Determine the inequality represented by the following diagram
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The weight of an object on the moon is 1/6 it's weight on Earth. Write 1/6 as a decimal.
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Which is a solution to the equation?(x −2)(x + 5) = 18 x = −10 x = −7 x = −4 x = −2
(51.68) ÷ 0.6 – 0.22
(51.68) ÷ 0.42
51.68 ÷ 0.16
32.3
Which errors did Clarise make? Check all that apply.
1. She subtracted before evaluating the exponents.
2. She evaluated inside the parentheses first.
3. She divided before she subtracted.
4. She subtracted before she divided.
5. She divided incorrectly.
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Answer:
the answer is 2,and 4 and 5
Answer:
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Step-by-step explanation:
A,D,E
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Answer:
The charges that atoms make when they bond with other atoms can be determined by looking at their positions on the periodic table. Here is a breakdown of the charges for the given elements in Column A:
1. Calcium (Ca): Calcium belongs to Group 2 on the periodic table, which means it has 2 valence electrons. When calcium bonds, it tends to lose these 2 electrons, resulting in a charge of +2 (answer b).
2. Francium (Fr): Francium belongs to Group 1 on the periodic table, which means it has 1 valence electron. When francium bonds, it tends to lose this electron, resulting in a charge of +1 (answer f).
3. Bromine (Br): Bromine belongs to Group 7 on the periodic table, which means it has 7 valence electrons. When bromine bonds, it tends to gain 1 electron, resulting in a charge of -1 (answer f).
4. Sulfur (S): Sulfur belongs to Group 6 on the periodic table, which means it has 6 valence electrons. When sulfur bonds, it can either gain 2 electrons to have a charge of -2 (answer c) or lose 2 electrons to have a charge of +2 (answer b).
5. Xenon (Xe): Xenon belongs to Group 8 on the periodic table, which means it has 8 valence electrons. Xenon is a noble gas and tends to not form bonds with other atoms. Therefore, it does not typically have a charge (answer a).
6. Carbon (C): Carbon belongs to Group 4 on the periodic table, which means it has 4 valence electrons. When carbon bonds, it can either gain 4 electrons to have a charge of -4 (answer h) or lose 4 electrons to have a charge of +4 (answer h).
7. Phosphorous (P): Phosphorous belongs to Group 5 on the periodic table, which means it has 5 valence electrons. When phosphorous bonds, it tends to gain 3 electrons, resulting in a charge of -3 (answer d).
8. Boron (B): Boron belongs to Group 3 on the periodic table, which means it has 3 valence electrons. When boron bonds, it tends to lose 3 electrons, resulting in a charge of +3 (answer e).
To summarize:
Calcium (Ca): +2 (b)
Francium (Fr): +1 (f)
Bromine (Br): -1 (f)
Sulfur (S): -2 (c) or +2 (b)
Xenon (Xe): 0 (a)
Carbon (C): -4 (h) or +4 (h)
Phosphorous (P): -3 (d)
Boron (B): +3 (e)
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Final answer:
Using the quadratic equation h = -16t² + 264 which represents the object's height after time, we find that it will take 4 seconds for the object to reach 8 feet above the valley floor.
Explanation:
In this case, you're asked to find out how much time it takes for an object dropped from an observation deck to drop to a point 8 feet above the valley floor. The height h, in feet, after time t, in seconds, is represented by the quadratic equation h = -16t² + 264. Set the equation equal to desired height, which is 8 feet in this case. So, you have -16t² + 264 = 8. Rearranging, you get -16t² = 8 - 264, or -16t² = -256. Divide by -16 yields, t² = 16. The principal square root of 16 is t = 4.
Therefore, it will take 4 seconds for the object to be 8 feet above the valley floor.
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f(x)=2x^2-5x-3
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Given: Isosceles trapezoid TRAP with TR=PA
Prove: Angle RTA = angle APR
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