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tony hernandez

tony h.

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What is the name of N$_2$O$_4$? A nitrogen (II) oxide B nitrogen oxide C nitrous oxide D dinitrogen tetraoxide E nitrogen tetraoxide

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what would happen to the ecosystem in the arctic ocean without walruses

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``Explain the concept of quantum entanglement and its applications in quantum information theory____⁉️

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2. Find the equation of the tangent plane to each surface at the location with the given information. (a). $z = Axy^3 - Bx^4y^2$, when $x = 1$ and $y = -1$. (b). $5x^2y^3z^3 - 37 = 3x + 2y - 4z$ at $(1, 2, 1)$.

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An aqueous solution has a H30 ion concentration of 1.5x10-6 M at 25 degrees. what is the hydoxide ion concentration in the solution

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Find the vertex of the parabola defined by y = 4x^2+ 3x + 2.

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Find the real general solution of the differential equation \(2y'' - 4y' + 7y = 0\)

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You have been asked to estimate the market value of a residential property using the Market Comparison Approach. The subject property is a single-family home; it is a 2 storey frame house which is 70 years old and in relatively good condition. It has a detached garage, 3 bedrooms, and a fireplace. It also has a finished basement. The following comparable sales are located in the same neighbourhood. They have approximately the same size homes and lot sizes and are in the same condition as the subject: Sale #1 -Sold 4 months ago for $880,000. Has a detached garage, a fireplace, 3 bedrooms, an updated kitchen, upgraded heating and air-conditioning and a finished basement. Sale #2 -Sold 6 months ago for $865,000. Has no garage, a fireplace, 3 bedrooms, an updated kitchen, upgraded heating and air-conditioning and an unfinished basement. Sale #3 -Sold 4 months ago for $855,000. Has no garage, a fireplace, 3 bedrooms, an updated kitchen, upgraded heating and air-conditioning and an unfinished basement. Sale #4 -Sold 6 months ago for $873,000. Has a detached garage, no fireplace, 3 bedrooms, an updated kitchen, upgraded heating and air-conditioning and an unfinished basement. Sale #5 -Sold last week for $845,000. Has a detached garage, a fireplace, 3 bedrooms, an updated kitchen, upgraded heating and air-conditioning and an unfinished basement.

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Variations in the pH of blood can lead to cell damage and disrupted cellular functions. Therefore, the body has mechanisms to maintain this pH in a very tight range, which is close to "neutral." Which of the following numbers is called "balanced," or "neutral," on the pH scale? a. 1 b. 7 c. 3 d. 14

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A researcher is interested in investigating whether the military branch a person signs up for and the person's blood type are dependent. The table below shows the results of a survey. Frequencies of Military Branch and Blood Type O A B AB Army 121 54 50 22 Navy 138 83 48 23 Air Force 128 81 62 20 Marines 100 85 62 24 What can be concluded at the $\alpha = 0.10$ significance level? a. What is the correct statistical test to use? Paired t-test Chi-square Test of Independence One sample t-test Two Sample t-test b. What are the null and alternative hypotheses? $H_0$: The distribution of blood types is the same for each branch of the military. Blood type and branch of the military are dependent The distribution of blood types is not the same for each branch of the military. Blood type and branch of the military are independent. $H_1$: The distribution of blood types is not the same for each branch of the military. Blood type and branch of the military are independent. Blood type and branch of the military are dependent The distribution of blood types is the same for each branch of the military. c. The test-statistic for this data = ______(Please show your answer to three decimal places.) d. The p-value for this sample = ______(Please show your answer to four decimal places.) e. The p-value is Select an answer $\alpha$ f. Based on this, we should

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