<h2>
Answer: 15/2 aka 7.5</h2>
2x - 15 = 0 x = 15/2 aka 7.5
Hope this helps!
-zomba
Answer:
mean: 19
median: 22
mode: 5
range: 30
Step-by-step explanation:
hope this helps :)
Getting the central area of a polygon is not possible. Probably the question refers to the central angle. In a a regular polygon, getting the central angle is that you need to use the formula.
Central Angle of a polygon = 360 degrees / number of sides of a polygon.
Why 360 degrees? Because, a circle has a total of 360 degrees. And a circle is a polygon with no sides.
Answer:
12cm and 16cm
Step-by-step explanation:
The hypotenuse of the right angle triangle = 20cm
let the other two sides be x and y;
The difference;
x = y - 4
Problem:
Find x and y;
Solution:
According to the pythagoras theorem;
x² + y² = 20² ------ i
x² + y² = 400 ----- i
and x - y = 4 ---- ii
So; x = 4 + y
Now input the value into equation (i);
(y + 4)² + y² = 400
(y+4)(y+4) + y² = 400
y² + y² + 4y + 4y + 16 = 400
2y² + 8y + 16 = 400
2y² + 8y + 16 -400 = 0
2y² + 8y - 384 = 0;
y² + 4y - 192 = 0
Factorize the equation;
y² + 16y - 12y - 192 = 0
y(y + 16) - 12(y + 16) = 0
(y-12)(y + 16) = 0
y -12 = 0 or y+ 16 = 0
y = 12 or -16
It is not realistic for the length of a body to be a negative value, so y= 12;
since;
x - y = 4,
x = 4 + 12
x = 16
<h2>
Part a) </h2><h2>
Explain the error in this simplification.</h2>
Given the simplified expression
<u><em>Identifying the Main Error</em></u>
← ERROR Starts here
<u><em>Here is the Explanation of the Error </em></u>
<u><em /></u>
<u><em /></u>
<em>. </em>In your case you wrongly multiply the equation.
<em><u>CORRECTION</u></em>
<em>HERE IS HOW YOU SHOULD HAVE MULTIPLIED BY </em><em>LCM = (x-2)(x+2):</em>
<em />
<h2>
Part b) </h2><h2>
Show your work as you correct the error</h2>
Here is the complete correction of the error.
Considering the expression
