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1-The following quadratic equation describes the average RAM installed, y, in Gigabytes, on PCs t years after 2000.
y=0.022x2+0.25
a-Find the average RAM installed on PCs in the year 2007.
b-f this trend continues, in which year will the average RAM installed on PCs be 14 GB?
c-Find the vertex of the quadratic equation. Describe what vertex means here.
2-A logistics company uses two different models of computers in their office. The first model cost $45 to upgrade and the second model cost $30 to upgrade. If the company upgrades 200 computers and it cost $7,125 in total, how many units of each model are upgraded?
3-What is an extraneous solution to radical equation?
4-Find and solve an example of an absolute value equation.
Find the solution of the differential equation
the width of a rectangle is fixed at 19 cm. what lengths will make the perimeter greater thatn 84 cm?
A rectangular storage container with a lid is to have a volume of 16 m3. The length of its base is twice the width. Material for the base costs $8 per m2. Material for the sides and lid costs $16 per m2. Find the dimensions of the container which ..
assume that a company sold a delivery van that had been used in the business for three years. records of the company
A downtown parking lot is 360 feet long. It's length is 4 times its width. How wide is the parking lot? Let the width = x
Determine the area of the largest rectangle that can be inscribed in a semicircle of radius 8". Figure shows that the area can be written as A =(2x)y, if (x,y) is the point of the upper right corner of the rectangle.
Clyde's Marina has estimated that fixed costs per month are $303,480 and variable cost per dollar of sales is $0.40.
A rectangular swimming pool 20 ft long, 12 ft wide, and 12 ft deep is filled with water to a depth of 11.5 ft. How much work would be required to pump half of the water into a drain at the top edge of the pool. (Take as the density of water delta ..
(b) What should be the level of sales be in order for the division to realize a 13% profit over the cost of making the diaries? (Round your answer to the nearest whole number.)
Which of the following is not a characteristic of an ideal statistician?
In a survey of 400 households regarding the ownership of VCRs and DVD players, the following data was obtained.
Let ubar and vbar be nonzero vectors in 2 or 3 space and let k=||u|| and m=||v||. Show that the vector Wbar=mubar +kvbar bisects the angle between ubar and vbar.
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