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Sophie [7]
3 years ago
14

Use factoring to solve the equation for x: (x−2)(2x−3)=(x−2)(x+1).

Mathematics
1 answer:
telo118 [61]3 years ago
5 0

Answer:

x = 4, 2

Step-by-step explanation:

(x-2)(2x-3)=(x-2)(x+1)

\\\Rightarrow 2x^2-7x+6=x^2+x-2x-2\\\Rightarrow 2x^2-7x+6-x^2+x-2x-2=0\\\Rightarrow x^2-6x+8=0

While splitting the middle term the sum of the term should give us the middle term and their product should give the last term

\\\Rightarrow x^2-4x-2x+8=0

-4-2 = -6

-4\times -2=8

\\\Rightarrow (x-4)(x-2)=0\\\Rightarrow x=4, 2

Hence, x = 4, 2

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Camilias as backyard is in the shape of a rectangle and has a length of 16.5 feet. It costs her $976 to fence in the yard. If fe
Bumek [7]

Answer:

14 feet

Step-by-step explanation:

To calculate the width of the patio, we will use the formula of the perimeter, in the case of the rectangle it has the formula of:

p = 2 * l + 2 * w

Now we know that the total fencing value is $ 976 and that per foot is $ 16

that is, we can calculate the value of the perimeter, like this:

976/16 = 61

We know that the perimeter is 61 feet and that the length is 16.5, therefore it only remains to replace:

61 = 16.5 * 2 + 2 * w

solving for w:

w = (61 - 33) / 2

w = 14

which means that the width of the patio is 14 feet.

8 0
3 years ago
If (2x + 4) - (x + 3) = 15, then x =
kap26 [50]

Answer:

x=14

Step-by-step explanation:

6 0
3 years ago
Please hurry and answer
Katarina [22]

Answer:

64

Step-by-step explanation:

It’s directly adjacent to the other angle.

4 0
2 years ago
Jess and Wes used to race each other when they were younger. Jess could cover 8
marshall27 [118]

Answer:

160 meters

Step-by-step explanation:

Let call dj  distance run by  Jess    and   dw  distance run by Wes

By Jess courtesy Wes will be  60 meters ahead of Jess

Let call t the time in which both runners are at the same point, which in fact is when both distances are equal

dj  =  8 m/sec * t        and    dw  =  60  +  5 m/sec * t

Then we make  dj = dw

8*t  =  60 + 5*t

3*t  =  60

t = 20 sec

Now passed 20 sec  dj   =   8 * 20   = 160 m

and   dw = 60 + 5*20   dw  =  160 m

5 0
3 years ago
Find AC, round to the nearest whole number​
xxMikexx [17]

20

Triangles are 180 total so just add 118 and 22 then subtract it from 180 for your answer

8 0
3 years ago
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