Hi,

$18x^2+36y^2=648\\

\Rightarrow ( \dfrac{x}{6})^2+( \dfrac{y}{3* \sqrt{2} } )^2=1\\

a=6,\ b=3* \sqrt{2}\\

c= \sqrt{a^2-b^2} = \sqrt{36-18} =3* \sqrt{2}\\

$
Center is (0,0)
Foci are (-3√2,0) and (3√2,0)

7 0

3 years ago

Read 2 more answers

Translation of a 2D shape..<br> Due in tomorrow, please help! Xx

bazaltina [42]

(5,7) (5,4) (7,4) hope that helps

4 0

4 years ago

A salesman is paid a salary of $2500 per month and a commission of 10% on all sales above $7000. Calculate his gross salary if h

Verizon [17]

Answer:

$4150

Step-by-step explanation:

Given data

Salary= $2500

Commission= 10%

Sales= $16500

Let us find the amount of the commission made

=10/100*16500

=0.1*16500

=$1650

Hence the total amount made for the month is

=commission + salary

=1650+2500

=$4150

3 0

3 years ago

If the perimeter of a rectangle is 78 inches and the length is 13 inches more than its​ width, find the area of the rectangle.

If the perimeter of a rectangle is 78 inches and the length is 13 inches more than its width, find the area of the rectangle.