Answer:
D
Step-by-step explanation:
Using the rule of exponents
⇔ 
Given

= 
= (
)³
Answer:
23
Step-by-step explanation:
5x6-c
5x6=30
30-c
c=7
30-7=23
Firstly, for it to be a trinomial the expression would have to be x^2+5x+6 to factor this we would simply have to find 2 numbers that add up to 5 and multiply to 6. 3+2=5 and 3•2=6 so (x+3)(x+2) would be the answer
Answer:
-7.2
Step-by-step explanation:
-4(0.3)-6
-1.2-6
-7.2
Answer:
The unknown number is 
Step-by-step explanation:
Let's make the unknown number x.
The sum of 5 TIMES a number (x) & 8 is 9.
Let's write it mathematically.
5x + 8 =9
We are trying to find the unknown number, so let's remove all the numbers from the left side to find x. Minus 8.
5x=1
5x is basically 5 times x, so to find x, we need to divide and from there we can remove 5.
x= 