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Questions in Grade College

[Free] Perform the following additions and/or subtractions: $\left(8 h^4-2 h-4\right)-\left(-7 h^4+6 h+5\right)=$ $\square$

[Free] Among adults, which of the following is true about touch behavior? A. None of these statements is true. B. In same-sex pairs, men touch each other just as much as women do. C. Women touch men more than men touch women. D. Opposite-sex touch is more common than same-sex touch.

[Free] The device that shuts off an electrical circuit if there is current leakage is known as a:

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

[Free] Find the vertical asymptotes of the rational function. [tex]h(x)=\frac{-3 x^2}{x^2+5 x-14}[/tex]

[Free] $a ^m \cdot a ^n= a ^{m+n}$, where a is a real number and m and n are integers. Use the product of powers property to simplify the expression $-2 x^3 y^4 x^2 y^3$. A. $-2(x y)^{12}$ B. $-2(x y)^{72}$ C. $-2 x^6 y^{12}$ D. $-2 x^5 y^7$

[Free] What is the simplest form of the expression $(-11.7 y-3.3 x)+1.2 x+(5.2 y+x)?

[Free] The magnitude of vector $u$ is 34, and the magnitude of vector $v$ is 20. The dot product $u \cdot v =-10$. What is the approximate angle between the vectors? A. $79^{\circ}$ B. $89^{\circ}$ C. $91^{\circ}$ D. $101^{\circ}$

[Free] Based on the University of Washington criteria, a peak systolic velocity > 125 cm/s and an end-diastolic velocity of 47 cm/s in an ICA are consistent with stenosis of: a. ≥ 80 percent b. ≥ 50 percent c. <50 percent d. ≥ 70 percent

[Free] Subtract these two fractions: [tex]$\frac{9}{7}-\frac{1}{2}=?$[/tex]