Step-by-step explanation:
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Reflecting across the x axis changes the polarity of the y coordinate so the answer would be x
Answer:
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Suppose a dart is thrown at the dartboard shown below, and it is equally likely that the dart will land anywhere on the board. Find the probability that it lands on the shaded region. Round to the nearest
Answer:
Mary is 10 years old, and her father is 40 years old.
Step-by-step explanation:
Let Mary's age = x.
Mary's father is four times as old, so he is 4x.
Five years ago, Mary was x - 5, and her father was 7(x - 5).
Five years ago, Mary's father was 4x - 5.
7(x - 5) = 4x - 5
7x - 35 = 4x - 5
3x = 30
x = 10
4x = 4 * 10 = 40
Mary is 10 years old, and her father is 40 years old.
