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
AURORKA [14]
3 years ago
15

The sides of ∠A are tangent to circle k(O) with radius r. Find: r, if OA=14 dm, m∠A=90°.

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
6 0

Answer:

r = √98

Step-by-step explanation:

angle A and the diameter form an isosceles right triangle, with OA as the hypotenuse and r as the other sides. You can then make and solve an equation from the Pythagorean Theorem:

r^2 + r^2 = 14^2

2r^2 = 14^2

2r^2 = 196

r^2 = 98

r = √98

Anvisha [2.4K]3 years ago
4 0

Answer:

Step-by-step explanation:

Alright, lets get started.

Please refer the diagram I have attached.

The angle A is 90 degree.

The side OA is 14.

There will be a right triangle formed.

So, Using Pythagorean theorem,

r^2+r^2=14^2

2r^2=196

Dividing 2 in both sides

r^2=\frac{196}{2}=98

r=\sqrt{98}

r=7\sqrt{2}

So,the answer is 7\sqrt{2}     :     Answer

Hope it will help :)

You might be interested in
the width of a rectangle is 11 units less than the length. if the area is 152 square units, find the dimensions of the rectangle
gregori [183]
Answer
Width=8
Length=19
8 0
3 years ago
Explain the process of finding the product of two integers
kompoz [17]
If you have two negatives they cancel each other out and make a positive. The  same if you have to positives the product will be positive. If you have a negative and a positive you multiply the numbers and bring down the negative. Same if you have a positive and a negative. Only two negatives cancel each other out, same with positives. For example -4(-5)(-1) you would use order of operations, 4 and the 5 cancel each other out and you multiply 20 by -1 which is -20 since you bring down the negative.

4 0
3 years ago
Read 2 more answers
Simplify the expressions.
emmasim [6.3K]

Answer:

A. 17x  B. -18b2+11b

Step-by-step explanation:

10x + 7x = 17x

7-7=0

answer is 17x

-8b2-10b2= -18b2

8b+3b=11b

6-6=0

answer is -18b2+11b

6 0
3 years ago
Read 2 more answers
At the beginning of its route, a garbage truck accelerates at 10ms2 as it is driven down the road. By the end of the route, the
Dmitry [639]

Answer:

2.5\ m/s^2

Step-by-step explanation:

Newton's Second Law: Force on a body is equal to the product of mass and acceleration of the centre of the mass of the body.

Force(F)=Mass(m)\times Acceleration(a)

Initially:

Let\ mass=m\ kg\\\\acceleration=10\ m/s^2\\\\Force(F)=m\times 10=10m

At the end of the road:

Let\ mass=4\times m\ kg\\\\acceleration=a\ m/s^2\\\\Force(F)=4m\times a=4ma

Both\ forces\ are\ equal\\\\4ma=10m\\\\divide\ both\ the\ sides\ by\ m\\\\4a=10\\\\a=\frac{10}{4}\\\\a=2.5\ m/s^2

8 0
2 years ago
Select all that are equivalent to the repeating decimal
Brrunno [24]

Answer:

8/24

Step-by-step explanation:

8/24 = 1/3 = 0.33333333...

8 0
2 years ago
Other questions:
  • What is the range of the function represented by these ordered pairs?
    7·2 answers
  • The life expectancy of a circulating coin is 20 years. The life expectancy of a circulating dollar bill is only 1/20 as long. Fi
    5·2 answers
  • What is the constant term of 2 + 0.25 x
    8·1 answer
  • A basic variable in a linear system is a variable that corresponds to a pivot column in the coefficient matrix. Is this statemen
    11·1 answer
  • 3 cups of flour is 1 1/2 teaspoon of vanilla how many vanilla is there if there’s 5 cups of flour
    14·1 answer
  • 11. 4p2 + 7p + 3<br> factoring equations
    11·2 answers
  • Urgent math question, 10 points for a solve.
    5·1 answer
  • What is 25√54+5√24 in simplified radical form?
    6·1 answer
  • if 405 is to be divided among three persons A, B, C in the ratio of 3:5:7, how much money does each one get? Express them in per
    8·1 answer
  • PLEASE HELP ME I NEED HELPPPO
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!