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maths
Choose three options which are true: a) an angle of 150 degrees is equivalent to 2pie/3 radians. b) Cos 0 = cos (0 – pie/2) for al values of 0. c) Sin 0 = cos (0 – pie/2) for all values of 0. d) If triangle ABC has a right
asked by sarah on May 20, 2007 
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please guys help me this question, how to solve it. Calculate the total surface area of a hollow cylinder whose radius is 15 cm and height is 20 cm. What formula can be applied between (a) SA = 2pie*r*h + 2pie*r^2 (b)SA = 2pie*r*h
asked by kelvin on August 16, 2018 
Math
Hi! So, I'm doing a test, and I've answered all my answers except for one: Find the missing angle measure. Then classify the triangle by its measures. Because this will not let me post a photo, I will write what all the angles
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1. Hannah drew a pattern using only equilateral triangles. Which of the following statements about the angles is an equilateral triangle is true? A. The measurement of each angle is 60 degrees** B. The measurement of each angle is
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is my answer correct, please? thanks very much M = measurement If M angle 1 = 60 degrees, then m angle 3 + m angle 5 = what is answer? i put 90 degree for angle 3 which is right angle + 60 degrees = 150 given: m angle 1 = m angle
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Two angles of triangle are pie/6 and 2pie/3 radians. What is the measure of the third angle in degrees?
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The temperature dropped from  2 degrees to  11 degrees. How many degrees was the drop? Choose the best answer from the options below: A 13 B 13 C 9 D 9
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60 is what percent of 150? Choose the best answer from the options below: A 40% B 4% C 400% D 0.04%
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Physics
1. If the angle of the boat is 150 degrees, v' = 3 m/s, and v0 = 3.0 m/s, how far do you drift downstream before you arrive at the other side of the river? (HINT: read the x axis.) 2. If the river flow rate (v0) = 3.0 m/s, and the
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