Answer:
(x+9)(x+2)
Step-by-step explanation:
x(x+9)+2(x+9)
(x+2)(x+9)
the order of the (---) doesn't matter
Answer:
30 degrees
Step-by-step explanation:
This is the third time I am answering the same question asked by you.
If x - 7 = -13, we need to get x by itself to solve this equation. To get x by itself, we can add 7 to each side (that way x will be by itself, and only on one side of the equation).
x - 7 + 7 = -13 + 7
We can add 7 to each side without changing the quantity because we do it to BOTH sides.
x = -13 + 7
Since -13 + 7 is -6,
x = -6
Answer:
the reasoning states that "all the numbers begin with a 7 or an 8"
however this is not accurate as they can be in different placements
which can make a big difference in the total estimate.
for example:
the number could've been an 8, or an 80
they both begin with an 8
however have totally different values and could have messed up the total estimated number.
hope this helps :D