05/21/21

Consider the function f(x) = −x 2 + 4x − 2.

a)Sketch the graph of f in the interval [−1, 5]. (6 marks) b) Find the equation of the tangent line to the graph of f at x = 3, and show it on the graph of f. (4 marks)
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05/21/21

If we travel 440 km at 55kph, then the travel time is 24 200 hours.
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05/21/21

need help its been quit hard for me to solve this one
A candy distributor needs to mix a 10% fat-content chocolate with a 30% fat-content chocolate to create 200 kilograms of a 24% fat-content chocolate. How many kilograms of each kind of chocolate... more
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05/21/21

Sarawong spent 15 dollar's on fancy pens how nuch each pen costs

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05/21/21

Solving a math problem.

For a certain company, the cost for producing x items is 35x+300 and the revenue for selling x items is 75x-0.5^2.
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05/21/21

Sarah is selling boxes of homemade cupcakes. She figures she can sell 200 boxes if she sells them for $8 each. for every fifty cents she raises the price,she figures that she'll sell 10 fewer boxes.
What price should Sarah sell the boxes for to maximize her revenue? What will that revenue be? Sarah decides that she doesn't really care about profit, she just wants as many people as possible... more
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05/20/21

Cindy’s square-shaped garden has side lengths of x ft. She will plant 5 tulip bulbs per square foot. How many bulbs will she plant if the garden has a side length of 8 feet?
_________________________bulbs
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05/20/21

Which is the largest interval over which the function shown in the table is decreasing?
x f(x)=3x^2 (x,y)-2 12 (-2,12)-1 3 (-1,3)0 0 (0,0)1 ... more
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05/20/21

What is the answer? How do I do this?
In a hospital, there is a ramp for the disabled at the entrance. Has a length of the ramp is N m, what would be its length on the floor in meters if it has an angle of inclination with respect to... more
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05/20/21

Comparing Populations
In a survey, a group of middle school students were randomly chosen and asked whether they would attend the school dance. Of these students, 65% said yes. If 52 students responded yes, how many... more
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05/20/21

The perimeter of a yard is 25 yards if the length of the yard is 5 what is the width of the yard
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05/20/21

y=x-1 seven ordered pairs
please im dying with that question ddddddddddddd
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05/20/21

on a sclae drawing, 1cm represents 4m. what length on the drawing woukd be used to represent 6.5m?
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05/20/21

Please help with this one word problem
Sam and Leo are selling small and large doughnut boxes for a fundraiser. Sam sold 3 small doughnut boxes and 14 large doughnut boxes for a total of $203. Leo sold 11 small doughnut boxes and 11... more
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05/20/21

Differentiation
A woman at a point A on the shore of a circular lake with radius r=4 wants to arrive at the point C diametrically opposite A on the other side of the lake in the shortest possible time. She can... more
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05/20/21

A family of four went to see a live concert in Vancouver. Each family member bought a commemorative
A family of four went to see a live concert in Vancouver. Each family member bought a commemorative concert T-shirt, which cost 1/5 of the price of a ticket. The total bill for 4 tickets and 4... more
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05/20/21

The width of a straight racetrack is one tenth of the measurement of its length. The perimeter of the track is 132 metres. What are the dimensions of the length and width of the track?
I need help with a step-by-step because I do not understand how to do it.
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05/20/21

Identify the constant difference for a hyperbola with foci (-8, 0) and (8, 0) and a point on the hyperbola (8, 30)
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05/20/21

12 apples cost $9.60. 4 pumpkins cost $14.40. What is the cost of 5 apples and 1 pumpkin?
i really need help on this, please help.
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05/20/21

A 30-foot tall house casts a shadow that is 25 feet long. At the same time, a nearby apartment building casts a shadow that is 125 feet long. How tall is the apartment building to the nearest foot?
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05/20/21

Halp I suck at math

The perimeter of this triangle is 39 feet. solve for x, and give the side lengths of the triangle.
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05/20/21

Her desk is 59 inches wide. She knows that the height of the door is 80 inches and the diagonal measure of the door is 100 inches.

Mrs. Freeman is trying to determine if her new desk will fit through her classroom door. Her desk is 59 inches wide. She knows that the height of the door is 80 inches and the diagonal measure of... more
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05/20/21

Find an equation for the line with the given properties. Perpendicular to the line -3x + y = 6; containing the point (0, - 2)
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05/20/21

Geometry please help asap
In this unit, you calculated the surface area of solid figures composed of polygons, such as rectangles and triangles. But imagine finding the surface area of a cylinder—a solid figure that has... more
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05/20/21

Percentage and population
Students in two homeroom classes were surveyed to find out their favorite foods.Results are shown in the table below. What percent of the students prefer ice cream as their favorite?Pizza: 14Ice... more
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