subtends an angle of 4º
Use the arc length formula to estimate r (the distance between the observer and the building) to the nearest foot.r ≈ ?
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04/19/21

Given that sin(θ)=3√10/10, and θ is in Quadrant II, what is sin(2θ)?
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04/18/21

help with calculus
Show that f(x) = 2000x^4 and g(x) = 200x^4 grow at the same rate.
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04/18/21

The total cost (in dollars) of producing x cell phones is: C(x) = 2000 + 10x – 0.25x2 Find the exact cost of producing the 41st cell phone .

The total cost (in dollars) of producing x cell phones is:         C(x) = 2000 + 10x – 0.25x2a) Find the exact cost of producing the 41st cell phone .                            
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04/18/21

-y=3-1/4x - How would I solve this?
I am confused how I would change the -y to a y.
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04/18/21

Change the equation y+3=2^x so that the graph of the new equation has no x-intercepts.
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04/18/21

4. Write the equation of the line which passes through the following points: 4, 6) and (5, 9)

Write the equation of the line which passes through the following points:(4, 6) and (5, 9)                                                                              
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04/18/21

What are the steps to solving x^2 - 6x + 9 = 0 by graphing and labeling the roots?

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04/18/21

For each scenario below, determine which calculation should be made: Perimeter, Area, Lateral Area, Total Surface Area, or Volume. Then, answer the question
Cinema theaters created a new popcorn box in the shape of a rectangular prism. The new box has a length of 6 inches, a width of 3.5 inches, and a height of 4 inches. How much popcorn can the box... more
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04/18/21

For each scenario below, determine which calculation should be made: Perimeter, Area, Lateral Area, Total Surface Area, or Volume. Then, answer the question
Sam needs to buy a new carpet for his bedroom. If his room is a 12 ft by 9 ft rectangle, how much carpet does he need? 
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04/18/21

what is u ∙ v if u = 3i + 4j and v = i - 2j
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04/18/21

What two numbers multiply to equal 36 but also add to equal -6
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04/18/21

What two numbers multiply to equal 36 but also add to equal -6
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04/18/21

polynomial equations and functions
An open box is to be made from a cardboard. The width of the cardborad is 5inches lee than the length by cutting 4 inch squares from each corner and folding up the sides. If the volume of the box... more
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04/18/21

8. If f(x) = 5x + 2 and g(x) = 3x – 5 then fg(x) = ?
If f(x) = 5x + 2 and g(x) = 3x – 5 then fg(x) = ?
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04/18/21

Find the area (in square inches) of a square whose diagonal has length 14
The area A of a square can be found using A = 1/2 d2,  where d is the length of the square's diagonal. Find the area (in square inches) of a square whose diagonal has length 14
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04/18/21

What are the overall dimensions (in feet) of the rectangular enclosure shown? (b) What is the total area (in square feet) of the enclosure shown?
Farmer Watson has decided to take 735 ft of fencing he purchased and use it to enclose the subdivided plots shown.(a)What are the overall dimensions (in feet) of the rectangular enclosure... more
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04/18/21

(a) The ratio of the lengths of the corresponding sides is s1/ s2 = 3/5. (b) The length of the first rectangle is 8 m, and the length of the second rectangle is 6 m
Find the ratio A1/ A2 of the areas of two similar rectangles for the following scenarios. .(a) The ratio of the lengths of the corresponding sides is s1/ s2 = 3/5. (b) The length of the first... more
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04/18/21

Trigonometry Word Problem
A helicopter flies from the airport on a course with a bearing of 34 degrees. After flying for 50 miles, the helicopter changes course and flies on a bearing of 162 degrees. The helicopter flies... more
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04/18/21

A tunnel through a mountain is shaped like a semi-circle. It is 40 feet wide across the bottom. Exactly how high is this tunnel at the points which are 8 feet from the sides.
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04/18/21

4. If f(x) = 2x + 3 when x ≥ 0 x2 + 1 when x ≤ -2 then f(-3) a) 9 b) -8 c) -3 d) 10
  If f(x) =   2x + 3 when x ≥ 0      x2 + 1 when x ≤ -2           then f(-3)a)      9b)     -8c)     -3d)     10
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04/18/21

1. The total cost (in dollars) of producing x cell phones is: C(x) = 2000 + 10x – 0.25x2 Find the exact cost of producing the 41st cell phone .

The total cost (in dollars) of producing x cell phones is:         C(x) = 2000 + 10x – 0.25x2a) Find the exact cost of producing the 41st cell phone .   
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04/18/21

(a) Find the total floor space (area) of the deck in square feet. ( b) Find the cost in dollars of building the deck based on the estimated cost of $4.40 per ft2.
Gary and Carolyn plan to build the deck shown.12 ft12 ft18 ftA deck consists of two rectangular wooden platforms. The platforms share a side; the right side of the first platform is attached to the... more
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04/18/21

You want to purchase a new car in 3 years and expect the car to cost $30,000
You want to purchase a new car in 3 years and expect the car to cost $30,000. Your bank offers a savings plan with a guaranteed APR of 5.5% if you make regular monthly deposits. How much should you... more
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04/18/21

When comparing rectangles based solely on there length and width how do you find wich rectangle has a surface and perimeter shape closest to a square in shape thank you
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