8) 30% of pupils in a school travel to school by bus. From a sample of ten pupils chosen at random, find the probability that a) only three travel by bus (0.2668) b) less than half travel by bus(0.8497)

Q: find the solution set 8x/x+9 is greater than or equal to 0

A:

Q: Graph the solution set. 3x 2y < 6

A: 3x-2y&lt;6On putting, the value ofx=0 in equation 3x-2y=63×0-2y=60-2y=6y=-3On putting…

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Q: %3D The set of equations x + 2y = 4 and 2x + 4y = 10 has o one solution only O no solution O an…

A:

Q: 4-y² 2-y SŠ *-* zdxdzdy

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Q: 6. -30 4 2) -5 -10 40 寸

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Q: Solve. x+y+z = 3 2x +y-z = 8 x-y+z = - 5 The solution set is {OID}: (Simplify your answer.)

A:

Q: Do the points (1, 5, −7), (1, 7, −10), and (1, 8, −13) lie on the sameline?

A: