we have
6x+7y=4x+4y
we figure out that
the solution is ----> (x,-4)
substitute the value of y=-4 in the equation
6x+7*(-4)=4x+4*(-4)
6x-28=4x-16
Combine like terms
6x-4x=28-16
2x=12
x=12/2
x=6
So the the missing value is x=6.
11 cm maybe but not too sure answer is 11
Given the polynomial expression:
(y + 5)²
(y - 5)(y + 5)
Let's simplify each of the given expression:
a.) (y + 5)²
The given equation is a factor of a perfect square trinomial. For this type of expression, the following is the formula for expanding it.
We get,
b.) (y - 5)(y + 5)
To be able to simplify the following expression. We will be using the formula for the difference of two squares.
We get,
Answer:
The pattern will be an=a1 × r^(n-1)
Forexample :
a2 =a1×r2-1 =a1×r1 =5×71 =35
a3 =a1×r3-1 =a1×r2 =5×72 =245
a4 =a1×r4-1 =a1×r3 =5×73 =1715
a5 =a1×r5-1 =a1×r4 =5×74 =12005
a6 =a1×r6-1 =a1×r5 =5×75 =84035
a7 =a1×r7-1 =a1×r6 =5×76 =588245
a8 =a1×r8-1 =a1×r7 =5×77 =4117715