3 years ago

Which one of the following statements is true of perpendicular lines?

Mathematics

1 answer:

miv72 [106K]3 years ago

5 0

A. Thay intersect at one point.

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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

3 years ago

What are the measurements of the garden?

Korvikt [17]

Answer:

length 60 feet

length 2=60 feet

width 1=30feet

width 2=30feet

those is because there is 4 sides to a rectangle

Step-by-step explanation:

because the length is twice the width, 2x 30=length

4 0

3 years ago

- Move vertex A so that BAD is a

marin [14]

Answer:the diagonal lengths are equal

Step-by-step explanation:

7 0

3 years ago

The sum of a number and five is seventeen what is the number?

RoseWind [281]

The number would be 12

4 0

3 years ago

Read 2 more answers

25 Points. Please help me out. This is the second to last question I need for the night and then I can go to sleep.

makvit [3.9K]

Combine like terms.

4x^3 -6x^3= -2x^3
-8x^2 +2x^2= -6x^2

Answer = -2x^3 -6x^2 +4

4 0

3 years ago