Answer:
-2(-2)
Step-by-step explanation:
-2(x--4)2
-2(-4x)2
different sign subtract
-2(-2)
Hope this helps :D
Not the prettiest but you can simplify
Answer:
Option C is correct.
Step-by-step explanation:
The last step is y+0 =y
This represents additive identity property.
This property states if zero is added to any number we get the same number.i.e if 0 is added to y then we get y (y+0=y)
So, Option C is correct
a .
16.000x9x5 over 100 is the answer :)
Answer:
Number of questions constraint:
x + y ≥ 15
Time constraint :
5x + 8y ≤ 120
Step-by-step explanation:
Let :
x = number of equations
y = number of word problems
Number of answers required = atleast 15
Equation takes 5 minutes
Word problem takes 8 minutes
Time available to complete exam = 120 minutes
Constraints :
Number of questions required
Total questions shout be atleast 15
x + y ≥ 15
Time constraint :
5x + 8y ≤ 120
