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
kipiarov [429]
3 years ago
14

A jar contains a mixture of 12 black marbles, 10 red marbles, and 18 white marbles, all the same size. If two marbles are drawn

from the jar without being replaced, what would the probability be of drawing two black marbles
Mathematics
1 answer:
ivann1987 [24]3 years ago
5 0
The probability will be :

C(12,2) / C(40,2) = 11/130, which is around 8.46%
You might be interested in
the 90 members of a service Club had the opportunity to vote for a club officers on Tuesday or Wednesday 3/5 of the members vote
oee [108]
For this problem, it is really important to find who voted on Tuesday first.
90×(3/5)= 54 
54 people voted on Tuesday. Since the people who voted on Wednesday was 1/4 of the members who did not vote on Tuesday.
90-54=36×(1/4)=9
9 people voted on Wednesday. Now add Tuesday and Wednesday together to find the ones that didn't vote.
54+9=63;90-63=27
27 people did not vote at all.
6 0
3 years ago
Read 2 more answers
Find the measures of an interior angle and an exterior angle of a regular 16-gon
Anastasy [175]

Answer:

2520°

Step-by-step explanation:

The sum of the angles in any triangle is 180°

shape. sides. triangles. sum int angles.

triangle. 180×1=180°

quad. 180×2=360°

pentagon. 180×3=540°

n-sides. n( n−2) 180(n−2)

16-sides. 180×14=2520°

7 0
3 years ago
What is the missing justification?
Vikki [24]

Transitive property is your answer

if ∠A ≅ ∠C, and ∠C ≅ ∠B then, ∠A ≅ ∠B

hope this helps

4 0
3 years ago
Read 2 more answers
Find the area of the circle. Use 3.14 for .<br> 80 yd<br> The area of the circle is about<br> yd2?
Aleksandr [31]

Step-by-step explanation:

A =nr²

=3.14 × (80/2)

=3.14 × 40

= 125.6yd²

5 0
3 years ago
Read 2 more answers
The perimeter of a rectangular field is 364 yards. If the width of the field is 84 yards, what is its length?
elena55 [62]

The perimeter of a rectangular field is 364 yards. If the width of the field is 84 yards, what is its length?


(364 : 2) - 84 =

182 - 84 =

98



3 0
3 years ago
Other questions:
  • What is the greatest common divisor of 24 &amp; 32
    10·1 answer
  • Last week Rachel and her roommates ate 1/3 of a carton of yogurt, and this week they ate 2/3 of a carton. How much more yogurt d
    11·2 answers
  • -onsider x + 4 = x + 8. What values could be substituted for x to make this a true
    5·1 answer
  • Help plz 15. and 16. math<br>explain and answer is on side already
    15·1 answer
  • Find the probability that a point in the circle chosen at random lies in the shaded region
    7·1 answer
  • Which set of number are right for this inequality x&lt;14 plz help me i need help due in 20 min
    12·1 answer
  • How many digits are there in the square root of 4456321?
    11·2 answers
  • Roger’s office building has a $320,000 value, a 2 rating, and a B building classification. The contents in the building are valu
    11·1 answer
  • The product of two consecutive natural numbers is greater than their sum by 109. Find these numbers
    9·1 answer
  • Write 7.63 × 10^–6 in an ordinary number.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!