Mathematics, 24.10.2019 04:10 donald1255
Reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola. the microphone itself is placed on the focus of the parabola. if the parabola is 60 inches wide and 30 inches deep, how far from the vertex should the microphone be placed?
Answers: 1
Mathematics, 21.06.2019 13:30
Two fire-lookout stations are 190 miles apart, with station a directly south of station b. both stations spot a fire. the bearing of the fire from station a is upper n 55 degrees upper e and the bearing of the fire from station b is upper s 60 degrees e. how far, to the nearest tenth of a mile, is the fire from each lookout station?
Answers: 1
Mathematics, 21.06.2019 16:00
If there is no real number solution to the quadratic equation x^2+2x+c=0 what is a possible value of c? 1 -2 0 3
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Mathematics, 21.06.2019 16:30
One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.
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Mathematics, 21.06.2019 23:00
Charlie tosses five coins.what is the probability that all five coins will land tails up.
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Reflecting dish of a parabolic microphone has a cross-section in the shape of a parabola. the microp...
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