CBSENEXT
Learn smart with cbsenext

Question:1. Choose an appropriate metric unit for the mass. several strands of hair (2 points) kilogram meter gram milligram 2. Which is likely to have a mass close to 3 kilograms? (2 points) small feather five-year-old cat grown elephant peach Complete the statement. 3. 6,501.5 km = __ m (2 points) 6,501,500 65,015 650,150,000 650.15 4. 2,231.5 milligrams = __ grams (2 points) 2.2315 g 223.15 g 22,315 g 0.0022315 g 5. When the temperature is 68 F, the speed of sound in air is approximately 343 meters per second. Approximately how many kilometers does sound travel in one second? (2 points) 34.3 m 3.43 km 0.343 km 0.0343 km 6. A sunflower was 1.8 meters high one week ago. In 7 days it grew 12 centimeters. Find the current height of the sunflower. (2 points) 1.8 m 10.2 cm 13.8 cm 1.92 m 7. Estimate the area of the circle. Each square represents 24 square inches. (2 points) about 576 in.2 about 28 in.2 about 672 in.2 about 56 in.2 8. Find the perimeter of the rectangle with length 97 inches and width 17 inches. (2 points) 228 in. 211 in. 1,649 in. 114 in. 9. Find the area of the rectangle with length 27 inches and width 40 inches. (2 points) 67 in.2 134 in.2 1,080 in.2 10,800 in.2 10. Each pail of plaster covers 97 square feet of ceiling. How many pails of plaster would you need to buy to cover the ceiling of a room with walls 14 feet long? (2 points) 5 pails 6 pails 4 pails 3 pails 11. Megan wants to build a fence around her pool. The pool is 28 feet long by 23 feet wide. The fence is to be 15 feet from the edge of the pool. a. What are the outside dimensions of the area surrounding the pool? b. How many feet of fencing will she need? (2 points) 53 ft by 58 ft; 222 ft 222 ft by 53 ft; 58 ft 58 ft by 222 ft; 53 ft 58 ft by 53 ft; 222 ft 12. Find the area of the parallelogram. Not drawn to scale (2 points) 54 cm2 85 cm2 170 cm2 27 cm2 13. Find the area of the triangle. Not drawn to scale (2 points) 91 ft2 148 ft2 182 ft2 629 ft2 14. Find the missing length for a circle. r = 19 cm, d = __ (2 points) 6.3 cm 38 cm 57 cm 9.5 cm 15. Find the circumference of the circle with the given radius or diameter. Round to the nearest unit. (2 points) 28 in. 79 in. 1,963 in. 157 in. 16. Find the area of the circle to the nearest tenth. (2 points) 6,939.8 cm2 73.8 cm2 147.7 cm2 1,734.9 cm2 17. Find the area of a circular table top with a diameter of 17 inches. Round to the nearest square inch. (2 points) 908 in.2 113 in.2 227 in.2 713 in.2 18. Use the net to find the surface area of the prism. Not drawn to scale (2 points) 930 m2 930 m2 930 m2 930 m2 Short Answer Note: your teacher will grade your responses to 19 27 to ensure you receive proper credit for your answers. Use the following information for questions 19 21. Use the figure, which is not drawn to scale. 19. What is the area of the rectangle? (4 points) 20. What is the area of the triangle? (4 points) 21. Find the area of the complex figure. (4 points) 22. Jamilla is building a square sandbox with sides 7 feet long. She wants to put sand 2 feet deep in the box. How much sand should Jamilla order? (4 points) 23. Find the surface area to the nearest tenth of a square meter. Not drawn to scale (4 points) 24. What three-dimensional figure models a soccer ball? (4 points) Use the following information for questions 25 26. A cylinder whose radius is 6 centimeters has a volume of 433.32 cubic centimeters. 25. Describe how to find the height of the cylinder. (4 points) 26. Find the height to the nearest hundredth of a centimeter. Use 3.14 for . (4 points) 27. A rectangular prism has dimensions of 3 in. by 6 in. by 7 in. Another rectangular prism has dimensions of 2 in. by 7 in. by 9 in. Are the volumes of the two prisms the same? If not, which one has the greater volume? Explain. (4 points) {1} OK {1} ##LOC[OK]## ##LOC[Cancel]## {1} Yes No

Answers:woah. thats toooooo many questions. ill only do some. 1. milligram 4. 2.2315 g 8. 228 in. 9. 1,080 in.2 your on your own for the rest of the problems. good luck.

---

Question:I have exams 2 morrow and kneed to know....... how to find circumference of a circle Ratio & Proportions Three diff. forms Recognizing proportions Solving proportions Integers Comparing Absolute Value Adding/Subtracting Multiplying/dividing Thanks!!!!!! MCD

Answers:C = (pi)d Now, what are the other questions? They really don't have much meaning.

---

Question:I decide to use a basketball to represent Earth in a scale model of Earth and the moon. A basketballs circumference is about 30 inches. What is the scale of my model?? Astrological Body/Approximate Circumference ----------------------------------------------------------------------- Earth=40,000 km Moon=11,000 km

Answers:The basketball's circumference is 30*2.54 = 76cm, or 3/4 of a meter. The earth's circumference is 40000*1000 =40,000,000 meters. Divide 3/4 into 40 million and you get a scale of 1:53,000,000. At that scale, the moon would be about the size of a tennis ball and should be placed about 7 meters away from the 'earth'.

---