If the positive x-axis points to the right and the x-component of velocity is negative, a cart must be moving to the left.

True

False

A negative velocity means the object is going the opposite way of the positive direction. So a negative x component velocity is pointing the opposite way (left) of the positive direction (right). You can think of it as the cart is backing up as it faces the positive direction.

susie has 7 apples

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b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: