Questions in Grade High-school

Questions in Grade High-school

[Done] Read the sentences carefully. Example: A motorbike is faster than a bicycle. A bicycle is not so fast as a motorbike. Frame similar sentences using these words. 1. Iron is the harder metal than gold. 2. A sofa is more comfortable than a bench. 3. Venus is brighter than Pluto. 4. The red bag is bigger than the blue bag. 5. Gold is costlier than silver.

[Done] Why is hail formed in this portion of the cloud? Choose one or more: A. Updrafts keep particles higher in the cloud. B. Temperatures are just right to allow water to melt and then refreeze into balls. C. Temperatures are low enough in the cloud to melt any ice particles that form. D. Temperatures are low enough to supercool water droplets.

[Done] Which best describes an acquired trait? A. An acquired trait is encoded in the DNA. B. An acquired trait is passed from parent to offspring. C. An acquired trait is not affected by one's peers. D. An acquired trait is developed during one's lifetime.

[Done] Which numbers complete the blanks when solving the equation [tex]$\cos (x+2 \pi)=-\frac{\sqrt{2}}{2}$[/tex] over the interval [tex]$[0,2 \pi]$[/tex]? [tex]$\cos x \cdot \ldots-\sin x \cdot \ldots=-\frac{\sqrt{2}}{2}$[/tex] A. 1; 0 B. [tex]$0 ; 1$[/tex] C. -1 ; 0 D. [tex]$0 ;-1$[/tex]

[Done] The half-life of a particular radioactive substance is 1 minute. If you started with 375 grams of this substance, how much of it would remain after 5 minutes? Remaining Amount $= I (1-r)^{ t }$ [?] grams Round your answer to the nearest whole number.

[Done] Consider these two statements regarding the equation [tex]$PCl _5(g) \rightleftharpoons PCl _3+ Cl _2+$[/tex] heat: Statement 1: Adding heat to this reaction mixture would increase the reverse reaction. Statement 2: Cooling this reaction mixture would increase the forward reaction. A. Statements 1 and 2 are both true. B. Statement 1 is true, and statement 2 is false. C. Statements 1 and 2 are both false. D. Statement 1 is false, and statement 2 is true.

[Done] Determine the range values from an equation. Consider the functions [tex]f(x)=\left(\frac{4}{5}\right)^x[/tex] and [tex]g(x)=\left(\frac{4}{5}\right)^x+6[/tex]. What are the ranges of the two functions? [tex]\begin{array}{l} f(x):\{y \mid y\ \textgreater \ [/tex] [tex]g(x):\{y \mid y\ \textgreater \ [/tex]

[Done] There are two subclasses of ASHRAE Standard 34, A2L and B2L. The capital "L" is used to indicate A. Lower flammability B. Lower toxicity C. Higher flammability D. Higher toxicity

[Done] Fill in the blanks. (i) 1,381 x 74 = _ x 1,381 (ii) _ x 67 = 67 x 1,287 (iii) 7,635 x _ = 7,635 (iv) 6,081 x 28 = _ x 6,081 Name the property. (i) 1,438 x 713 = 713 x 1,438 (ii) 2,317 x 0 = 0 (iii) 1,432 x (8 x 15) = (1,432 x 8) x 15 (iv) 4,135 x (10 + 9) = 4,135 x 10 + 4,135 x 9 Fill in the blanks. (i) 4,379 x 10 = _ (ii) 8,376 x 100 = _ (iii) 4,518 x 10 = _ (iv) 98 x 1,000 = _ (v) 94 x 1,000 = _ (vi) 1,000 x 45 = _

[Done] Which row describes the changes to the atoms when a metal and a non-metal react together? | | Metal atoms | Non-metal atoms | |---|---------------------------------|-----------------------------------| | A | Gain electrons to form anions | Lose electrons to form cations | | B | Gain electrons to form cations | Lose electrons to form anions | | C | Lose electrons to form anions | Gain electrons to form cations | | D | Lose electrons to form cations | Gain electrons to form anions