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andre smith

andre s.

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What type of play, common among school-age children, helps develop coordination, agility, strategy, and problem-solving skills? Collections Games with rules Dramatic play Play rituals

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Fill in the blanks below to make a true statement. In a binomial experiment with n trials and probability of success p, if np = [ ] the binomial random variable X is approximately normal with ?x = [ ] and ?x = [ ]

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Given that the average value of a function $f(x)$ over the interval $[4, 10]$ is $\frac{17}{5}$, then evaluate $\int_4^{10} f(x) \, dx$. $\frac{30}{17}$ $\frac{102}{5}$ $\frac{17}{30}$ $\frac{102}{5}$ $\frac{30}{17}$

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two speakers are distance 2.0 m apart along the x axis, with one speaker at x=o and other at x=2.0m. The speakers emit waves at frequency 220Hz and are totally out of phase with each other. If you walked along the x axis between the speakers, at which positions would you hear the maximum sound intensity?

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Find the scalar equation of the plane that passes through the origin and the line of intersection of the planes 3x + 4y – 7z – 2 = 0 and 2x + 3y + z – 4 = 0.

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Why is rubisco considered to be the most important enzyme in earth?

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28 Be sure to answer all parts. Give the oxidation number of chromium in the following: (a) CrO$_3$ (select) (b) Cr$_2$O$_7$$^{-2}$ (select) (c) Cr$_2$(SO$_4$)$_3$ (select)

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4 ? 8 ? 4 A 2 ? 6 ? i 30 V 3 ? 1 ?

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9. Average total cost is $520 for the quantity being produced. 140. What is produced when labor is 9 and capital is 16? 11. Suppose Bill views butter and margarine as perfectly substitutable for each other. His utility function is U(b,m) = bm. Are these indifference curves convex (draw indifference curve with given information above)? And why? 12. Suppose a firm has a cost function C(q) = 4q^2 + 16. a. Find its variable cost, fixed cost, average total cost, average fixed cost, average variable cost. b. Find the output level that minimizes average total cost and corresponding value of average total cost (ATC) where marginal cost is 8q (MC = 8q).

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(9) Let $f: E \to F$, $B, B_1, B_2 \subset F$. (a) Show that $f^{-1}(B_1 \cup B_2) = f^{-1}(B_1) \cup f^{-1}(B_2)$, $f^{-1}(B_1 \cap B_2) = f^{-1}(B_1) \cap f^{-1}(B_2)$. (b) Show that $f(f^{-1}(B)) \subset B$. Give a necessary and sufficient condition on $f$ so that we have equality. (c) Compare $f^{-1}(F \setminus B)$ and $E \setminus f^{-1}(B)$.

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