Given that each of the brick is

ft tall and the finished stack of bricks is

ft tall.
Let the number of bricks in the stack be x, then

Therefore, 7 bricks will go in the stack.
Answer:
No, the pair is not a solution to the equation.
Step-by-step explanation:
For the pair to be a solution to the equation, x = -2 must lead to y = 8, o =r vice versa. This leads to being able to solve it two ways either through x or through y.
I'll solve it through x:
y = -2x - 1
with x = -2
y = -2 * - 2 - 1
y = 4 - 1
y = 3
Since y = 3, when x = -2 the pair (-2,8) is not a pair to the solution of the equation.
PS: You can double check by solving through y and you'll find x = -4.5
Its a right angled triangle. You have C and have B all you need to find is A. usually for a question like this you would use the Pythagorean theorem which is A2+B2=C2 but since we already have c we will use C2-B2=A2
Now we fill in the values. (21)2-(9)2=A2
441-81=360^2 so now with the 360^2 we have to squareroot it so the square root of 360 is 18.973f
No. If no right angle exists, then it's not a rectangle.
Answer: y=-32
Step-by-step explanation:
1. Simplify:
-6y-90=-3y+6
2. Add like terms:
-96=3y
=> y=-32
Have a nice day! :)