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2 years ago

Which option best shows X < -15 Please explain as well, thanks! :)

Mathematics

1 answer:

romanna [79]2 years ago

3 0

Answer:

The line going to the left aka the negative side!

X < -15 means X is less than -15

The line's purpose is to to show the possibilities of X.

So all the numbers lower than -15 are all possibilities of X. (Example: -16, -17 or -20 would be a possibilty of X because they are less than -15!)

Anything going above -15 is not a possibility of X (Example: -14, -13, or 2 are not possibilities of X as they are greater than -15!)

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The ramp measures 20 feet long and is 5 feet from the ground what is the slope of the ramp?

Gelneren [198K]

First we need to find how far away the base of the ladder is from what it is leaning against. The ramp is the hypotenuse and the height from the ground in a leg. Let’s use Pythagorean’s theorem.

a^2 + b^2 = c^2

Substitute

a^2 + (5)^2 = (20)^2

Solve for a^2

a^2 = (20)^2 - (5)^2

Solve for a

a = 5 √15

The slope will be rise over run

5/5 √15 = √15/15 or 0.258…

4 0

2 years ago

Kyle notices that the number of likes he receives each day on his social media page is a function. He decides to create a graph

12345 [234]

Answer:

B) y=12x

Step-by-step explanation:

We are given with the coordinates $(0,0) , (1,12) \ and \ (2,24)$

Where $x$ represents the number of days.

$y$ represents the number of likes she got.

To model the equation using Kyle's data we find the slope using the given coordinate.

Let us say $(0,0) \ as \ (x1 , y1)$ and $(1,12) \ as \ (x2,y2)$

Slope $(m)$ formula , $m=\frac{(y2-y1)}{(x2-x1)}$

Plug in the above points now, we get

$m=\frac{(12-0)}{(1-0)} =\frac{12}{1} =12$

Now we use the point-slope formula, $(y-1)= m(x-x1)$

Plugging the corresponding values.

$(y-0)= 12(x-0)\\y=12x$

Thus option is B is the correct answer.

5 0

3 years ago

What is the length of a segment in the complex plane with endpoints at 4 + 2i and 7 – 2i?

ira [324]

Answer:

Step-by-step explanation:

The complex number 4 + 2i on the complex plane has coordinates (4,2) and the complex number 7 - 2i has coordinates (7,-2). Thus, the length of a segment in the complex plane with endpoints at 4 + 2i and 7 – 2i is

$\sqrt{(4-7)^2+(2-(-2))^2}=\sqrt{(-3)^2+4^2}=\sqrt{9+16}=\sqrt{25}=5.$

6 0

3 years ago

Read 2 more answers

Divide 240g in the ratio 5:3:4

Hoochie [10]

Answer:

100g : 60g : 80g

Step-by-step explanation:

5+3+4 =12 total parts

(5/12 of 240)

5/12 x 240 = 100g

3/12 x 240 = 60g

4/12 x 240 = 80g

Check:

100g + 60g + 80g = 240g

Hope this helps!

6 0

2 years ago

I need help plz i dont understand

sveta [45]

Line 1 is parallel and slope -1.33333 or -4/3
Line 2 is parallel and slope 0.75 or 6/8
Line 3 is parallel and slope 0.75 or -3/-4 i got the answers on Omni calculator

7 0

2 years ago