Which two numbers add up to 6 and muliply to -126

Answers

Answer 1

Answer: xy=-126
x+y=6
minus x

y=6-x
sub
x(6-x)=-126
6x-x^2=-126
minus (6x-x^2) both sides
0=x^2-6x-126

in form
ax^2+bx+c=0
x= $\frac{ -b+/-\sqrt{b^(2)-4ac} }{2a}$

a=1
b=-6
c=-126

x= $\frac{ -(-6)+/-\sqrt{(-6)^(2)-4(1)(-126)} }{2(1)}$
x= $( 6+/-√(36+504) )/(2)$
x= $( 6+/-√(540) )/(2)$
x= $( 6+/-6√(150) )/(2)$
x= $3+/-3√(150)$

the numbers are
$3+3√(150)$ and $3-3√(150)$

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a walking path across a park is represented by the equation y=-2x-7. a new path will be built perpendicular to this path. the paths will intercect at the point (-2,-3) . identify equation that represents new path

Help with this pls it’s about elements

Answers

Step-by-step explanation:

Pull out the even numbers from A to make B -4 34 14 and 42

now,,,,,any multiple of 7 from this list are also in C

14 and 42

Need help asap!Select the most precise and correct definition of parallel lines from among those that are given.

A.Two distinct lines are parallel if they are in the same plane and never intersect each other.

b.Two distinct lines are parallel if they point in the same direction.

c.Two distinct lines are parallel if one can be rotated to sit on top of the other.

Answers

Option (B) that is Two distinct lines are parallel if they are in the same plane and never intersect each other is correct.

What is a perpendicular line?

A Lines that intersect at a right angle are named perpendicular lines. Lines that are always the same distance apart from each other are known as parallel lines.

We know from the definition of the lines:

The line is a ray that goes infinitely from both sides.

In the perpendicular lines, they intersect at 90 degrees angles or right angles.

In the parallel lines, they never intersect and go parallel infinitely from both sides.

We have choices:

Choice A that is Two distinct lines are parallel if one can be rotated to sit on top of the other.

Choice B that is Two distinct lines are parallel if they are in the same plane and never intersect each other.

Choice C that is Two distinct lines are parallel if they point in the same direction.

The most precise and correct definition of parallel lines is two distinct lines are parallel if they are in the same plane and never intersect each other.

Thus, option (B) that is Two distinct lines are parallel if they are in the same plane and never intersect each other is correct.

Learn more about the perpendicular line here:

brainly.com/question/18271653

#SPJ2

The answer is B
Hope this helps! :)

NEED HELP ASAP.A linear function has a y-intercept of -12 and a slope of 3. What is the equation of the line?

Answers

Answer:

y = 3x - 12

Step-by-step explanation:

Hope This Helps!

Plz Mark Brainliest!

Devin has started a lawn care service. He will charge a mowing fee of $10 plus $3 per square yard of lawn. He also offers trimming service, at $8 plus $1 per yard of the perimeter. Using x for the length of the lawn and y for the width of the lawn which part of the expression 10+3xy+8+(2x+2y) represents the charge for the mowing?A. 8+(2x+2y)
B. (2x+2y)
C. 3xy
D. 10+3xy

Answers

Answer:

Option D is correct.

Charge for the mowing = 10 + 3xy

Step-by-step explanation:

here, x represents the length of the lawn and y represents the width of the lawn.

$\text{Area of lawn} = \text{length} * \text{width}$ = xy square yard

Perimeter of lawn = 2 (x+y) = 2x + 2y yard

As per the statement:

Devin has started a lawn care service. He will charge a mowing fee of $10 plus $3 per square yard of lawn.

then;

Charge for mowing = $10 + 3 \cdot \text{Area of lawn}$

= 10 + 3xy

Also, he offers trimming service at $8 plus $1 per yard of the perimeter.

⇒ Trimming service = $8 + 1 \cdot \text{Perimeter}$ = 8 + (2x +2y)

Therefore, from the expression: 10 + 3xy +8 + (2x+2y)

10 + 3xy represents the charge for the mowing.

Answer is D because he charge 10 $ mowing free +3 per square yard of lawn
lawn has dimensions:
x and y
Area= x*y=xy squar yard
so charge is
10 +3*Area=10+3xy

Can someone help me with these four please

Answers

Answer:

7:59 8:101 9:106 10:94

Step-by-step explanation:

7:180-121=59

8:they are the same

9:they are the same

10:180-86=94

if a number is a natural number, then it is also a whole number? what is the Inverse, the Converse, the Contrapositive, and the Bi-Conditional? and what is the Truth value for each one?

Answers

I believe you're learning geometry. Anyways, here are examples of natural numbers: 1, 2, 3... Meanwhile, here are examples of whole numbers: 0, 1, 2, 3... Natural numbers are all the positive whole numbers. Whole numbers are quantities that are both positive and neutral, and don't include any fractions or decimals.

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