Answer:
C. x²+3x-28
Step-by-step explanation:
f(x) = x +7
g(x) = x -4
f(x) · g(x) = (x-4)(x+7)
= x²+7x-4x-28
= x²+3x-28
Answer:
I think its C) yellow only.
Answer: ? Wha?
Step-by-step explanation:
Answer:
-10
Step-by-step explanation:
I dont want you to "Literally die" so heres the explaination:
The absolute value mean always a positive number. So if a number is positive and it has the absolute value symbol next to it then it is positive. If the number is negative than it become positive. With that say, we can began to solve our linear equation.
We shoudl first isolate the variable so let's subtract the number 8 from BOTH SIDES. So now we should have -24=-12(k/5)
Now we will use the disributive property. this will give us:
-24=(-12k/5)
BUT WAIT!! THE ABSOLUTE VALUE RULE MUST BE APPLIED!!
Therefore it should be -24=12k/5
Now we can just solve this regularly:
Keep reading if you don't know how to solves linear equations.
Multiply 5 to both sides:
-120=12k
k=-10
Answer:


Step-by-step explanation:
Functions and Geometry
Sometimes we need to express areas, volumes, and distances in terms of unknown quantities (or variables). When we can find such expressions, they can be referred to as functions. Let's recall the area of a rectangle is A=wl, being w its wide and l its length
Please refer to the image below. The length of the swimming pool is l and its width is w. Its area is

We know the length is twice as long as its width, l=2w, so


The sidewalk is 2 feet wide. The length of the pool and its sidewalk is

Similarly, the width of the pool+sidewalk is

The area of the pool+sidewalk is

We know that l=2w, so


The area of the sidewalk alone is the subtraction of both areas

Simplifying
