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]
2 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]2 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
Question 2 of 5
andriy [413]

Answer:

B

Step-by-step explanation:

5 0
3 years ago
X^2+3x-10 will be zero when x equals
Anit [1.1K]

Answer:

Answer: x equals to 2 and -5

Step-by-step explanation:

{ \tt{ {x}^{2} + 3x - 10 = 0 }}

» Factorise the equation quadratically:

{ \tt{(x - 2)(x + 5) = 0}} \\ { \tt{x = 2 \:  \: and \:  \:  - 5}}

3 0
2 years ago
Read 2 more answers
What is a separable differential equation? How do you solve it?
Alexus [3.1K]
A <span>separable differential equation</span> is a first-order differential equation in which the expression for dy/dx can be factored as a function of x times a function of y,
that is, dy/dx = g(x) f(y). We can solve this equation by integrating both sides of the equation dy/f(y) = g(x)dx.
4 0
2 years ago
Mathhhh helppppppppppppppppppp
Salsk061 [2.6K]
4. C)If two figures are congruent, then they are similar.
If they are congruent them shape and size are the same and hence they are similar

5. Ratio 4/3 smaller side is 21
Multiply to find large side
4/3×21= 28ft D)

6. Width went from 24 to 3 in divide to get ratio
24/3 =8 now divide the length by 8 to find the postcard length
32/8= 4 in A)

8. If they are similar you need to find the ratio y reduces from 8 is similar to 6 so link those 6/8
This is your ratio you can simplify it to 3/4 now y/6 should also = 3/4
Y/6=3/4
Y=18/4= 4.5 C)

9.C)DC

8 0
3 years ago
Read 2 more answers
The height of a can is 3 times its radius. If the radius of the can is 3 centimeters, what is the volume?
Semmy [17]

Answer:

<em>170 </em>cent.^{3}<em />

Step-by-step explanation:

If the height is 3 times the radius you can find that by: 3r

r = 3.

So: 3 x 3 = 9

The height is 9 centimeters

Volume of a cylinder (can):

V= 2\pi rh

Plug in what we know

V = 2 \pi (3) (9)\\V = 54\pi \\V = 169.646\\

Rounds to: 170

7 0
2 years ago
Other questions:
  • 1/1×3 + 1/3×5 + ... + 1/47×49 HELP PLZ
    8·1 answer
  • Do you think a mix number is a rational number explain
    11·1 answer
  • There are men and women at a meeting.
    10·2 answers
  • What is the sign of -4 divided by -8
    14·1 answer
  • How do you add 5 3/7 + 6 7/20 equal
    10·1 answer
  • Bill spent $42 on fruit at the grocery store. He spent a total of $60 at the store. What percentage of the total did he
    13·2 answers
  • Solve the system using the substitution method.
    14·1 answer
  • Can you slove any one question ​
    15·2 answers
  • Prompt
    10·2 answers
  • Karl drove 603.5 miles. for each gallon of gas, the car 41 miles. what is a resonable amount to use
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!