Proportional linear relationships can be represented in how many different forms

1 answer:

5 0

Linear relationships can be represented in several different ways: a graph, an equation, or a list of points. ... We can then graph the line to find the y-intercept, and use the slope and y-intercept to write an equation of the line.

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rosa made a Mosaic while using 42 black tiles 35 blue tiles and 23 red tiles write a percent to represent the number of red tile

Vlada [557]

23% because (42+35)+23=100. 42+35=77. 100-77=23.

4 0

3 years ago

Solve for x in the triangle A 25.6 B 27.8 C 45.6 D 64.4

labwork [276]

Answer:

The measure of angle x is $64.4\°$

Step-by-step explanation:

To find the measure of angle X, apply the law of cosines

The law of cosines states that

$c^{2}=a^{2}+b^{2}-2(a)(b)cos(C)$

In this problem we have

$a=19\ cm$

$b=25\ cm$

$c=24\ cm$

$C=x\°$

substitute

$24^{2}=19^{2}+25^{2}-2(19)(25)cos(C)$

$576=986-950cos(C)$

$cos(C)=(986-576)/950$

$C=arccos[(986-576)/950]=64.4\°$

Therefore

The measure of angle x is $64.4\°$

7 0

4 years ago

Writing an equation of a probably given the vertex and focus

White raven [17]

The equation of the vertical parabola in vertex form is written as

$y=\frac{1}{4p}(x-h)^2+k$

Where (h, k) are the coordinates of the vertex and p is the focal distance.

The directrix of a parabola is a line which every point of the parabola is equally distant to this line and the focus of the parabola. The vertex is located between the focus and the directrix, therefore, the distance between the y-coordinate of the vertex and the directrix represents the focal distance.