What are the first two answers? #16 and #17

5. Use the vertical method to multiply two trinomials.

Gekata [30.6K]

Answer:

20x^4 - 13x^3 + 8x^2- x + 6

Step-by-step explanation:

box method :)

5 0

2 years ago

Write an equation to represent the number of pages Jesse has read. Using x, the number of days Amir has been reading, write an e

katrin [286]

Question:

Jesse and Amir were assigned the same book to read. Jesse started reading on Saturday, and he is reading 30 pages a day. Amir didn't start until Sunday, but he is reading 35 pages a day.

How many days will it take Amir to catch up to Jesse, and how many pages will they each have read?

Write an equation to represent the number of pages Amir has read. Use x to represent the number of days Amir has been reading and y to represent the number of pages he has read.

Answer:

It will take 6 days

Step-by-step explanation:

For Jesse:

$Rate = 30\ pages/day$

This implies that Jesse will cover 30y in y days

For Amir:

$Rate = 35\ pages/day$

This implies that Amir will cover 35x in x days

Because Amir starts a day later,

$y = x + 1$

So, we have the following equations:

$Jesse = 30y$

$Amir= 35x$

$y = x + 1$

To get the number of days when they read the same number of pages, we have:

$Jesse = Amir$

Substitute values for Jesse and Amir

$30y = 35x$

Substitute x + 1 for y

$30(x+1) = 35x$

Open bracket

$30x+30 = 35x$

Collect Like Terms

$30 = 35x-30x$

$30 = 5x$

Solve for x

$\frac{30}{5} = \frac{5x}{5}$

$\frac{30}{5} = x$

$6 = x$

$x = 6$

7 0

2 years ago

Graph the function f(x) = x3 – 3x – 2. Based on the graph, which value for x is a double root of this function? a.–2 b.–1 c.1 d.

dalvyx [7]

To solve the problem shown above you must apply the following proccedure:

1. You have the following function given in the problem:

 f(x)=x3–3x–2

2. When you give values to the x and plot each point obtained, you obtain the graph shown in the figure attached.

3. Based on the graph and analizing the alternate form:

f(x)=(x-2)(x+1)²

As you can see, there is two roots x=-1, then, you can conclude that the correct answer is the option b, which is:

b) -1