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vlabodo [156]
3 years ago
14

What is the factorization of the trinomial below 3x^3-24x^2+45x

Mathematics
2 answers:
trapecia [35]3 years ago
7 0
1st factor is 3x: 
<span>= 3x(x² - 8x + 15) </span>

<span>2nd & 3rd factors: </span>
<span>x² - 8x + 15 = 0 </span>
<span>x² - 4x = - 15 + (- 4)² </span>
<span>x² - 4x = - 15 + 16 </span>
<span>(x - 4)² = 1 </span>
<span>x - 4 = 1 </span>

<span>= x - 4 - 1, = x - 5 </span>
<span>= x - 4 + 1, = x - 3 </span>

<span>Answer: 3x(x - 5)(x - 3) are the factors. </span>

<span>Proof: </span>
<span>= 3x(x - 5)(x - 3) </span>
<span>= 3x(x² - 5x - 3x + 15) </span>
<span>= 3x(x² - 8x + 15) </span>
<span>= 3x³ - 24x² + 45x</span>
kondaur [170]3 years ago
7 0

Answer: 3x(x-3)(x-5)

Step-by-step explanation:

The negative has to be consistance because of the earlier factoring

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Ksivusya [100]
The ans is3^1/3*9^1/3=27^1/3=3
4 0
3 years ago
A box contains 4 oranges, 9 apples, and 3 pears. Liliana selects a piece of fruit from the box at random. What is the probabilit
valina [46]
Hello!

You first find out how many objects there are in total


4 + 9 + 3 = 16

Then you find the probability of Liliana picking a orange

Since there are 4 oranges and 16 things to pick she has a 4/16 chance of getting an orange

Next you find the probability of Liliana picking a pear

There are 3 pears and 16 items to pick so she has a 3/16 chance

Then you add them together to find the chance of either happening

4/16 + 3/16 = 7/16

So she has a 7 out of 16 chance of getting an orange or a pear

The answer is 7/16

Hope this helps!
3 0
3 years ago
When labeling a pre-image and it's image, we use a small tick mark. It's called a(n):
IgorLugansk [536]

Answer:

Prime

Step-by-step explanation:

If we have a point on a pre-image, we can have it labelled as A(x,y)

Now, we can write this as the image

To write this as the image, we simply have to add a mark on the A

This mark is at the upper right

We have it as A’ (x,y)

The part added is called a prime

4 0
3 years ago
Read 2 more answers
Write an equation of the line that passes through (2,5) and is parallel to the line 2y = 3x + 10.
Advocard [28]

Answer:

y = 3/2x - 8  hope I helped

Step-by-step explanation:

To find the equation of a line, we need a point and a slope. We're given a point, and we can easily get the slope. First let's solve 2y = 3x + 10 for y so we can get the slope (recall that y = mx + b is the slope-intercept form, and m is your slope).

2y = 3x + 10  --> almost there already, just divide everything by 2 to get y by itself.

y = 3/2x + 5 --> now you have it in the y=mx + b form, so your slope is 3/2

They asked for the parallel line, remember parallel lines have the same slope, therefore you use the same slope.

Now we know that our slope is m = 3/2 and our point is (2, -5)

You can always find the equation of a line using the Point-Slope Formula:

y - y1 = m(x - x1)    --> our x1 is 2 and our y1 is -5, and slope is 3/2

y - (-5) = 3/2(x - 2)   --> Be careful when you have minus a negative number, like we do here. It becomes:

y + 5 = 3/2(x - 2)  --> now distribute the 3/2

y + 5 = 3/2x - 6/2

y + 5 = 3/2x - 3  --> now we can subtract 5 from both sides to get it into slope intercept form.

y = 3/2x - 8  --> This is the equation of a line that is parallel to 2y=3x+10 & passes through (2, -5)

7 0
2 years ago
Find the value of x°​
777dan777 [17]

Answer:

is it 82 degrees?

Step-by-step explanation:

4 0
2 years ago
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