There are three red balls and seven white balls in box A, and six red balls and four white balls in box B. After throwing a die, if the number on the die is 1 or 6, then pick a ball from box A. Otherwise, if any other number appears (i.e., 2, 3, 4, or 5), then pick a ball from box B. Selected ball has to put it back before proceeding further. Answer the followings:
(a) What is the probability that the selected ball is red?
(b) What is the probability a white ball is picked up in two successive
selections?
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4/13 - Reduce all fractions to their simplest forms. Convert all improper fractions to mixed numbers. Provide answers in the following format:
Fraction: 3/4 Mixed number: 1 5/8
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Identify four items of fire prevention and/or protection that should be in a welding shop
What will be an ideal response?
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Explain why the torque of a dc motor goes down as the motor speeds up
What will be an ideal response?
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These are designed to protect you from electrical shock by interrupting a household circuit when there is a difference in the currents in the hot and neutral wires:
What will be an ideal response?
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