Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 7
+ 3
A. 10
B. 30
C. 21
D. 10
Answer: A
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Solve the problem.A deep sea diving bell is being lowered at a constant rate. After 11 minutes, the bell is at a depth of 300 feet. After 35 minutes the bell is at a depth of 1500 feet. What is the average rate of lowering per minute? Round your answer to the nearest tenth.
A. 42.9 ft per min B. 50.0 ft per min C. 0.02 ft per min D. 34.3 ft per min
Add.Add 1.665 and 3.4.
A. 5.055 B. 5.175 C. 5.066 D. 5.065
Solve the problem.A sealed-beam headlight is in the shape of a paraboloid of revolution. The bulb, which is placed at the focus, is 3 centimeters from the vertex. If the depth is to be 6 centimeters, what is the diameter of the headlight at its opening?
Fill in the blank(s) with the appropriate word(s).
Use a proportion to solve the problem. Round to the nearest tenth as needed.A triangle drawn on a map has sides of lengths 8 cm, 10 cm, and 15 cm. The shortest of the corresponding real-life distances is 136 km. Find the longest of the real-life distances.
A. 170.0 km B. 255.0 km C. 160.0 km D. 265.0 km