The answer is neither.
Let's take an odd number and substitute.
- f(3) = 3³ - 4(3)
- f(3) = 27 - 12
- f(3) = 15 (odd)
Now, let's take an even number.
- f(4) = 4³ - 4(4)
- f(4) = 64 - 16
- f(4) = 48 (even)
Since both even and odd numbers are possible, it is neither.
Line 1
Natalie was supposed to use PEMDAS (as we all do when doing math), which stands for: Parentheses, Exponents, Mulitplication, Division, Addition, Subtraction. However, Natalie subtracted 1 from 2 before multiplying 6 by 4 and dividing it by 2.
Hope this helps!!
Answer:
24
20
4
Step-by-step explanation:
⅘×30=24... 4×30=120, 5×30=150... 120/150
120/2=60
150/2=75
60/75= 0.8
⅘= 0.8
do the same with all of the others
Answer: (5,8)
Step-by-step explanation:
So this is a matter of using a system of linear equations
To start if a total of 13 people got a ticket then we know that
x+y=13
x and y being explained in the problem
then if adult tickets are $40 and children tickets are $20 and the total cost is 360 we can set up the next equation
40x+20y=360
<em>If you were to plug in 1 lets say into x that means that 1 person bought a ticket for $40 this shown by 40 (1) this is the same premise for the childrens tickets.</em>
now we have
x+y=13
40x+20y=360
now we can solve by eliminating one of the variables this is done by either getting rid of the x or y and solving for the other. I solved for the y value first this looks like
-40(x+y=13)
40x+20y=360
Distribute the -40 to each value
giving you
-40x-40y=-520
40x+20y=360
add these together from the top down
the x's cancel leaving
-20y=-160
then isolate the y value by dividing both sides by -20
-20y/-20=-160/-20
leaving you with your y point
y=8
This is how many childrens rickets were sold now we can plug into the first linear equation
x+8=13
now easy subtration to isolate the x point
x+8-8=13-8
x=5
Finally leaving you with point (5,8)
1) y = 3
2) C.) 8 * 60 - 8 * 6 ⇒ it will look like this 8(60-6) ⇒ 8(54)
3) A) 7u + 5v
4) 4x³ and x³ are like numbers
5) Simplify: 5x³ - 2x² + x + 4x³
group like numbers: 5x³ + 4x³ - 2x² + x
9x³ -2x² + x ⇒ letter C.
