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Recent Questions

In **Medicine** / **College** | 2025-07-03

[Open]In a patient with a central venous catheter, which factor increases the risk of CLABSI (Central Line-Associated Bloodstream Infection)? Select all that apply. A. Receiving parenteral nutrition B. Having a single lumen catheter C. Having a multilumen catheter D. Receiving antibiotics

In **Computers and Technology** / **High School** | 2025-07-03

[Open]What feature of a computer program allows it to function on various platforms?

In **Business** / **College** | 2025-07-03

[Open]At annuitization, what pay-out options are available from a variable annuity? A. Joint and survivor only B. The same options that are available on fixed annuities. C. Life annuity only D. Period certain only

In **Mathematics** / **College** | 2025-07-03

[Open]Simplify: [tex]$\frac{6 x^5-2 x-4}{2 x}$[/tex]

In **English** / **College** | 2025-07-03

[Open]If an essay draws upon legal records or contracts to substantiate a claim, which common topic is it based on? A. comparison B. definition C. relationship D. testimony

In **Social Studies** / **High School** | 2025-07-03

[Open]Which is the best method for a senator to have power in making legislation? A. serving on a committee B. meeting with constituents C. meeting with state officials D. confirming federal appointments

In **Mathematics** / **College** | 2025-07-03

[Open]A standard deck of cards contains 52 cards. One card is selected from the deck. (a) Compute the probability of randomly selecting a heart or club. (b) Compute the probability of randomly selecting a heart or club or spade. (c) Compute the probability of randomly selecting a four or spade.

In **Chemistry** / **High School** | 2025-07-03

[Open]Check the correct answer. Which of the following bears a diatomic molecule? i. Helium ii. Nitrogen iii. Sulphur iv. Phosphorus Which of the following is a chemical change? i. Melting of ice ii. Breaking a stone iii. Burning coal iv. Boiling of water Which of the following is an exothermic reaction? i. [tex]$CaO + H _2 O \longrightarrow Ca ( OH )_2$[/tex] ii. [tex]$2 KClO _3 \longrightarrow 2 KCl +3 O _2$[/tex] iii. [tex]$N _2+ O _2 \longrightarrow 2 NO$[/tex] When a piece of granulated zinc was added into the test tube containing dilute HCl, a gas was produced. What gas is it? i. Carbon dioxide ii. Ammonia iii. Oxygen iv. Hydrogen What does the symbol ([tex]$\rightleftharpoons$[/tex]) represent? i. Reactant ii. Product iii. Endothermic reaction iv. Reversible reaction What gas will be produced if [tex]$KClO _3$[/tex] is heated? i. Hydrogen ii. Oxygen iii. Chlorine iv. Potassium If limestone is heated, what will be the products? i. [tex]$Ca ( OH )_2+ O _2$[/tex] ii. [tex]$CaO + CO _2$[/tex] iii. [tex]$CaO + O _2$[/tex] iv. [tex]$KCl + O _2$[/tex]

In **Mathematics** / **High School** | 2025-07-03

[Open]The number of days required to make shirts is proportional, as shown in the table below: | Factory | Number of Days | Number of Shirts | |---|---|---| | A | 2 | 600 | | B | 3 | 900 | | C | 4 | 1200 | | D | 5 | 1500 | Factory E can make shirts at the same rate as the first four factories. Which table(s) could represent the production rate of factory E? | Factory | Number of Days | Number of Shirts | |---|---|---| | E | 1 | 400 | | Factory | Number of Days | Number of Shirts | |---|---|---| | E | 1 | 300 | | Factory | Number of Days | Number of Shirts | |---|---|---| | E | 6 | 1,800 |

In **Mathematics** / **College** | 2025-07-03

[Open]Given any triangle [tex]$A B C$[/tex] with corresponding side lengths [tex]$a, b$[/tex], and [tex]$c$[/tex], the law of cosines states: A. [tex]$c^2=a^2+b^2-2 a b \cos (C)$[/tex] B. [tex]$c^2=a^2+b^2-2 b c \cos (B)$[/tex] C. [tex]$c^2=a^2-b^2-2 b c \cos (C)$[/tex] D. [tex]$c^2=a^2+b^2-2 b c \cos (A)$[/tex]