Factor w^2-7w-8 show work

Answers

Answer 1

Answer: find what 2 numbers add to -7 and multiply to -8
+1 and -8
(w+1)(w-8)

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PLSSSS HELP IF YOU TRULY KNOW THISS
Given the function rule f(x)= x^-2 - 4x + 3, what is the output of f(-3)?A. 24 B. 21 C. 0 D. -3
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The value of m in the equation 9m-4=-18+2m

Answers

9m - 4 = -18 + 2m

First, we transfer 2m to the other sideand change operation from positive to negative. We also do the same for -4 andchange operation from negative to positive in order to solve this equation.

9m - 2m =-18 + 4

Next we simplysubtract and add from left to right, respectively.

7m = -14

Then, we can now findm by dividing both sides with 7…

7m/7 =-14/7

We’ve arrived at the answer!

m = -2

Checking:

9(-2) - 4= -18 + 2(-2)
-18 - 4 =-18 - 4
-14 = -14

I hopethis helps. :)

If you would like to know what is the value of m in the equation 9 * m - 4 = - 18 + 2 * m, you can calculate this using the following steps:

9 * m - 4 = - 18 + 2 * m
9 * m - 2 * m = - 18 + 4
7 * m = - 14 /7
m = - 14 / 7
m = - 2

The correct result would be - 2.

A soccer team played 160 games and won 65 percent of them. how many games did it win?A. 94
B. 104
C. 114
D. 124

Answers

The answer would be B. 104. If you multiply 160 by 0.65, you get 104, which is the amount of games they have won. If you were to multiply 160 by 0.35, you'd get the amount of games they lost. Hope this helped!

The soccer team won B. 104 games, go team!

Jerome bikes 5 miles in 20 minutes. ..
Find the number of miles he'll bike in 2 hours

Answers

Answer:

30 miles

Step-by-step explanation:

there are 60 minutes in an hour. if he rides 5 miles in 20 minutes, 20 time 3 is 60 so hes up to 15 miles then you add 4 more 20's to get to another 60 and that would be 30miles hope this heped!

5 miles by 20min

10miles by 40min

15 miles by 60 min

20 miles by 1hr 20min

25miles by 1hr 40 min

30 miles by 2hr

Answer:

200 miles

Step-by-step explanation:

distance = speed * time

speed = distance/time

time= distance/speed

We are finding the miles. That equals to distance. Which is speed * time. 5 * 20= 100.

It says after 2 hours. So, double that 100 to get 200.

How Do I Find The Domain & Range Of
y=2x-4 ?

Answers

Both the domain and range of the function is in range -

( - ∞ , + ∞ )

We have the following function -

y = f(x) = 2x - 4

We have to identify its Domain and Range.

What do you mean by domain and range of a function?

For any function y = f(x), Domain is the set of all possible values of y that exists for different values of x. Range is the set of all values of x for which y exists.

Consider the equation given -

y = 2x - 4

If we compare it with the general equation of line -

y = mx + c

We get -

m = 2 and c = - 4

Now this graph of the equation y = mx + c represents a straight line.

Hence, both the domain and range of the function are-

( - ∞ , + ∞ )

To solve more questions on Domain and Range, visit the link below -

brainly.com/question/20207421

#SPJ2

The domain is how far left and right it goes on a graph, and the range is how far up and down it goes on a graph. Because this equation is linear (if you graphed it, it would be in a straight line), both the domain and range are infinity, because it keeps going up and to the right, the larger X gets, and smaller and to the left, the more negative X gets.

Find the vertex, focus, directrix, and focal width of the parabola. x = 4y2.

Answers

- Vertex : ( 0, 0 ).
- Focus: ( p/2, 0 );
y² = 1/4 x
y² = 2 p x ⇒ 2 p = 1/4
p = 1/8
p/2 = 1/16
F ( 1/16, 0)
- Directrix:
x = - p/2 x
x = - 1/16 x
- The focal length:
2 p = 2 · 1/8 = 1/4

Answer:

The vertex is (0,0), focus of the parabola is $((1)/(16),0)$ , directrix of the parabola is $y=-(1)/(16)$ , focal width is $(1)/(4)$ .

Step-by-step explanation:

The given equation of parabola is

$x=4y^2$

It can be written as

$y^2=(1)/(4)x$ ....(1)

The general equation of parabola is

$(y-k)^2=4p(x-h)$ ... (2)

Where, (h,k) is vertex, (h+p,k) is focus, y=h-p is directrix and |4p| is focal width.

On comparing (1) and (2), we get

$h=0,k=0$

The vertex is (0,0).

$4p=(1)/(4)$

$p=(1)/(16)$

Focus of the parabola is

$(h+p,k)=(0+(1)/(16),0)=((1)/(16),0)$

Therefore focus of the parabola is $((1)/(16),0)$ .

Directrix of the parabola is

$y=h-p=0-(1)/(16)=-(1)/(16)$

Directrix of the parabola is $y=-(1)/(16)$ .

Focal width is

$|4p|=|4* (1)/(16)|=(1)/(4)$

Focal width is $(1)/(4)$ .

In an observational study, which of the choices below refers to a snapshot of all data collected and the statistical analyses conducted?A) Introduction
B) Methodology
C) Results
D) Discussion

Answers

In an observational study, the introduction refers to a snapshot of all data collected and the statistical analyses conducted

Intro is WRONG!!!!!

I`m sorry I don`t know but intro is wrong

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