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
Darya [45]
2 years ago
13

One marble is randomly drawn and then replaced from a jar containing two white marbles and one

Mathematics
1 answer:
melisa1 [442]2 years ago
4 0

Answer:

1/3.

Step-by-step explanation:

Prob(Drawing white marble) = 2/3

Prob(Drawing a black marble on second draw ) =  1/2

So:

Prob(Drawing a white then a red marble) = 2/3 * 1/2

= 2/6

= 1/3.

You might be interested in
A woman 5 ft tall walks at the rate of 7.5 ft/sec away from a streetlight that is 10 ft above the ground. At what rate is the ti
lesya [120]
Height of the woman = 5 ft
Rate at which the woman is walking = 7.5 ft/sec
Let us assume the length of the shadow = s
Le us assume the <span>distance of the woman's feet from the base of the streetlight = x
</span>Then
s/5 = (s + x)/12
12s = 5s + 5x
7s = 5x
s = (5/7)x
Now let us differentiate with respect to t
ds/dt = (5/7)(dx/dt)
We already know that dx/dt = 7/2 ft/sec
Then
ds/dt = (5/7) * (7/2)
        = (5/2)
        = 2.5 ft/sec
From the above deduction, it can be easily concluded that the rate at which the tip of her shadow is moving is 2.5 ft/sec. 
8 0
3 years ago
The equation below represents the trend line of a scatter plot showing the hours spent studying versus science test scores.
navik [9.2K]

Answer:

On the science test  the point  ( 0 , 424 ) the intercepts is bigger

Step-by-step explanation:

The relation hours spend vs science test score is

y  =  6.5*x  + 424

And the relation hours spend vs Maths test score is

y  =  7.2*x   + 34.7

Making   x =  0  ( student does not study at all ) we get:

For science score test woul be

y  =  0  + 424

In case of maths

y  =  0  + 34.7

That mean student without studying will get better score in science.

The point  ( 0 , 424)   ( science ) represents the interception with y axis

in Maths case such point is  ( 0 . 34.7)

7 0
3 years ago
Read 2 more answers
Increase £40 by 5percent
natulia [17]
40(105/100)=42
.........................

5 0
3 years ago
At a track meet Sammy finished the race in 25.98 seconds. Tom finished the 100 meter race in 12.54 seconds. Which runner ran the
Basile [38]

Answer: Sammy


Step-by-step explanation: If Tom finished the 100 meter race in 12.54 seconds that means he would have been going at an average of 7.97 seconds and if Sammy is finishing a 100 meter race in 25.98 seconds he would have been going at an average of 3.84. Therefore Sammy is going at a faster average.


Hope this helps!


5 0
3 years ago
According to research, how does the public view children and teens with mental health disorders? Group of answer choices A stati
Liono4ka [1.6K]

According to research, the public views children and teens with mental health disorders as over 1,300 U.S. adults believe children with depression are prone to violence

Answer: Option B

<u>Explanation:</u>

Most Americans trust that the people count has increased with mental health disorders in the last 20 years (69 %) and that is a major health issue in the US (89 %) according to the results of survey. They believe that mental health disorders are caused by physical disorders (like brain’s chemical imbalance or due to environmental criteria (daily stress or alcoholism / abuse of drugs).

Over nine out of ten respondents cited those factors as typical causes for mental health disorders. When asked about the most common causes of this, nearly 27 % reported chemical brain imbalances and stress in their daily lives, and 20 % reported alcohol or drug abuse.

7 0
3 years ago
Other questions:
  • Math need to simplify the expression
    13·2 answers
  • A rectangular box has a length of 8 feet and a width of 2 feet. The length of the three-dimensional diagonal is 10 feet. What is
    6·1 answer
  • the sum of 2 numbers is 7 the larger number is 16 more than 2 times the smaller number what are the numbers
    9·2 answers
  • What is the probability of flipping a coin 4 times and it landing heads every time?
    10·1 answer
  • Please let me know asap
    5·1 answer
  • Can you guys help me find the domain? (finding the domain graphically)
    9·1 answer
  • A line that includes the point (10,7) has a slope of 1. What is it's equation in slope-intercept form? ​
    8·1 answer
  • How young am I if you get it right I will mark you Brainliest
    10·2 answers
  • A survey asked a group of students to choose their favorite type of music from the choices of rock, hip-hop, and country. The re
    11·1 answer
  • Emergency!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!