HRS - Ask. Learn. Share Knowledge. Logo

Questions in Grade College

[Done] Factor. $y^2+7 y-18$

[Done] Which is the central element for all living things? A. carbon B. hydrogen C. oxygen D. nitrogen

[Done] Which American wrote A Farewell to Arms and The Sun Also Rises?

[Done] Select the best answer for the question. 18. Find the value of [tex]$Z$[/tex] in the following equation: [tex]$8 Z =64$[/tex]. A. 512 B. 56 C. 8 D. 72

[Done] Consider the following function. [tex]u(x)=\frac{3}{4 x}[/tex] Step 2 of 2: Find two points on the graph of this function, other than the origin, that fit within the given [-10,10] by [-10,10] grid. Express each coordinate as an integer or simplified fraction, or round to four decimal places as necessary.

[Done] Answer each question below. Estimate any irrational answers to two decimal places. 19. If [tex]$x=4 \cos \theta$[/tex] and [tex]$y=4 \sin \theta$[/tex], then [tex]$\sqrt{x^2+y^2}=$[/tex] ?

[Done] Annual high temperatures in a certain location have been tracked for several years. Let [tex]$X$[/tex] represent the year and [tex]$Y$[/tex] the high temperature. Based on the data shown below, calculate the regression line (each value to two decimal places). [tex]$y=$[/tex] x + | x | y | |---|---| | 5 | 16.65 | | 6 | 18.5 | | 7 | 19.45 | | 8 | 17.8 | | 9 | 17.35 | | 10 | 16.2 |

[Done] Multiply. Simplify if possible. a) $(8+\sqrt{13})^2=$ $\square$ b) $(-8+2 \sqrt{13})^2=$ $\square$ Note: To input $a \sqrt{b}$ type "a sqrt(b)". To input $a \sqrt[b]{c}$ type "a root(b)(c)".

[Done] Identify the correct inverse trigonometric function to use to solve for the given angle. a. [tex]$\tan ^{-1}(3.83)$[/tex] b. [tex]$\sin ^{-1}(3.83)$[/tex] c. [tex]$\cos ^{-1}(.26)$[/tex] d. [tex]$\sin ^{-1}(.26)$[/tex]

[Done] Find the solution to the system of equations. Round to the nearest tenth if necessary. [tex] \begin{array}{l} f(x)=3 x+6 \\ g(x)=x^2+4 x+1 \end{array} [/tex]