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Questions in Grade Middle-school

📝 Answered - Calculate the circumference for the following radii and diameters. Use the formula for circumference, \( C = 2\pi r \) for radii, and \( C = \pi d \) for diameters. 1. \( r = 9 \, \text{ft} \) 2. \( r = 21 \, \text{m} \) 3. \( d = 30 \, \text{cm} \) 4. \( d = 24 \, \text{cm} \) 5. \( r = 15.2 \, \text{in} \) 6. \( r = 16.01 \, \text{ft} \) Please provide only the answers, for example, the circumference for \( r = 9 \, \text{ft} \) is 56.52 ft.

📝 Answered - The lengths of the legs of a right triangle are 15 cm and 20 cm. What is the length of the hypotenuse? A. 13.23 centimeters B. 25 centimeters C. 5.92 centimeters D. 35 centimeters

📝 Answered - Between which two consecutive integers does 173 lie? A. 10 and 11 B. 11 and 12 C. 13 and 14 D. 12 and 13

📝 Answered - A room is [tex]3\frac{3}{4}[/tex] m long and [tex]4\frac{2}{3}[/tex] m wide. What is the area of the room?

📝 Answered - What are the solutions to the equation [tex]x^2 = 81[/tex]? A. 40.5 only B. 40.5 and –40.5 C. 9 and –9 D. 9 only

📝 Answered - What is the square root of 13 approximated to the nearest tenth? A. 3.5 B. 3.6 C. 3.7 D. 3.8

📝 Answered - What part of the city has a similar job to the cell membrane?

📝 Answered - Solve for \( b \). \[ 7b + 11 > 9b - 13 \] What is \( b \)?

📝 Answered - Wayne filled 5 glasses with two-thirds of a liter of soda in each glass. How much soda did Wayne use?

📝 Answered - What is bigger: [tex]\frac{5}{8}[/tex] or [tex]\frac{3}{4}[/tex]?