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2 years ago

What is the slope of a horizontal line?

Mathematics

1 answer:

Misha Larkins [42]2 years ago

8 0

Answer:

Slope of a horizontal line. When two points have the same y-value, it means they lie on a horizontal line. The slope of such a line is 0, and you will also find this by using the slope formula.

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What is z equal too ? please help me !!! thanks 10 points asap !!!

wariber [46]

Z would mean 0 considering they would both be the last

5 0

2 years ago

A circle has a radius of 18 and a center at (10,-9). Find the equation of the circle.

gulaghasi [49]

Answer:

(x-10)²+(y+9)²= 324.

Step-by-step explanation:

For this question, you will need to substitute these values into the equation of a circle:

(x-h)²+(y-k)²= r²

'h and k' represent the center points, and 'r' represents the radius.

This will result in:

(x-10)²+(y+9)²=324.

4 0

2 years ago

Your school wants to take out an ad in the paper congratulating the basketball team on a successful season, as shown to the rig

iogann1982 [59]

Answer:

$x_1 =-14.43 in, x_2 = 2.426in$

Since the measurement can't be negative the correct answer for this case would be $x =2.426 in$

Step-by-step explanation:

Let's assume that the figure attached illustrate the situation.

For this case the we know that the original area given by:

$A_i = 7 in *5 in = 35in^2$

And we know that the initial area is a half of the entire area in red $A_i = \frac{A_f}{2}$ , so then:

$A_f = 2 A_ i =2*35 = 70$

And we know that the area for a rectangular pieces is the length multiplied by the width so we have this:

$70 = (x+7) (x+5)$

We multiply both terms using algebra and the distributive property and we got:

$70 =x^2 +12 x +5$

And we can rewrite the expression like this:

$x^2 +12 x -35 = 0$

And we can solve this using the quadratic formula given by:

$x = \frac{-b \pm \sqrt{b^2 -4ac}}{2a}$

Where $a = 1, b =12 and c=-35$ if we replace we got:

$x = \frac{-12 \pm \sqrt{(12)^2 -4(1)(-35)}}{2*1}$

And the two possible solutions are then:

$x_1 =-14.43 in, x_2 = 2.426in$

Since the measurement can't be negative the correct answer for this case would be $x =2.426 in$

3 0

2 years ago

Darlene's room measures 12feet on ones side and 9 feet on another, help her calculate the area of her room. The area if a rectan

IrinaK [193]

Answer:

108 ft²

Step-by-step explanation:

The product of length and width is ...

(12 ft)(9 ft) = 12·9 ft·ft = 108 ft²

8 0

2 years ago

Simultaneous Equation (x+5)(x+2)=65 , xy=24 Plssss help me ✌

Ne4ueva [31]

Answer:

(-11.70, -2.05), (4.70, 5.10)

Step-by-step explanation:

Given equations

(x+5)(x+2)=65
xy=24

Solving the first equation for x:

(x+5)(x+2)=65
x^2 + 7x + 10 = 65
x^2 + 7x - 55 = 0
x = (-7 ± √(49+4*55))/2
x = -11.70, x = 4.70

Then solving for y:

y= 24/(-11.7) = -2.05
y = 24/4.7 = 5.10

Solution set:

(-11.70, -2.05), (4.70, 5.10)

7 0

2 years ago