Answer:
A. (2,-1) b:2
Step-by-step explanation:
Answer:
Second option: 
Step-by-step explanation:
Let be "x" the number of candy bars Brady sold on Saturday.
For this exercise you need to analize the information provided in the exercise.
According to the information provided, Brady gets paid $2 for every candy bar he sells. This can be expressed as:
You know that Brady made a total of $90 on Saturday; this mean the product of is 90.
Based on this, you can write the following equation that represents the number of candy bars Brady sold on Saturday:
Observe that this matches with the second option.
sure. or u could google them...
Given:
Segment AC = 130 feet
Segment CD = 70 feet
I think that I'll be using the Pythagorean Theorem in finding the value of r. r will be the hypotenuse
Segment CE = (r - 70 feet)
r² = a² + b²
r² = 130² + (r-70)²
r² = 16,900 + (r-70)(r-70)
r² = 16,900 + r² - 70r - 70r + 4900
r² - r² + 140r = 16,900 + 4,900
140r = 21,800
r = 21,800/140
r = 155.71 feet
The radius of the circle is 155.71 feet.
Answer:
$9$
Step-by-step explanation:
Given: Thea enters a positive integer into her calculator, then squares it, then presses the $\textcolor{blue}{\bf\circledast}$ key, then squares the result, then presses the $\textcolor{blue}{\bf\circledast}$ key again such that the calculator displays final number as $243$.
To find: number that Thea originally entered
Solution:
The final number is $243$.
As previously the $\textcolor{blue}{\bf\circledast}$ key was pressed,
the number before $243$ must be $324$.
As previously the number was squared, so the number before $324$ must be $18$.
As previously the $\textcolor{blue}{\bf\circledast}$ key was pressed,
the number before $18$ must be $81$
As previously the number was squared, so the number before $81$ must be $9$.
