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Wittaler [7]
2 years ago
10

Which expressions are equivalent to 5x - 15

Mathematics
2 answers:
lara31 [8.8K]2 years ago
7 0
B C and E are equivalent to 5x -15
zheka24 [161]2 years ago
5 0
Your answer would be A I think !
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Factor f(x) = 15x^3 - 15x^2 - 90x completely and determine the exact value(s) of the zero(s) and enter them as a comma separated
Illusion [34]

Answer:

x=-2,0,3

Step-by-step explanation:

We have been given a function f(x)=15x^3-15x^2-90x. We are asked to find the zeros of our given function.

To find the zeros of our given function, we will equate our given function by 0 as shown below:

15x^3-15x^2-90x=0

Now, we will factor our equation. We can see that all terms of our equation a common factor that is 15x.

Upon factoring out 15x, we will get:

15x(x^2-x-6)=0

Now, we will split the middle term of our equation into parts, whose sum is -1 and whose product is -6. We know such two numbers are -3\text{ and }2.

15x(x^2-3x+2x-6)=0

15x((x^2-3x)+(2x-6))=0

15x(x(x-3)+2(x-3))=0

15x(x-3)(x+2)=0

Now, we will use zero product property to find the zeros of our given function.

15x=0\text{ (or) }(x-3)=0\text{ (or) }(x+2)=0

15x=0\text{ (or) }x-3=0\text{ (or) }x+2=0

\frac{15x}{15}=\frac{0}{15}\text{ (or) }x-3=0\text{ (or) }x+2=0

x=0\text{ (or) }x=3\text{ (or) }x=-2

Therefore, the zeros of our given function are x=-2,0,3.

7 0
3 years ago
Factor the expression 20k + 50
Yuliya22 [10]
Answer is 10(2k+5)

-----------------------------------

Work Shown:

20k+50 = 10*2k + 10*5
20k+50 = 10(2k+5)

Note how we can distribute the 10 back in to check our work
10(2k+5) = 10(2k)+10(5) = 20k+50
so that confirms we have the right answer

Another thing to notice is that 10 is the largest factor that we can pull out of 20k and 50. The value 10 is the GCF (greatest common factor) of 20 and 50.
4 0
3 years ago
Write the fraction equovalent of 0.82 in simplest form. use the / bottom as the fraction bar.
Luden [163]
82/100 or 41/50 if you simplify
6 0
3 years ago
GET 15 POINTS JUST ANSWER QUICK!!!
Mrac [35]

Answer:

Step-by-step explanation:

if one batch of brownies is 2 cups of flour, then 10 batches of brownies would be 20 cups of flour

6 0
3 years ago
Read 2 more answers
A cook uses 12 cups of tomatoes to make 5 jars of sauce. What is true about the number of cups of tomatoes in each jar?
pickupchik [31]
12÷5=2.4

There are 2.4 cups of tomatoes in each jar.
7 0
2 years ago
Read 2 more answers
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