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
kogti [31]
3 years ago
14

A bag contains 8 red marbles, 3 blue marbles, and 1 green marble. What is the probability that a randomly selected marble is not

blue? ​
Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
4 0

Answer:

.75

Step-by-step explanation:

8 red marbles, 3 blue marbles, and 1 green marble = 12 marbles

P( not blue) = marbles that are not blue / total

                     =(8red+1 green) / 12

                     =9/12

                      = 3/4

                       .75

You might be interested in
Find the conjugate of the complex number, use division:<br> 2+i<br> ——<br> 1+i
Fittoniya [83]

I assume you mean divide using the conjugate to rationalize the denominator and express the result in standard rectangular form.

\dfrac{2+i}{1+i} = \dfrac{2+i}{1+i} \cdot \dfrac{1-i}{1-i} = \dfrac{2(1)-i^2-2i+i}{1^2+1^2} = \frac 3 2 - \frac 1 2 i


4 0
3 years ago
What is 1 3/8 close to?
kozerog [31]
It depends what your trying to get close to. If your trying to get close to a number that is easier to work with 1 4/8 is good because its the same as 11/2 but the closest whole number is 1.
6 0
3 years ago
What is the defination of the focus when referring to a parabola?
Len [333]

Answer:

Focus of a Parabola. A parabola is set of all points in a plane which are an equal distance away from a given point and given line. The point is called the focus of the parabola and the line is called the directrix. The focus lies on the axis of symmetry of the parabola.

Step-by-step explanation:

6 0
3 years ago
A train leaves at 11:32 and arrives at 13:24. It travelled at an average speed of 85 km/h.
Blababa [14]

Answer:

<h2>33.2Km</h2>

Step-by-step explanation:

<h3>Time used for journey = </h3>

13 : 24 - 11 : 32 = 1 : 92

1 : 92 = 1 hour 92 minutes

1 hour 92 minutes = 2 hours 32 minutes

<h3>changing 32 minutes to hours</h3>

1 h = 60 min

x = 32 min

x= 32 /60

x= 8/15 hours

<h3>Adding the 2hours to 8/15 hours</h3>

8/15 h + 2 h = 38 / 15

<h3>Using formula for distance</h3>

Distance = Speed × Time

Distance = 85km / h × 38 /15 h

Distance = 33.15 km

To 1DP = 33.2

3 0
2 years ago
The height in feet of a water rocket launched from the ground is given by the function h(t) = -16t^2 + 96t where t represents th
Mazyrski [523]
<span>The biggest height is 144 ft at t = 3 seconds.</span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Hey can somebody help me? I know it seems easy but I forgot the process on how to do this. Thanks in advance!
    10·1 answer
  • -3x - 8 + 6x = 7 wat is the answer
    6·2 answers
  • If ( 2 x 1) (0 x -1) = ( 15 ), then the value of x is
    6·1 answer
  • Identify the exponent in the term –3x 2 . A. 3 B. x C. 2 D. minus sign (–)
    15·1 answer
  • How many 1 ft2 tiles do you need for the flooring of a room that is 13 ft by 13 ft?
    7·2 answers
  • A baseball player swings at the ball 56 times over a season and hits 16 times.
    15·1 answer
  • C added to 45 as a algebraic expression
    12·2 answers
  • 4. If f(x) = 2x + 4y and g(x) = 2x2 -3x + 6y, find g(x) – f(x)
    11·1 answer
  • I need help on this pre-calculus function about domain and range.​
    13·1 answer
  • Because it is three-dimensional, a form has these three spatial measurements: height, width, and ________.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!