1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Klio2033 [76]
3 years ago
8

Radius OA of circle O has a slope of 2.5. What is the slope of the line tangent to circle O to point A?

Mathematics
2 answers:
mixer [17]3 years ago
5 0
The tangent at A is perpendicular to OA, so has a slope that is the negative reciprocal of that of the radius: -1/2.5 = -2/5.
Mekhanik [1.2K]3 years ago
4 0

Answer:  The required slope of the line tangent to the circle at point A is -0.4.

Step-by-step explanation:  Given that the radius OA of a circle with center O has a slope of 2.5.

We are to find the slope of the line tangent to the circle at the point A.

We know that

The radius of a circle at a point on the circumference of a circle is perpendicular to the tangent line at the same point on the circumference of the circle.

Also, the product of the slopes of two perpendicular lines is -1.

So, if m is the slope of the tangent line at the point A, then we must have

m\times 2.5=-1\\\\\Rightarrow m=-\dfrac{1}{2.5}\\\\\\\Rightarrow m=-\dfrac{10}{25}\\\\\Rightarrow m=-\dfrac{2}{5}\\\\\Rightarrow m=-0.4.

Thus, the required slope of the line tangent to the circle at point A is -0.4.

You might be interested in
Solve each system<br> 7) 8x-y=3<br> y=-8x - 3<br> Please help
fenix001 [56]

Answer:

i cant answer this because of my school computer but its simple

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Dale is in a ski rental shop trying to decide which equipment to rent for the day. The shop offers 4 kinds of skis and 3 kinds o
Hoochie [10]

Answer:

96

Step-by-step explanation:

Simply multiply all the numbers together.

4 * 3 = 12

12 * 8 = 96

There are 96 possible combinations.

If this helped, please mark brainliest :D

7 0
2 years ago
Read 2 more answers
A parallelogram has sides of length 30 centimeters and 18 centimeters. One of its angles measure 58 degrees. Which is the best e
Elanso [62]

Answer:

D

Step-by-step explanation:

I'm assuming you're looking for area here.

The formula is b * h = A

So all you're doing is multiplying 30 by 18 to get 540.

3 0
2 years ago
On a hot day, Ava poured 1/4 of a bucket of water into a plastic wading pool.a few minutes later she added another 1/3 of a buck
faltersainse [42]

Answer:

7/12

Step-by-step explanation:

4 x 3 = 12 (LCD)

3/12 + 4/12 = 7/12

No simplifying done,

7/12 is the answer.

Hope this helped :)

5 0
2 years ago
An airplane on autopilot took 5 hours to travel 3,475 kilometers, what is the unit rate?
tia_tia [17]
Km/h kilometre per hour
8 0
2 years ago
Other questions:
  • Helppppppppppppppppp
    15·2 answers
  • the falcon has been clocked in a dive at 200 miles per hour. How many feet per second did the bird travel?
    8·2 answers
  • Simplify the expressions if it is possible. if the expression is already simplified write the word simplified.
    13·1 answer
  • 10 11/35 divided by 3 4/5
    15·1 answer
  • What is the midpoint between (−9 − i) and (4 + 5i) on the complex plane
    11·1 answer
  • What is the sum of 2/7 and 3/9?​
    12·1 answer
  • Please answer I’ll rate brainlyest
    15·2 answers
  • How do you do this I’m in 9th grade
    6·1 answer
  • Savannah needs to order some new supplies for the restaurant where she works. The
    13·1 answer
  • An unknown polynomial is added to the expression -3x^3+2x-5 and the resulting sum is 4x^3+7x^2-3. what is the unknown polynomial
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!