Answer:
see explanation
Step-by-step explanation:
(a)
2x + 10 ← factor out 2 from each term
= 2(x + 5)
(b)
5x - 15 ← factor out 5 from each term
= 5(x - 3)
(c)
8x + 6 ← factor out 2 from each term
= 2(4x + 3)
(d)
12x - 8 ← factor out 4 from each term
= 4(3x - 2)
Answer:
chicken nuggets to the moon
Answer:
Tina is correct
Step-by-step explanation:
Given
Required
State if 
is a possible dimension
To do this, we simply expand
By comparison, the result of the expansion
and the given expression
are the same.
<em>Hence, Tina is correct</em>
Answer: In mathematics, a variable is a symbol which functions as a placeholder for varying expression or quantities, and is often used to represent an arbitrary element of a set. In addition to numbers, variables are commonly used to represent vectors, matrices and functions
Step-by-step explanation:A symbol for a value we don't know yet. It is usually a letter like x or y.
Example: in x + 2 = 6, x is the variable.
Why "variable" when it may have just one value? In the case of x + 2 = 6 we can solve it to find that x = 4. But in something like y = x + 2 (a linear equation) x can have many values. In general it is much easier to always call it a variable even though in some cases it is a single value.
Answer:
x = -2
Step-by-step explanation:
To find out what x is you have to use inverse operation.
Minus the 8 on both sides.
5x = -10.
Divide both sides by 5 to find out what x is on it's own.
x = -2.
Hope this helps :)
