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Questions in Grade College

[Terjawab] $8 \frac{1}{4}+2 \frac{1}{2}=$

[Terjawab] The initial tableau of a linear programming problem is given. Use the simplex method to solve the problem. [tex] \left[\begin{array}{rrrrrrr}x_1 & x_2 & s_1 & s_2 & s_3 & z & \\ 1 & 2 & 1 & 0 & 0 & 0 & 14 \\ 4 & 1 & 0 & 1 & 0 & 0 & 32 \\ 1 & 1 & 0 & 0 & 1 & 0 & 4 \\ \hline-4 & -3 & 0 & 0 & 0 & 1 & 0\end{array}\right] [/tex] The maximum is $\square$ when [tex]$x _1=$[/tex] $\square$ , [tex]$x_2=$[/tex] $\square$ , [tex]$s _1=$[/tex] $\square$ , [tex]$s _2=$[/tex] $\square$ , and [tex]$s _3=$[/tex] $\square$. (Type integers or simplified fractions.)

[Terjawab] Use the distributive property to solve the following: (a) [tex]$650 \times 267$[/tex] (b) [tex]$7,634 \times 123-7,634 \times 3$[/tex] (c) [tex]$456 \times 230$[/tex] (d) [tex]$625 \times 3+2 \times 25 \times 18$[/tex] (e) [tex]$34,645 \times 309-34,645 \times 9$[/tex]

[Terjawab] The density of a fish tank is $0.3 \frac{\text { fish }}{\text { feet }^3}$. There are 15 fish in the tank. What is the volume of the tank? A. $5 ft ^3$ B. $45 ft ^3$ C. $50 ft ^3$ D. $90 ft ^3$

[Terjawab] A line segment has endpoints at $(-4,-6)$ and $(-6,4)$. Which reflection will produce an image with endpoints at $(4,-6)$ and $(6,4)? A. a reflection of the line segment across the $x$-axis B. a reflection of the line segment across the $y$-axis C. a reflection of the line segment across the line $y=x$ D. a reflection of the line segment across the line $y=-x

[Terjawab] Find the value of the expression: [tex]$10^{15} \div 10^{12}$[/tex]

[Terjawab] Compute: $-3 \cdot 2^5$

[Terjawab] What happens when the electron moves from the first energy level to the second energy level?

[Terjawab] What is the relationship between the development of trade and the development of technology? A. The developments of trade and technology are not related. B. A region can only trade if it has modern transportation technology. C. Regions that want to develop trade avoid the development of technology. D. The development of technology can encourage the advancement of trade.

[Terjawab] Find the $y$-intercept and $x$-intercept of the line. $-x+2 y=2$