Step 1: Draw a number line, and place an open circle at β8.
A number line going from negative...
Mathematics, 09.04.2020 21:57 struckedblazing
Step 1: Draw a number line, and place an open circle at β8.
A number line going from negative 13 to negative 3. An open circle is at negative 8.
Step 2: Shade to the left of β8 to represent the infinite solutions to x greater-than negative 8.
A number line going from negative 13 to negative 3. An open circle is at negative 8. Everything to the left of the circle is shaded.
Step 3: Check work by substitution.
x = negative 9
Negative 9 greater-than negative 8 False
Step 1: Draw a number line, and place an open circle at β8.
A number line going from negative 13 to negative 3. An open circle is at negative 8.
Step 2: Shade to the left of β8 to represent the infinite solutions to x greater-than negative 8.
A number line going from negative 13 to negative 3. An open circle is at negative 8. Everything to the left of the circle is shaded.
Step 3: Check work by substitution.
x = negative 9
Negative 9 greater-than negative 8 False
Which best describes the situation?
The graph is incorrect. He should have used a closed circle at β8.
The graph is incorrect. He should have shaded to the right of β8.
The graph is correct. He should have checked his work with a number that was not on the shaded portion of the graph.
The graph is correct. He should have checked his work using β8.
Answers: 3
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Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.
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