All categories

1 year ago

The points (1,-10) and (r,2) fall on a line with a slope of 2 what is the value of r.

Mathematics

1 answer:

zalisa [80]1 year ago

3 0

The value of r in the given coordinates with their slope is; r = 7

How to find the Slope of a Line?

The formula for slope of a line passing through 2 points is;

m = (y2 - y1)/(x2 - x1)

We are given the coordinates as;

(1,-10) and (r,2)

The slope of the line passing through this coordinates is 2. Thus;

(2 + 10)/(r - 1) = 2

12 = 2r - 2

2r = 14

r = 14/2

r = 7

Read more about Slope of a Line at; brainly.com/question/3493733

#SPJ1

You might be interested in

Give coordinates of the point where x = 3. Explain what the point represents in this situation:

Ronch [10]

Answer:

if x=3 then y is o

(3,0) is the coordinate points if y is 0

4 0

3 years ago

Ruby wanted to get an iPod for 350$ she already had 52$ saved and if she worked for 8 hours a week for 9$ an hour how many weeks

WARRIOR [948]

Answer:

I believe that the answer is 4.13 weeks

Step-by-step explanation:

Since she already has $52 you can automatically start by doing:

$350 - $52 = $298

Since she works 8 hours a week and earns $9 per hour:

8 hours x $9 = $72

Then, take $298 ÷ $72 = 4.13 or about 4 weeks

I divide 298 by 72 because $72 is how much she will earn per week, and by dividing this number by the total amount that she has left to pay narrows it down to about how long she has to save for.

Hope this helps!!

4 0

3 years ago

For his phone service, Tom pays a monthly fee of $28, and he pays an additional $0.04 per minute of use. The least he has been c

Len [333]

Answer:

1421 minutes

Step-by-step explanation:

(84.48-28)/.04=M

84.48-28=56.48

56.48/.04=1421

6 0

3 years ago

Mr.Hall stands 200 meters from the base of the water tower. He finds the angle of elevation to the top of the water to be 27 deg

love history [14]

Height of the tower = 101.9 m

Solution:

Given data:

Angle θ = 27°

Adjacent side = 200 m

Opposite side = Height

Let height be taken as h.

The given image shows it is a right triangle.

Using basic trigonometric ratio formulas,

$$\tan \theta=\frac{\text { Opposite side of } \theta}{\text { Adjacent side of } \theta}$

$$\tan27^\circ =\frac{{ h}}{200}$

The value of tan 27° = 0.5095

$$0.5095 =\frac{{ h}}{200}$

Do cross multiplication, we get

0.5095 × 200 = h

101.9 = h

Height of the tower = 101.9 m

8 0

3 years ago

Pls solve.. URGENT!!! Will give brainliest.<br>EXPLAIN IN STEPS<br><br>links will be reported

strojnjashka [21]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

Length of each side of each of these three equilateral triangle is :

$1.5 \: \: cm$

Solution is in attachment ~

8 0

3 years ago