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
Likurg_2 [28]
3 years ago
15

Jennifer is taking a four question multiple choice test. each question has four possible answers. if she guesses on all of the q

uestions, what is the probability that she gets three of the four questions correct? [round to three decimal places.]
Mathematics
1 answer:
xxTIMURxx [149]3 years ago
6 0
Probability of getting the correct answer in the first question is 1/4
probability of getting the correct answer in the second question is 1/4
probability of getting the correct answer in the second question is 1/4                 the probability that he gets one question wrong is 3/4
which is 1/4*1/4*1/4*3/4=3/256
for the four questions because he may get the first answer correct and my be the second question wrong, or the the third wrong and the other correct or the first wrong and others correct we should take care of all this by
multiplying 3/256*4=12/256
                               =0.046875
in three decimal places we have 0.047
You might be interested in
(2,-1) <br> y-intercept -3 <br> slope 1/2<br><br> Write an equation with the given info above.
jek_recluse [69]

y-intercept -3  

slope 1/2

is sufficient info with which to write an equation for a straight line:

y = mx + b becomes y = (1/2)x - 3.

You should check this by determining whether or not (2,-1) satisfies this equation.

4 0
2 years ago
(13 points) (geometry) plz help last question and its due at midnight
Nezavi [6.7K]

Answer:

a. Second Option

b. Second Option

c. Third Option

d.ASA

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
I hate math bro please help me ill mark u brainliest
yulyashka [42]
Please mark me brainless :)
5 0
3 years ago
2x + y = 6<br> y = 3x + 4 <br> What is the resulting equation?
Aleksandr-060686 [28]
2x+3x+4=6
5x+4=6
5x=2
x=1.5?
7 0
3 years ago
Read 2 more answers
William invested $12,000 in a bank account that pays 9 percent simple interest. His friend invested the same amount at another b
yarga [219]
<h3>Answer: B) 1.0 year</h3>

===========================================================

Explanation:

We have these two functions

  • f(t) = 12(1.02)^(4t)
  • g(t) = 12(1.09)t

which represent the amounts for his friend and William in that order. Strangely your teacher mentions William first, but then swaps the order when listing the exponential function as the first. This might be slightly confusing.

The table of values is shown below. We have t represent the number of years and t starts at 0.5. It increments by 0.1

The f(t) and g(t) columns represent the outputs for those mentioned values of t. For example, if t = 0.5 years (aka 6 months) then f(t) = 12.48 and that indicates his friend has 12,480 dollars in the account.

I've added a fourth column labeled |f - g| which represents the absolute value of the difference of the f and g columns. If f = g, then f-g = 0. The goal is to see if we get 0 in this column or try to get as close as possible. This occurs when we get 0.09 when t = 1.0

So we don't exactly get f(t) and g(t) perfectly equal, but they get very close when t = 1.0

It turns out that the more accurate solution is roughly t = 0.9925 which is close enough. I used a graphing calculator to find this approximate solution.

It takes about a year for the two accounts to have the same approximate amount of money.

4 0
3 years ago
Other questions:
  • Hershel had 100 baseball cards that he labeled from 1-100. He started with number
    7·2 answers
  • If there is an increase in the money supply that causes money to lose its
    12·2 answers
  • I need help please ASAP i will mark branlist
    5·1 answer
  • What are two consecutive numbers whose cubes differ by 331
    8·1 answer
  • Determine whether the relation shown is a function. Explain how you know.
    15·2 answers
  • find the probability of being delt 5 clubs and 3 cards with one of each remaining suit in 8 card poker
    9·1 answer
  • Which of the following illustrates the inverse property of addition?
    12·1 answer
  • Find the multiples of 9 that are less than 100
    10·2 answers
  • HELP PLEASEE FOR HW!!!
    11·2 answers
  • How do you use slope-intercept (y= mx + b) equations to graph?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!