5. If the tiles for the table in problem 3 cost \( \$ 0.24 \) each, how much will Mrs. Twyman pay for the tiles to cover her table? 6. How large a bedspread is needed to cover a round bed with a radius of 2.1 meters? 7. How many square yards of dancing space are there on a round dance floor with a radius of \( 3 \frac{1}{2} \) yards? 8. If flooring costs \( \$ 45 \) per square yard, how much will the flooring cost to cover the dance floor? 9. Find the amount of space inside a circular garden with a radius of one foot. 10. A circular hole in Mr. Henry's wall has a radius of one-half foot. How much material does he need to cover it?
Added by Aaron M.
Close
Step 1
Twyman's table from problem 3. (Assume you have this information from problem 3.) Show more…
Show all steps
Your feedback will help us improve your experience
Julie Silva and 81 other Algebra educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
See Examples $5-7 .$ If you do not have a calculator, use 3.14 as an approximation of $\pi .$ Answers may vary slightly depending on which approximation of $\pi$ is used. Rugs. Find the amount of floor area covered by a circular throw rug that has a radius of 15 inches. Round to the nearest square inch.
Equations, Inequalities, and Problem Solving
Formulas
This project involves finding the perimeter and area of a circle. You don't need to know the radius and circumference. Just use the formula for finding the circumference of a circle. For example, if the circumference is proportional to the radius, then the two quantities are related. To find the top-half of the circle, find the equation of the circle centered at the origin and with a given radius. The bottom-half radius can be found by subtracting the top-half radius from the total radius. To find the circumference of the circle, find the length of the circumference using the formula for finding the circumference of a circle. For spheres, find the volume by rotating the cone problem #1 around the x-axis (and perhaps adjusting for symmetry). Find the surface area by rotating the cone problem #1 around the y-axis (and perhaps adjusting for symmetry). For cones, a 3D object with a flat base and curved sides that meet at a point, find the equation of the line with the y-intercept and x-intercept. Find the volume formed by rotating the triangle about the x-axis. Find the total surface area of the cone by finding both the surface area formed by rotating the line in 3D and including the area of the base.
Adi S.
A farmer wants to construct a fence around a rectangular field. Sides with neighbours need reinforced fencing that costs $6 per meter. The other sides use regular fencing that costs $5 per meter. Assuming the farmer has neighbours on the west and south sides, answer the following questions. Give your answers as exact expressions or decimals accurate to at least two places. Find the dimensions that will cost the least to build a fence with an area of 1758 m². Length of east and west fences: m Length of north and south fences: m
Syed M.
Recommended Textbooks
Elementary and Intermediate Algebra
Algebra and Trigonometry
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD