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Leokris [45]
3 years ago
5

Help ? I need steps on how to do this

Mathematics
1 answer:
Furkat [3]3 years ago
8 0

<em>Answer</em><em> </em><em>:</em><em>-</em><em> </em>

<em>the</em><em> </em><em>quoti</em><em>ent</em><em> </em><em>is</em><em> </em><em>(</em><em> </em><em>4</em><em>x</em><em>²</em><em> </em><em>-</em><em> </em><em>5</em><em>x</em><em> </em><em>+</em><em> </em><em>7</em><em> </em><em>)</em>

Step-by-step explanation:

[ Refer to the attachment for steps ]

  • We have to eliminate the highest degree coefficient in each step.

  • And as in division of normal numbers we subtract the things here we do the same ,

but while subtracting we have to take care about the signs !

  • The negative sign changes the negative sign into positive sign and positive sign into negative sign.

  • Whereas , a positive sign don't changes the sign.

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Kathy is fencing in her yard that has an area of 800 square feet. Her yard is in the shape of a rectangle where the length is 60
anygoal [31]

Answer:

The dimensions of the yard are W=20ft and L=40ft.

Step-by-step explanation:

Let be:

W: width of the yard.

L:length.

Now, we can write the equation of that relates length and width:

L=5W-60 (Equation #1)

The area of the yard can be expressed as (using equation #1 into #2):

Area=W*L=W*(5W-60) (Equation #2)

Since the Area of the yard is 800 ft^2, then equation #2 turns into:

800=W*(5W-60)

Now, we rearrange this equation:  

800=W*(5W-60)//800=5W^2-60W//5W^2-60W-800=0

We can divide the equation by 5 :

W^2-12W-160=0

We need to find the solution for this quadratic. Let's find the factors of 160 that multiplied yields -160 and added yields -12. Let's choose -20 and 8, since (-20)*8=160 and -20+8=-12. The equation factorised looks like this:

(W-20)(W+8)=0

Therefore the possible solutions are W=20 and W=-8. We discard W=-8 since width must be a positive number. To find the length, we substitute the value of W in equation #1:

5*20-60=40

Therefore, the dimensions of the yard are W=20ft and L=40ft.

7 0
3 years ago
HELLLOOOO THIS IS DUE HELP
loris [4]

Answer:

RS=13

Step-by-step explanation:

RS+ST=RT

2w+1+w-1=18

3w=18

w=6

RS= 2w+1= 2(6)+1= 12+1= 13

7 0
3 years ago
At a bead store, glass beads cost $2.85 per ounce. What is the price for 8.6 ounces of glass beads?
Zielflug [23.3K]
(2.85)(8.6) = $24.51
4 0
3 years ago
Read 2 more answers
Help on both questions ASAP
Troyanec [42]
For the dot plot write down the numbers from 18 to 26 and then plot how ever many points there are of each value
5 0
3 years ago
(50 POINTS) A group of workers is harvesting berries at a constant rate. An equation that represents the number of baskets of be
goldenfox [79]

Hi There!


Follow y = mx + b

m = slope

b = y intercept


(a) What are the slope and the y-intercept for the equation that represents the number of baskets of berries the workers picked over a period of time?

Slope = 5

Y intercept = 10


(b) What are the rate of change and the initial amount? Explain the meaning of the rate of change and the initial amount for the situation.

The rate of change is how much it takes for the amoun to change. The initial amount should be going up with a slope of 5 each time.


(c) Use graph paper to draw a graph representing the situation. Label the axes appropriately.

Start at the origin than continue with a slope of 5 and make sure the y intercept is correctly graphed.

4 0
3 years ago
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