Answer:
12
Step-by-step explanation:
All exterior angles = 30°
Sum of polygon = 360°
Number of sides= 360/30 = <u>12 sides</u>
<u></u>
Hope this helps! :)
These tests are designed to better replacements for old versions of state tests because (as PARCC claims) they provide better information about students' skills and development to teachers and parents. In a nutshell, these examinations are meant to evaluate college and career readiness starting at a young age.
Answer:
The correct answer is b
Step-by-step explanation:
To find the answer to this question, we would need to find the percentage of each option, and compare it to our question.
95*.8=76<80 Incorrect
120*.75=90>80 correct
270*.2=54<80 incorrect
180*.4=72<80 incorrect
The correct answer is b
Hope this helps!
Answer:
The Answer is [B]
Step-by-step explanation:
i actually dont have one
Answer:
Yes,a similar formula is used to find all the products
Step-by-step explanation:
The formula applied in this case is;
(a+b)²= (a+b) (a+b)= a(a+b)+b(a+b) = a²+ab+ab+b²= a²+2ab+b²
In the first one;
![(x+3)^2= (x+3) (x+3) = x(x+3)+3(x+3) = x^2 +3x+3x+9 = x^2 +6x +9](https://tex.z-dn.net/?f=%28x%2B3%29%5E2%3D%20%28x%2B3%29%20%28x%2B3%29%20%3D%20x%28x%2B3%29%2B3%28x%2B3%29%20%3D%20x%5E2%20%2B3x%2B3x%2B9%20%20%3D%20x%5E2%20%2B6x%20%2B9)
In the second one;
![(x+4)^2 = (x+4) (x+4) = x(x+4)+ 4(x+4) = x^2 +4x+4x+16 = x^2 +8x+16](https://tex.z-dn.net/?f=%28x%2B4%29%5E2%20%3D%20%28x%2B4%29%20%28x%2B4%29%20%3D%20x%28x%2B4%29%2B%204%28x%2B4%29%20%3D%20x%5E2%20%2B4x%2B4x%2B16%20%3D%20x%5E2%20%2B8x%2B16)
⇒This is the same for the third and fourth product.