15-2x
A number is a variable so use a letter like x for them
Your Question:
A number that is formed by repeated multiplication by the same factor is a(n)___.
My Answer:
If a number is multiplied by the same number "x" number of times, it would result in an Exponent; a quantity representing the power to which a given number or expression is to be raised.
Example:
<span>5² = 5 • 5.
Hope I helped you,
♥ James.
</span>
Answer:
Step-by-step explanation:
Point (-7,-2) is the center of dilation. The scale factor is 2.
If point A has coordinates (-3,-2), then its image point H has coordinates (1,-2).
If point B has coordinates (-6,2), then its image point E has coordinates (-5,6).
If point C has coordinates (-4,3), then its image point F has coordinates (-1,8).
If point D has coordinates (-1,1), then its image point G has coordinates (5,4).
Answer D because you want to get the x by itself and in order to do this she needs to multiply by -4 so that one side only has x.
Answer:
Step-by-step explanation:
∠1 and ∠2 are vertical angles.
∠1 = ∠2
<u>Part A:</u>
<u></u>
Create an equation and solve for x.
20x + 21 = 30x - 29
Add 29 and -20x on both sides.
20x + 21 + 29 - 20x = 30x - 29 + 29 - 20x
Simplify the equation.
50 = 10x
Divide both sides by 10.
=
Simplify the equation.
5 = x
Switch sides.
x = 5
<u>Part B:</u>
<u></u>
Let x = 5
20(5) + 21
Distribute.
100 + 21
Add.
= 121
Since both angles are vertical angles, they are equal.
∠1 = 121°
∠2 = 121°