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
Vadim26 [7]
2 years ago
11

AB is a tangent. Find the length of the radius, r.

Mathematics
1 answer:
Lena [83]2 years ago
4 0

Answer: 8

Step-by-step explanation:

Since AB is a tangent, angle CAB is a right angle. Thus, by the Pythagorean theorem, r=\sqrt{17^{2}-15^{2}}=8

You might be interested in
g Bonus: Assume that among the general pediatric population, 7 children out of every 1000 have DIPG (Diffuse Intrinsic Pontine G
patriot [66]

Answer:

0.9586

Step-by-step explanation:

From the information given:

7 children out of every 1000 children suffer from DIPG

A screening test designed contains 98% sensitivity & 84% specificity.

Now, from above:

The probability that the children have DIPG is:

\mathbf{P(positive) = P(positive \  |  \ DIPG) \times P(DIPG) + P(positive  \ | \  not \DIPG)\times P(not  \ DIPG)}= 0.98\imes( \dfrac{7}{1000}) + (1-0.84) \times (1 - \dfrac{7}{1000})

= (0.98 × 0.007) + 0.16( 1 - 0.007)

= 0.16574

So, the probability of not having DIPG now is:

P(not \ DIPG \  |  \ positive) = \dfrac{ P(positive  \ | \  not DIPG)\timesP(not \  DIPG)} { P(positive)}

=\dfrac{ (1-0.84)\times (1 - \dfrac{7}{1000}) }{ 0.16574}

=\dfrac{ 0.16 ( 1 - 0.007) }{0.16574}

= 0.9586

8 0
3 years ago
Express (x-9)^2 as trinomial in standard form
Ray Of Light [21]

{x}^{2}  - 18x + 81
5 0
4 years ago
Read 2 more answers
A(x + 1) - b(x + 1) - x - 1
Andrei [34K]

Answer:

Step-by-step explanation:

Solution

I'm assuming you want this simplified. If not leave a note.

a(x + 1) - b(x + 1) - x - 1                     remove the brackets

ax + a - bx - b - x - 1                        gather like terms

ax - bx - x + a - b - 1

x(a - b - 1)  + (a - b - 1)                      Use the distributive property to simplify

Answer

(x + 1)(a - b - 1)

The common factor is (a - b - 1). That can be pulled out on either side of the isolated + sign

8 0
2 years ago
Wave erosion causes a certain coastline to recede at a rate of 3 centimeters each year. This occurs uninterruped for a period of
Travka [436]
The expression 8(-3) represents the recession of the coastline after 8 years if the coastline recedes 3 centimeters each year. 8(-3)=-24. So, the coastline's new position is 24 centimeters farther inland than it was 8 years ago.
answer= 24
4 0
3 years ago
Read 2 more answers
Michael drove 210 miles using 9 gallons of gas. At this rate, how many gallons of gas would he need to drive 413 miles?
Mkey [24]

Answer:

210x=3717

x-3717/210

x=7.7 gal1

Step-by-step explanation:


3 0
3 years ago
Other questions:
  • Donna invested $1,200 at 7% for 3 years. What will Donna's investment be worth at the end of the 3 years?
    11·1 answer
  • What is the product of( 2x^2+4x-2) and (3x+6)
    7·2 answers
  • The temperature at a ski resort was 12°F at 5:00 A.M. If the temperature increased by 1.5°F each hour, what would be the tempera
    6·1 answer
  • What is 4/5 equal to?
    10·1 answer
  • Find the sum of 29,the product of 2 and 9 and the difference between 2 and 9<br>​
    15·1 answer
  • Each book in a store costs $8, and each pen costs $4. If you want to spend exactly $32, write the equation, in standard form, th
    14·1 answer
  • A piece of pizza with a diameter of 20 inches is eaten and m
    8·1 answer
  • Please help on this...<br> Fine the perimeter and the area of this.
    7·2 answers
  • What’s the rate of change of the table above? <br> A) -1/3<br> B) 1/2<br> C) -1/4<br> D) 1/5
    6·1 answer
  • In the diagram, the length of segment AB is 10 units and the radius of the circle centered at A is 4 units. Use this to create t
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!