Mathematics, 28.04.2021 19:30 emo239
The approximate molar concentration of several chemicals are given. Find the pH of each. Use the calculator and round to the nearest tenth, if necessary. Oven cleaner: [H+] = 10−13 pH = Water: [H+] = 0.0000007 pH = Blood: [H+] = 0.00000004 pH = Vinegar: [H+] = 0.0063 pH =
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Which linear equations have an infinite number of solutions? check all that apply. (x – 3/7) = 2/7(3/2x – 9/14)8(x + 2) = 5x – 1412.3x – 18 = 3(–6 + 4.1x)(6x + 10) = 7(x – 2)4.2x – 3.5 = 2.1 (5x + 8)
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The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left
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The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)
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The approximate molar concentration of several chemicals are given. Find the pH of each. Use the cal...
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