act mathematics test

The horizontal and vertical components of a force acting on a body are 27 Newtons 36 Newtons. Find the magnitude of the force. => 9 Newtons or 45 Newtons or 63 Newtons or tan -1 ( 4 / 3 ) Newtons..

Two forces of 10 lb and 24 lb act on a body at right angles. Find the resultant force. => 34 lb or 17 lb or 25 lb or 26 lb..

Two forces F 1 = 25 N and F 2 = 60 N act on a body at right angles. Find the resultant force. => 54.5 N or 85 N or 35 N or 65 N..

Two forces F 1 = 35 N and F 2 = 84 N act on a body at right angles. Find the resultant force. => 49 N or 91 N or 76.3 N or 119 N..

Two forces F 1 = 45 lb and F 2 = 45 lb act on a body and the resultant force is F 3 = 45 lb. Find the measure of the angle between the two forces. => 30 or 150 or 60 or 120..

The ACT Mathematics and Statistics scores for 7 students are shown. Determine the correlation coefficient, the equation of the regression line and predict the value for y ′ when x = 20. Maths ACT 15 30 23 27 11 22 18 Statistics ACT 12 29 25 26..

Question 1 - Question: From a class of 32 students, 4 are to be chosen for a competition. In how many ways can this be done? Answer: We are to select 4 students from 32. This selection can done ..

Question 21 - Question: A family of 4 brothers and 3 sisters is to be arranged in a row for a photograph. In how many ways can they be seated if all the sisters are together? Answer: Let B 1 ,B 2 ,B 3 ,B 4 denote the brothers and S 1 ,S 2 ,S 3 denote the sisters. Since the sisters are to be seated ..

Question 21 - Question: A letter lock consists of three rings, each marked with fifteen different letters. Find in how many ways it is possible to make an unsuccessful attempt to open the lock. Answer: 1 s t ring can be attempted in 15 ways. 1 s t and 2 n d ring can be attempted in 15 x 15 = 15 2 w..

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