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
g100num [7]
3 years ago
6

PLS HELP!! A student randomly guesses the answers to two true-false questions. Describe and correct the error in finding the pro

bability of the student guessing both answers correctly. The student can either guess two incorrect answers, two correct answers, or one of each. So the probability of guessing both answers correctly is 1/3
Mathematics
1 answer:
Nitella [24]3 years ago
6 0

Answer:

The student was wrong. The probability is actually 1/4.

Step-by-step explanation:

Let's say you have question A and question B. You could have incorrect on A, and incorrect on B. Or, you could have incorrect on A, but a correct on B. Or, you could have an incorrect on B, but a correct on A. Or, both could be correct. <em><u>Since there are 4 different possibilities, the actual probability is 1/4.</u></em>

You might be interested in
Is -8.3 a rational number? if so can you provide it in a/b form
zalisa [80]

Answer:

yes-8.3=\frac{-83}{10}\\is ~of ~the ~form ~\frac{a}{b}  ~where ~a=-83, ~b=10

Step-by-step explanation:

6 0
2 years ago
The equation of a rational function does not have to contain a rational expression
jok3333 [9.3K]
Your answer is false
7 0
3 years ago
Read 2 more answers
Help me with this. will mark as brainliest
Pani-rosa [81]

Half of R is shown as 20 degrees, so the other half of r is also 20 degrees.

A tangent line forms a right angle, so the tangent at P is 90 degrees.

X would be 180 - 90 - 20 = 70 degrees.

X = 70 degrees.

8 0
3 years ago
A bus is going to a museum 135 miles away. The bus will travel at 30 miles per hour. How long will it take the bus to get
TEA [102]

Answer:

4.5 hours

Step-by-step explanation:

distance equals rate times time, a relationship that can be solved for time:

time = distance / rate

Here the time is (135 miles) / (30 mph) = 4.5 hours

The bus requires 4.5 hours to get to the museum.

7 0
2 years ago
Use the equation 2,401 = 76 – 2x. What power of 7 is 2,401?
zaharov [31]
Comment
I'm going to take a guess at this and say what you meant is  2401 = 7^(6 - 2x)

Step One
Find out the power of 7 that will equal 2401. 
You could do it like this.
7^y = 2401 and just guess at some values.

y      7^y
1      7
2      49
3      7 * 7 * 7 = 343
4      7 * 7 * 7 * 7 = 2401  So the answer is 4

7^4 = 2401

Step 2 
Equate the powers.
2401 = 7^(6 - 2x)
7^4 = 7^ (6 - 2x)
4 = 6 - 2x  Subtract 6 from both sides.
4 - 6 = - 2x 
-2 = - 2x divide by - 2
-2/-2 = x
x = 1 <<<<<<<<<<<<<answer

7 0
4 years ago
Read 2 more answers
Other questions:
  • Payment history is ____ of your credit score.
    6·2 answers
  • How many times greater is 1 mile than 1 foot? Please help me.
    11·1 answer
  • you are playing catch with a friend and you are standing 90 feet from him. how many yards away are you standing?
    9·2 answers
  • How do you label vertices on an image figure?
    8·1 answer
  • Find the solutions of the system y = –2x – 1 and y = 3–x–1. What are the x-coordinates of the solutions? Choose all that apply
    9·1 answer
  • A contaminant is leaking into a lake at a rate of R(t) = 1700e^0.06t gal/h. Enzymes that neutralize the contaminant have been ad
    9·1 answer
  • a radio transmission is 515 feet tall. a guy wire is to be attached (6)feet from the top and is to make an angle of 22 degree wi
    11·1 answer
  • What is (p^2-6p-5)(3p^2-7p-4) in standard form
    6·1 answer
  • Pls help! marking brainliest!!
    8·1 answer
  • Giving brainliest to whoever answers this.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!