Geometry Help Please! <br>Find the measure of angle 3? <br>72°<br>60°<br>54°<br>36°

bixtya [17]

$\left\{\begin{array}{ccc}2x-3y=16&|\cdot2\\3x+2y=11&|\cdot3\end{array}\right\\\underline{+\left\{\begin{array}{ccc}4x-6y=32\\9x+6y=33\end{array}\right}\qquad\text{add both sides of equations}\\.\qquad13x=65\qquad|:13\\.\qquad x=5\\\\\text{put the value of x to the second equation}\\\\3(5)+2y=11\\15+2y=11\qquad|-15\\2y=-4\qquad|:2\\y=-2\\\\Answer:\ B)\ (5,\ -2).$

8 0

3 years ago

Based on the graph below, how would you describe the curve?

Vinil7 [7]

The best description of the curve of the given graph is called; A: Many to One Function

<h3>How to interpret function graphs?</h3>

A function is a relation in which each element is mapped to a single element i.e. no element is mapped to two different elements.

The given graph passes the vertical line test and as such we can say it is a function.

Also, the graph of a linear function is a straight line but the graph we are given is not a straight line and as such it is not a linear function.

Lastly, the graph does not passes the horizontal line test because between the interval from -1 to 0, the same value y-output is obtained many times and hence it is not a one-to-one function but a many to one function.

Read more about Function Graphs at; brainly.com/question/24335034

#SPJ1

3 0

1 year ago

determine if the sequence is geometric if it is find the common ratio the 8th term and the explicit formula can someone check my

mylen [45]

Answer:

You can check the answer by yourself after seeing the below answer.

Step-by-step explanation:

A sequence is geometric only if has common ratio i.e. $r=\frac{a2}{a1} =\frac{a3}{a2}$ whiere a1,a2 and a3 are first,second and third term of the sequence respectively.

1) Common ratio $r=\frac{-18}{-3}=\frac{-108}{-18}=6\\$

Explicit formula $a_{n} =a_{1} .r^{n-1}$

Now using the above formula, we can find $8^{th} term=-3*(6)^{8-1} =-3*6^{7}=-839808.$

2) Here

$\frac{a2}{a1}\neq \frac{a3}{a2}\\\frac{-2}{-4}\neq \frac{1}{-2}\\\frac{1}{2}\neq\frac{1}{-2}$ so this is not geometric sequence so no need to proceed further.