An expression is shown.



2.1×105 + 4.3×104



Which expression is equivalent?

A

2.53×104

B

2.53×105

C

6.4×105

D

6.4×109

25.3 × is the equivalent expression

Step-by-step explanation:

In this question, we are asked to select from the options the expression that is equivalent to the written expression.

2.1 ×  + 4.3 *

Now, we can factor out .

This gives;

{[2.1 × 10] + 4.3}

( 21 + 4.3)

= × 25.3

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: