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1 year ago

Find the slope of the line passing through the points (8,-4) and (-7, -4).

Mathematics

2 answers:

Elden [556K]1 year ago

7 0

Hi!

I can help you with joy!

If you notice, the y-coordinates of the points are the same.
This means the slope of the line is 0, because its rise is 0.
Let's use the slope formula:
$\displaystyle\frac{y2-y1}{x2-x1} \\\displaystyle\frac{-4-(-4)}{7-8}$
Simplify:
$\displaystyle\frac{-4+4}{-7-8}$
Simplify:
$\displaystyle\frac{0}{1}$

<u>Answer:</u>

The slope of the line is 0.

Hope it helps.

Do ask if you have any query.

Enjoy your day.

~Silent~

Tju [1.3M]1 year ago

6 0

Answer:

Step-by-step explanation:

slope=m=(Y2-Y1)/(X2-X1)

As given values

take, (X1,Y1)=(-7,-4)

(X2-Y2)=(8,8)

hence X1=-7 , Y1= -4 , X2=8 , Y2= 8

putt the values in the above equation of slope we get ,

m=(8-(-4))/(8-(-7)

m=12/15 Ans

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I need help with numbers 1-4 please if someone could help me

laila [671]

You can use the slope formula or just calculate
$\frac{rise}{run}$
So for the first problem you run 3 units right and rise 5 units so
$\frac{rise}{run} = \frac{5}{3}$
2. Notice the y axis goes by 2 units.
$\frac{ - 10}{4} = \frac{ - 5}{4}$
3.
$\frac{0}{12} = 0$
4.
$\frac{2}{0} = undefined$
Please let me know if you have questions

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3 years ago

A right circular cylinder has a height of 22 1/4 ft and a diameter 2 2/5 times its height. What is the volume of the cylinder? E

Triss [41]

Answer:

The volume of cylinder is:

49806.06 ft^3

Step-by-step explanation:

We are given a right circular cylinder with:

Height(h)= $22\frac{1}{4}ft=\dfrac{89}{4}ft$

and a diameter is $2\frac{2}{5}$ times it's height.

i.e. $\dfrac{12}{5}$ times it height.

i.e. the diameter is given as:

$\dfrac{12}{5}\times \dfrac{89}{4}=\dfrac{267}{5}ft.$

We know that the radius of cylinder is half the diameter.

Hence, radius(r) of cylinder is:

$\dfrac{1}{2}\times \dfrac{267}{5}\\\\=\dfrac{267}{10}$

The volume(V) of cylinder is given by:

$V=\pi r^2h$

$V=3.14\times (\dfrac{267}{10})^2\times \dfrac{89}{4}\\\\V=\dfrac{19922423.94}{400}\\\\V=49806.06ft^3$

Hence, the volume of cylinder is:

49806.06 ft^3

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3 years ago

What is 2/3 of 3/5 ?

Greeley [361]

Answer:

$\frac{2}{5}$

2/5

Step-by-step explanation:

to multiply fractions, multiply the numerators together and the denominators together:

$\frac{2}{3} x \frac{3}{5}$

$\frac{2*3}{3*5}$

$\frac{6}{15}$

$\frac{2}{5}$

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2 years ago

What are the formulas for trigonometry and pythagoras?

jasenka [17]

That's not a good question at all. It's a lot like asking
"What are the statements for News and President Obama ?"

There are at least a hundred formulas that are useful in trigonometry.
One of the most useful is:

In a right triangle, the square of the length of the hypotenuse
is equal to the sum of the squares of the two short sides.

Pythagoras is the name of the ancient Greek mathematician who
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2 years ago

Urgent please help..

Strike441 [17]

Answer:

b = 7√3

Step-by-step explanation:

This 30°- 60°- 90° triangle has the proportions:

side opposite of the 30° angle = x

side opposite of the 60° angle = x√3

side opposite of the 90° angle = 2x

____________________________

Given the side opposite of the 30° angle which is 7 units long, this can be thought of as x. Knowing the proportions of the other sides, we can find b knowing that this is the side opposite of the 60° angle which is x√3.

Since x = 7, x√3 = 7√3, and therefore

b = 7√3.

8 0

2 years ago