1st question: 3a
2nd question: 2t
We can find the surface area of the pyramid as
here , because the base is squre so
By putting the values of l,w and h
we get
Answer:
hear is your required answer
Answer: y^2 - 6y - 2. To find the sum, add the like-variables. You add them because there is a plus between the two sets of parenthesis. Take away the parenthesis (since there aren’t any factors taken out of either one) and add or subtract accordingly. Since 5y^2 and -4y^2 have the same variable AND exponent, they can be added. The same goes for the -9y and 3y. After adding the like-variables, you should get y^2 - 6y - 2.
A is equal to 50 since 50+10=60 and 50-10=40 so that means b=10. a/b would be 50/10 which is equal to 5