I believe it should be b ≥ -2
So it would be an arrow pointing the the right with a closed circle on -2
I hope this will help you!
Answer:
54x^3+18xy^2
Step-by-step explanation:
1.) Expand the Expressions
(3x + y)^3 + (3x - y)^3 =====> 27x^3 + 27x^2y + 9xy^2 + y^3 + 27x^3 - 27x^2y + 9xy^2 - y^3
2.) Remove/Cancel out Opposites
27x^3 + 9xy^2 + 27x^3 + 9xy^2
3.) Collect like terms
27x^3 + 9xy^2 + 27x^3 + 9xy^2
54x^3 + 9xy^2 + 9xy^2
54x^3 + 18xy^2
Formulas used :
(a+b)^3 = a^3 + 3a^2b + 3ab^2 +b^3 (step 1)
Thank You!!! Plzz mark brainliest
Multiple 6 with numbers inside paranthesis:
12x - 66 + 15 = 21
add 66 fhen substrack 15 from both sides :
12x = 72 divide both sides with 12:
x = 6
Using the pythagorean theorem
Base×Base + Perpendicular×Perpendicular = Hypotenuse× Hypotenuse
or B^2+P^2=H^2
B=root H^2 -P^2
Here hypotenuse =50 and Perpendicular = 15
therefore
root(50×50-15×15)
=root(2500-225)
=root(2275)
=47.69
=47.7 (approximately)
Option D is your answer.
The number of adults waiting to see the new superhero movie is 62.
<h3>
How many adults are waiting in line?</h3>
Ratio expresses the relationship between two or more numbers. Ratio is used to compare two or more numbers. It shows the number of times that one value is contained in another value.
Looking at the ratio given in this question, we know that there are 1 1/2 (3 /2) more children than adults on the line to watch the new superhero movie.
Number of adults waiting to see the movie = (ratio that represents adults / sum of ratio) x total number of people wafting in line
Sum of ratios = 2 + 3 = 5
(2/5) x 155 = 62 people
To learn more about ratios, please check: brainly.com/question/25927869
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