Answer:
16
Step-by-step explanation:
If 
, just put the number 
instead of 
.
So:
Answer: x=−3 or x=13
Step-by-step explanation:
Step 1: Subtract 39 from both sides.
x2−10x−39=39−39
x2−10x−39=0
Step 2: Factor left side of equation.
(x+3)(x−13)=0
Step 3: Set factors equal to 0.
x+3=0 or x−13=0
x=−3 or x=13
Answer:
Since, Multiplication is a shortcut for addition.
Use of Distributive Property is the most familiar alternative way to write 9 x 200.
Distributive Property states that when a number is multiplied by the sum of two numbers, then the first number can be distributed to both of those numbers and multiplied by each of them separately i.e,
9 x 200
First replace 200 as 100+100 then, we have
Now, using distributive property above:
9 x 200 = = 900+900 =1800.
Step-by-step explanation:
Answer:
are or rectangle = l*b
252= (x+2) (2x+1)
252= 2x²+x+ 4x +2
2x²+5x -250=0
(x-10) (2x+25)=0
so x=10
using sum and product method
Step-by-step explanation:
We both move the decimal the same amount of times.
When we divide it, we move the decimal two places to the left, giving us 0.008.
When we multiply it, we move the decimal two places to the right, giving us 80.
