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4 years ago

If (x2 – 4) ÷ (x + 2) = x – 2, which polynomial should fill in the blank below?

Mathematics

2 answers:

posledela4 years ago

8 0

Answer:

X-2 is the correct answer! Edge 2020

Step-by-step explanation:

OLEGan [10]4 years ago

6 0

Answer:

x - 2

Step-by-step explanation:

Given expression,

$(x^2-4)\div (x+2)=x-2$

$\frac{x^2-4}{x+2}=x-2$

Multplying both sides by x + 2 ( Division property of equality )

$\frac{x^2-4}{x+2}\times (x+2)=(x-2)\times (x+2)$

$x^2-4=(x-2)(x+2)$

$\implies x^2-4=(x+2)(x-2)$ ( By commutative property )

Thus, SECOND OPTION is correct.

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X+y =10<br> Y=-x+10<br> System of equations

katovenus [111]

Answer:

Infinite solutions

Step-by-step explanation:

x + y = 10

y = -x + 10

We'll choose one equation to use, x + y = 10

Substitute y with -x + 10

x - x + 10 = 10

x cancels each other out

10 = 10, which would also mean 0 = 0

This means the answer will validate with any number

3 0

3 years ago

Reduce 7y + 2y 2 - 7 by 3 - 4y.

NARA [144]

Answer:

D. $2y^2+11y-10$ .

Step-by-step explanation:

Given:

We need to reduce $7y+2y^2-7$ by $3-4y$

Solution:

To reduce the equation means we need to subtract the one equation from other.

First we will arrange the equation n proper format we get;

$2y^2+7y-7$ ⇒ equation 1

Also Arranging other equation we get;

$-4y+3$ ⇒ equation 2

Now we will subtract equation 2 from equation 1 we get;

$(2y^2+7y-7)-(-4y+3)$

Now Applying distributive property for the sign we get;

$2y^2+7y-7+4y-3$

Now Arranging the like terms we get;

$2y2+7y-+4y-7-3\\\\2y^2+11y-10$

Hence the reduce form of the given equation is $2y^2+11y-10$ .

7 0

3 years ago

A sports team is selling circular patches for their fans. Each patch has a

atroni [7]

Answer: 63.59cm²

Step-by-step explanation:

The area covered by the pitch will be gotten by finding the value of the area of the circle and this will be:

Area of q circle = πr²

where,

π = 3.14

r = radius = diameter/2 = 9cm/2 = 4.5cm

Area = πr² = 3.14 × 4.5²

= 3.14 × 20.25

= 63.59cm²

Therefore, the area covered by the pitch is 63.59cm²

4 0

3 years ago

Express 89% as a fraction

Nikitich [7]

89% as a fraction would be 89/100 since it can not be reduced

8 0

4 years ago

Can somebody help me with this question?

Bas_tet [7]

Answer:

86 yd

Step-by-step explanation:

the area of the shaded region is 2924 yd²

let b the doted side next y :

the area of the total triangle is :

A = (y+b)*68/2 = 2924+ b*68/2

$\frac{(y+b)*68}{2}$ = $\frac{b*68}{2}$ + 2924
$\frac{68*(y+b-b)}{2}$ = 2924
68*y/2 = 2924
68y = 2*2924
y= (2*2924)/68
y= 86 yd

5 0

3 years ago