Answer:
r=1
Step-by-step explanation:
-4 r -10r + -5= -19
-4r + (-10r) + -5=-19
-14r+ -5 = -19
-14r + -5 +5= -19+5
-14r= -14
r=1
Answer:
Center is at (0,0)
Step-by-step explanation:
An equation of ellipse in standard form is:

Where center is at point (h,k)
From the equation of
. First, we add 45 both sides:

Convert into the standard form with RHS (Right-Hand Side) equal to 1 by dividing both sides by 45:

Therefore, the center of ellipse is at (0,0) since there are no values of h and k.
Answer:
Step-by-step explanation:
3.72 x 10-7
(Scientific Notation)
3.72 x 10^-7
(use the caret symbol [^] to type or write)
3.72E-7
(Scientific E-notation)
0.000000372
(Real Number)
The answer is A is this geometry?
Answer:
Option C
Step-by-step explanation:
Difference of the two expressions has been written as,

To rewrite this expression as one expression,
First he factored the the denominators,

Then Juan will make the denominators of both the terms equal,
For which he will multiply the second expression by
.

Option C will be the correct option.