All categories

3 years ago

Express the area of a rectangle of x+6 and x+2

Mathematics

1 answer:

noname [10]3 years ago

3 0

Answer:

x²+8x+12, do the distributive property

Step-by-step explanation:

x+6 times x+2 is equal to x(x+2) and 6(x+2) , that will leave you with x²+2x and 6x+12. Add these together to get x²+8x+12

You might be interested in

Can someone please help

Ymorist [56]

[0, positive infinity)

5 0

2 years ago

One number is 23 more than another. If the sum of the two numbers is 163, find the two numbers.

kipiarov [429]

ANSWER

93 and 70

EXPLANATION

We have that one number is 23 more than another.

Let the first number be x.

Let the second number be y.

This means that:

x = 23 + y ____(1)

The sum of the two numbers is 163. This means that:

x + y = 163 ____(2)

Put (1) in (2):

23 + y + y = 163

23 + 2y = 163

2y = 163 - 23

2y = 140

y = 140 / 2

y = 70

From (1):

x = 23 + 70

x = 93

The two numbers are 93 and 70.

5 0

1 year ago

Solve for x in the equation x squared + 2 x + 1 = 17.

Papessa [141]

Answer:

$x = - 1 + \sqrt{17}\\and\\x = - 1 - \sqrt{17}\\$

Step-by-step explanation:

given equation

$x^2 +2x +1 = 17$

subtracting 17 from both sides

$x^2 +2x +1 = 17\\x^2 +2x +1 -17= 17-17\\x^2 +2x - 16 = 0\\$

the solution for quadratic equation

$ax^2 + bx + c = 0$ is given by

x = $x = -b + \sqrt{b^2 - 4ac} /2a \\\\and \ \\-b - \sqrt{b^2 - 4ac} /2a$

________________________________

in our problem

a = 1

b = 2

c = -16

$x =( -2 + \sqrt{2^2 - 4*1*-16}) /2*1 \\x =( -2 + \sqrt{4 + 64}) /2\\x =( -2 + \sqrt{68} )/2\\x = ( -2 + \sqrt{4*17} )/2\\x = ( -2 + 2\sqrt{17} )/2\\x = - 1 + \sqrt{17}\\and\\\\x = - 1 - \sqrt{17}\\$

thus value of x is

$x = - 1 + \sqrt{17}\\and\\x = - 1 - \sqrt{17}\\$

3 0

2 years ago

Length,breadth & diagonal of a cuboid are 60 cm,20 cm & 65 cm respectively. find its volume?

Lera25 [3.4K]

I hope this helps you

Volume=60.20.65

Volume=78000

7 0

3 years ago

What does -1/2 * 1/2 = to

sertanlavr [38]

The answer is -1/4.

Hope this helps

3 0

3 years ago

Read 2 more answers