Numerade

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to make 1.0 L of a 10 g NaCl/L solution, 10 g of NaCl is weighed and poured into a volumetric flask. What is the next step?

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A homeowner's KWH used in July increased 21% from their June usage of 547 KWH. What was the total KWH used in July?

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by some other method. f(t) = -2t³ + 2t f has a relative maximum at the critical point t = -0.5 (smaller t-value) f has a relative minimum at the critical point t = 0.5 (larger t-value)

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Find the derivative of the function. y = -9x \ln (6x + 5) \frac{dy}{dx} = \square

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3. For a saturated solution of AgBr, the molar solubility is equal to A) 1/2 [Ag$^+$] or 1/2 [Br$^-$] B) [Ag$^+$] or [Br$^-$] C) 2 x [Ag$^+$] D) 2 x [Br$^-$] 4. For a saturated solution of Ba$_3$(PO$_4$)$_2$, the molar solubility is equal to A) 3 [Ba$^{2+}$] or 1/2 [PO$_4^{3-}$] B) 3 [Ba$^{2+}$] or 2 [PO$_4^{3-}$] C) 1/3 [Ba$^{2+}$] or 1/2 [PO$_4^{3-}$] D) [Ba$^{2+}$] or [PO$_4^{3-}$]

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(8) The difference of the two triangular numbers $ t_{9 n+4} $ and $ t_{3 n+1} $ is always a square of an odd multiple of 3. In fact, $ t_{9 n+4}-t_{3 n+1}=[1+2+\cdots+(9 n+4)]-[1+2+\cdots+(3 n+1)]= $ $ \frac{(9 n+4)(9 n+5)}{2}-\frac{(3 n+1)(3 n+2)}{2}=[3(2 n+1)]^{2} $, where $ 2 n+1 $ is an odd number.

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The time it takes for seed of a certain variety to germinate is normally distributed with a mean of 120 hours and a standard deviation of 20 hours. A random sample of 16 seeds is taken. What is the probability that the average time for germination for 16 seeds exceeds 115.80 hours?

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3. Let $f(x) = 5x^2 + 1$. Compute $f'(3)$ using the limit definition of derivative.

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Ex.7.3. Prove that the cone {(x, y) ∈ R^3 | z = √(x^2 + y^2)} ⊆ R^3 is not a manifold. Ex.7.4. If X ⊆ R^m and Y ⊆ R^n are manifolds whose dimensions are d1 and d2, prove that X × Y = {(p1, p2) ∈ R^m × R^n | p1 ∈ X, p2 ∈ Y} is a (d1 + d2)-dimensional manifold.

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Problem 4-25A (Algo) Basic transactions for three accounting cycles: Perpetual system LO 4-1, 4-6 Blooming Flower Company was started in Year 1 when it acquired $60,600 cash from the issue of common stock. The following data summarize the company's first three years' operating activities. Assume that all transactions were cash transactions. Purchases of inventory Sales Cost of goods sold Selling and administrative expenses Year 1 $\ 23,300$ Year 2 $\ 10,200$ Year 3 $\ 18,700$ 27,700 30,700 36,500 11,700 16,700 18,500 5,380 8,070 9,150 Required Prepare an income statement (use multistep format) and balance sheet for each fiscal year. (Hint: Record the transaction data for each accounting period in the accounting equation before preparing the statements for that year.) Complete this question by entering your answers in the tabs below. Income Statements Balance Sheets Prepare a balance sheet for each fiscal year. (Hint: Record the transaction data for each accounting period in the accounting equation before preparing the statements for that year.)

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john m.