answer.
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
Tatiana [17]
2 years ago
8

Can anyone please help me with this question? : A target consists of two concentric circles. The larger circle has diameter 1m.

When a complete novice fires at the target, the probability of hitting the blue circle is the same as the probability of hitting the green region. Find the diameter of the blue circle.

Mathematics
1 answer:
11111nata11111 [884]2 years ago
5 0
We know that
if  <span>the probability of hitting the blue circle is the same as the probability of hitting the green region
then 
the area of the blue circle is equal to the area of the green region

Let
x----> diameter of the blue circle

area of the blue circle=pi*(x/2)</span>²----> (pi/4)*x² m²-----> equation 1

area of the green region=area of the larger circle-area of the blue circle
area of the green region=pi*(1/2)²-(pi/4)*x²
=(pi/4)-(pi/4)*x² m²----> equation 2

equate equation 1 and equation 2
(pi/4)*x²=(pi/4)-(pi/4)*x² -----> divide by (pi/4)---> x²=1-x²
2x²=1-----> x²=1/2----> x=1/√2-----> x=√2/2 m

the diameter of the blue circle is √2/2 m


You might be interested in
What proportion results in the equation 9m=10n
Serhud [2]
Give the equation 9m = 10n

Dividing both sides by 9n, we have
\frac{9m}{9n} = \frac{10n}{9n}  \\  \\  \frac{m}{n} = \frac{10}{9}

Therefore, the <span>proportion that results in the equation 9m = 10n is
\frac{m}{n}=\frac{10}{9}
</span>
4 0
2 years ago
Read 2 more answers
Efectuati impartirea 12xy:3x
adelina 88 [10]

In this question , we have to simplify the given ratio, which is

12xy:3x

First we have to see which factor is common in numerator and denominator,

We can write 12 as 3 times 4, that is

3*4x*y :3x

So the common factor is 3x.

In the next step, we cancel out 3x

4y:1

And that's the required simplified form .

7 0
2 years ago
Read 2 more answers
A line has a y-Intercept of -11 and slope of 0.25. Write it's equation in slope-intercept form.
Karo-lina-s [1.5K]
Could you give me an example of a slope-intercept form? like the formula then I'll be able to help
5 0
2 years ago
Read 2 more answers
Tyler is planning to buy a new car. He intends to trade in his existing car, a 2002 Chrysler Sebring in good condition. Using th
alexdok [17]

Answer:

a. $3,260.

Step-by-step explanation:

Tyler is planning to buy a new car. He intends to trade in his existing car, a 2002 Chrysler Sebring in good condition. Using the table below, we need to estimate about how much Tyler’s car is worth.

Given table is

Model/Year 2000    2001   2002   2003   2004

Pacifica   $2,194  $2,288 $2,605 $2,690 $2,814

Concorde   $1,842  $1,998 $2,180 $2,781 $2,925

Sebring    $2,920  $3,075 $3,260 $3,551 $3,912

300M       $2,770  $2,934 $3,095 $3,188 $3,676


Given choices are:

a. $3,260

b. $2,920

c. $2,605

d. $3,188


"2002 Chrysler Sebring" means look for the column of table which has year 2002. Then look for the row of the table which says "Sebring". Now we see that both rows and columns intersect at value $3,260.

Hence final answer is a. $3,260.

6 0
2 years ago
Read 2 more answers
clara compro 3/4 de kilo de manzanas, una libra de peras y determinada cantidad de durasnos.si el peso total de la fruta fue 3 3
victus00 [196]
Esto te ayudaria es el primero

7 0
2 years ago
Other questions:
  • Anna wants to take fitness classes. She compares two gyms to determine which would be the best deal for her. Fit Fast charges a
    6·2 answers
  • Write 11,760,825 in word form and expanded form
    8·1 answer
  • The farthest distance a satellite signal can directly reach is the length of the segment tangent to the curve of Earth's surface
    10·1 answer
  • A volunteer is organizing the snacks at a concession stand and notices the ratio is sweet snacks to salty snacks is 5:1. If ther
    6·1 answer
  • Hilda was simplifying some numerical expressions and made each of the following sequences of calculations. Name the mathematical
    9·2 answers
  • In 2012, Gallup asked participants if they had exercised more than 30 minutes a day for three days out of the week. Suppose that
    12·1 answer
  • A ceiling fan rotates 145° and stops. The fan stops how many degrees short of a full rotation?
    7·1 answer
  • Write the following numbers in order of size.
    5·2 answers
  • Work out the length of AB.<br> Give your answer to 3 significant figures.<br> A=(-1,6) B=(5,3)
    13·1 answer
  • You are signing up for a new gym on New Year's Day. Two gyms memberships have different payment plans. Gym A has a $60 signup fe
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!