The strous of Pascal's triangle are shown. David decided to add the numbers in each row. He found the sum of the first row was 1, the sum of the second rows and the sum of the third row was 4
1
2
1
3
1
3
1
1 5 10 10 5 1
Based on the pattern in the triangle, what is the sum of the numbers in the seventh row?

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no