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Questions in Grade College

[Free] Which of the following are the values that are the solution of [tex]x^2+20=12 x[/tex]? Choose two correct answers. [tex]x=10[/tex] [tex]x=2[/tex] [tex]x=-10[/tex] [tex]x=-2[/tex]

[Free] Alice Correa bought three yards of cloth to make a dress. The cloth was on sale for $1.93 per yard. How much did Alice pay for the cloth if the sales tax was 5%?

[Free] Which is a function of bone? A. nerve cell regeneration B. protection of organs C. storage of glycogen D. filtration of blood

[Free] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Free] Making sure that children have hands-on activities and chances to act upon their environment refers to A. natural consequences B. child engagement C. punishment D. encouragement

[Free] What is the quadratic regression equation that fits these data? | x | y | | --- | -- | | -4 | 40 | | -3 | 28 | | -2 | 10 | | -1 | 8 | | 0 | 7 | | 1 | 10 | | 2 | 16 | | 3 | 26 | | 4 | 40 | A. [tex]y=1.64 x^2+1.24 x+8.08[/tex] B. [tex]y=16.76 \cdot 1.02^x[/tex] C. [tex]y=2.13 x^2+0.13 x+6.39[/tex]

[Free] Allegiant issues $5\%, 20$-year bonds with a par value of $[tex]2,000,000[/tex] and semiannual interest payments. In each separate situation, determine whether the bond is issued at par value, at a discount, or at a premium. | Situation | Bond issued | |---|---| | 1. Market rate for the bond is $4 \%$. | | | 2. Market rate for the bond is $5 \%$. | | | 3. Market rate for the bond is $6 \%$. | |

[Free] Janet made a shirt using $\frac{5}{8}$ yards of blue fabric and $\frac{1}{2}$ yards of yellow fabric. How many more yards of blue fabric did she use? Write your answer as a fraction in simplest form.

[Free] For the equation [tex]BaCl _2+ Na _2 SO _4 \rightarrow BaSO _4+2 NaCl[/tex], how many chlorine atoms are on the reactants side and on the products side? A. reactants: 1 ; products: 1 B. reactants: 1 ; products: 2 C. reactants: 2 ; products: 1 D. reactants: 2 ; products: 2

[Free] Perform the indicated operation. Simplify if possible. [tex]\frac{9 x}{x+9}-\frac{4 x-45}{x+9}[/tex]