Syst em A -x+2y=-8 x-2y=-8 The system has no solution. The system has a unique solution: (x,y)=(square ,square ) The system has infinitely many solutions. They must satisfy the following equation: y=square

If $\int _{a}^{b}f(x)dx=\int _{-9}^{-2}f(x)dx+\int _{-2}^{2}f(x)dx-\int _{-9}^{-5}f(x)dx$ what are the bounds of integration for the first integral? $a=$ $\square $ and $b=$ $\square $

Find the area between the two curves $y=2x$ and $y=x^{2}-15$ from $x=-3$ to $x=3$ The area between the curves is $\square $ fType an integer or a fraction.)

Use the distributive property to remove the parentheses. $(10w^{2}-7w^{3}+5)3w^{4}$ Simplify your answer as much as possible. $\square $

Dark Green: $13s-r^{2}$ if $r=9$ and $s=6$

Determine the value or values of the variable for which the following expression is defined. $\frac {x-8}{x}$ Select the correct choice below and, if necessary,fill in the answer box to complete your choice. A. The expression is defined for all real numbers except $x=\square $ (Use a comma to separate answers as needed .) B. The expression is defined for all real numbers.

Instructions: Solve the following systems of equations algebraically. If there are no real solutions, type "none" in both blanks.If there is only one, type "none" in the other blank. I(I/eft\{\begin{array)\{ $3y=3x-3\Vert y=x^{\wedge }2+5x-2\vert $ end{array) Iright.D 1(10 $\square $ 160 $\square $ 100 $\square $ 1(1) $\square $ lov I(I/eftil/begin(array)fl]y=-2 x-7||y=x 2 +4x-2|end{array)lright.V) (1) $\square $ $\square $ 10 (1) $\square $ 16-5 I(IIeft\{1begin(array)fl]y=2 x-7||y=x~2+3x-1 (end(array) (right.) 1(1) $\square $ 16 $\square $ 10 (1) $\square $ ICD $\square $ lov

Simplify: $\sqrt {380}$ $2\sqrt {95}$ $3\sqrt {95}$ - $4\sqrt {19}$ $10\sqrt {19}$

Factor completely. $3x^{2}-3x-90$ $\square $

Assume that when adults with smartphones are randomly selected, $54\% $ use them in meetings or classes. If 15 adult smartphone users are randomly selected, find the probability that exactly 11 of them use their smartphones in meetings or classes. The probability is $\square $ (Round to four decimal places as needed.)

Write the quotient in simplest form. $2m+3\longdiv {4m^{3}+2m^{2}-4m+3}$ A. $2m+m-1$ B. $2m-m-1$ C. $2m^{2}-2m+1$ D. $2m^{2}+2m-1$ Please select the best answer from the choices provided A B C D