All categories

3 years ago

Factor the difference of two perfect squares using the X method. What are the two binomial factors for x2 – 25?

Mathematics

2 answers:

Daniel [21]3 years ago

8 0

Answer:

its D

Step-by-step explanation:

lilavasa [31]3 years ago

4 0

That is D
positive sign in one bracket and negative in the other

You might be interested in

Four sisters bought a present for their father. They recieved a 10% discount on the original price of the gift. After the discou

viktelen [127]

9 x 4 = 36

36 x .1 = 3.6

36 + 3.6 = 39.6

$39.60 was the original orice

8 0

3 years ago

An ice cube melts to become water in a cup. how will the ice cube and the water be the same?

Ivenika [448]

When the ice melt it became water so that means if you freeze the water in a cubed shape than it would become an ice again.

8 0

3 years ago

A rectangle has a length of (x+10) centimeters and a width of x centimeters. If the perimeter is 32 centimeters, what is the len

I am Lyosha [343]

Given:

Length of rectangle = (x+10) cm

Width of the rectangle = x cm

Perimeter = 32 cm

To find:

The length of the rectangle.

Solution:

We know that,

$Perimeter=2(l+w)$

Where, l is length and w is width.

Substituting the values, we get

$32=2((x+10)+x)$

$32=2(2x+10)$

$32=4x+20$

Subtract 20 from both sides.

$32-20=4x$

$12=4x$

Divide both sides by

$3=x$

So, the length is

$3+10=13$

Therefore, the length of the rectangle is 13 cm.

7 0

3 years ago

the coordinates of a quadrilateral are (5,8), (7,10), (9,12) and (11,14). after a transformation, the sign of the x-coordinate a

BartSMP [9]

Answer:

The quadrilateral is rotated 180° about the origin

Step-by-step explanation:

Lets revise some transformation

- If point (x , y) reflected across the x-axis

∴ Its image is (x , -y)

- If point (x , y) reflected across the y-axis

∴ Its image is (-x , y)

- If point (x , y) reflected across the line y = x

∴ Its image is (y , x)

- If point (x , y) reflected across the line y = -x

∴ Its image is (-y , -x)

- If point (x , y) rotated about the origin by angle 90° anti-clock wise

∴ Its image is (-y , x)

- If point (x , y) rotated about the origin by angle 90° clock wise

∴ Its image is (y , -x)

- If point (x , y) rotated about the origin by angle 180°

∴ Its image is (-x , -y)

* There is no difference between rotating 180° clockwise or

anti-clockwise around the origin

* In our problem:

- The sign of the x-coordinate and the sign of the y- coordinate

for each ordered pair have changed

- The image of each point is (-5 , -8) , (-7 , -10) , (-9 , -12) , (-11 , -14)

∴ The quadrilateral is rotated 180° about the origin

7 0

3 years ago

Solve the following quadratic equation:<br><br>x/x+3 = 5/2x+6

Leni [432]

Answer:

$x=5/2, x=-3\\$

Step-by-step explanation:

$x(2x+6)=5(x+3)\\2x^2+6x=5x+15\\2x^2+6x-5x-15=0\\2x^2+x-15=0\\2x^2+6x-5x-15=0\\2x(x+3)-5(x+3)=0\\(2x-5)(x+3)=0\\2x-5=0, x+3=0\\x=5/2, x=-3\\$

7 0

3 years ago