Answer:
-3x^2 - 5y^2 = 36
Step-by-step explanation:
x^2+y^2=r^2
<h2>
Hello!</h2>
The answer is:

<h2>
Why?</h2>
To solve the problem, we need to perform the operations and then, add like terms.
We need to apply the distributive property, which is defined by the following way:

Also, we need to remember how to add like terms. Like terms are terms that share the same exponent and the same variable, for example:

We were able to add only the first two terms since they are like terms, both are sharing the same exponent and the same variable.
So, we are given the expression:

Then, solving we have:

Hence, we have that the answer is:

Have a nice day!
(5 x 10) + (8 x 1) + (8 x 0.1)
OR
50 + 8 + .8
Fifty-eight and eight tenths
Hope this helped!
Answer:
24/121
Step-by-step explanation:
The probability of an event happening is the ratio of the number of possible outcome to the number of total outcome.
The probability of not getting green then green
= rg or bg
Where r is the probability of getting red, g is the probability of green and b is the probability of blue.
= 4/11 * 3/11 + 4/11 * 3/11
= 12/121 + 12/121
= 24/121
To change a number to percent, move the
decimal point 2 places that way ==> .
To change a percent to a number, move the
decimal point 2 places this way <== .
12.39% = 0.1239 .