Answer:
a
Step-by-step explanation:
20-9=11
Answer:
Step-by-step explanation:
Table
<h3>x I y</h3><h3>-------</h3><h3>1 I 2</h3><h3>2 I 4</h3><h3>3 I 6</h3><h3>4 I 8</h3><h3>5 I 10</h3>
For a better understanding of the solution given here please find the attached file which has the relevant diagram.
To answer this question we will have to make use of <u>the Isosceles Triangle Theorem</u> which states that the perpendicular bisector of the base of an isosceles triangle is also the angle bisector of the vertex angle. Thus, as a corollary we know that is EF is the angle bisector of the vertex angle ∠E, then, EF is the perpendicular bisector of the of the base DK.
Please follow the diagram of a complete understanding of the logic and the solution.
As EF is the angle bisector as given in the question, thus we will have:
.
Also, from the Theorem we know that KF will be half of DK and thus, KF will be:
centimeters.
Likewise, from the same theorem we have: 
Answer:
She gets
Step-by-step explanation:
She gets an error message because when solving a linear equation, the coefficient of the variable is not meant to be the same on both sides of the equation because it will equal 0 in the end. In this equation, you will get 4x on both sides and then the last step will be 0= 3. This is an error.
<h2>
The circle (x − 7)² + (y − 8)² = 9 is a circle with center (7,8) and radius is 3</h2>
Step-by-step explanation:
Equation of circle with (h,k) as center and radius r is given by,
(x-h)²+(y-k)² = r²
Here we need to describe the circle given by the equation (x − 7)² + (y − 8)² = 9
Changing equation to (x-h)²+(y-k)² = r² form
(x − 7)² + (y − 8)² = 9
(x − 7)² + (y − 8)² = 3²
So, h = 7 , k = 8 and r = 3
Center is (7,8) and radius is 3
The circle (x − 7)² + (y − 8)² = 9 is a circle with center (7,8) and radius is 3