tikbgames345
tikbgames345
13-09-2020
Mathematics
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I need help! I don't know how to do this
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walk6
walk6
13-09-2020
TIP: highlight the most important things!!! like numbers, amounts, the question, etc!!!
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Which electron configuration represents the electrons of an atom in an excited state? (1) 2–8–1 (3) 2–8–17–6(2) 2–8–6 (4) 2–8–18–5
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Lauren’s age can be represented by the expression 10m2. Kristen’s age can be represented by the expression 2m5. What is the ratio of Lauren’s age to Kristen’s
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Karin wants to use the distributive property to find the value of 19 • 42 + 19 • 58 mentally. Which expression can she use? a. 19 x(42 + 58) b. 19 x(42 x 58)
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What is the net charge on an ion that has 9 protons, 11 neutrons, and 10 electrons? (1) 1+ (3) 1– (2) 2+ (4) 2–
−4x + y = 6 −5x − y = 21
What groups are especially hard hit by poverty?
