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
Vika [28.1K]
3 years ago
12

A quick quiz consists of a multiple-choice question with 5 possible answers followed by a multiple-choice question with 5 possib

le answers. If both questions are answered with random guesses, find the probability that both responses are correct.
Mathematics
1 answer:
Julli [10]3 years ago
4 0

Answer:

1/25

Step-by-step explanation:

P of both answers are correct =

P first question is answered correct and P second question is answered correct

in probability,  and = multiplication

P first question is answered correct =1 correct answer/5 possible answers =1/5

P second question is answered correct = 1/5

P of both answers are correct = (1/5) · (1/5) = 1/25

You might be interested in
What is two plus two
Olenka [21]

Answer:

2+2=4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Triangle ABC has AB=5, BC=7, and AC=9. D is on AC with BD=5. Find the length of DC
e-lub [12.9K]

Answer:

DC=\frac{8}{3}\ units

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The triangle ABD is an isosceles triangle

because

AB=BD

The segment BM is a perpendicular bisector segment AD

so

<em>In the right triangle ABM</em>

Applying the Pythagorean Theorem

BM^2=AB^2-AM^2

we have

AB=5\ units\\AM=x\ units

substitute

BM^2=5^2-x^2

BM^2=25-x^2 -----> equation A

<em>In the right triangle BMC</em>

Applying the Pythagorean Theorem

BM^2=BC^2-MC^2

we have

BC=7\ units\\MC=AC-AM=(9-x)\ units

substitute

BM^2=7^2-(9-x)^2

BM^2=49-(81-18x+x^2)  

BM^2=49-81+18x-x^2

BM^2=-x^2+18x-32 ----> equation B

equate equation A and equation B

-x^2+18x-32=25-x^2

solve for x

18x=25+32\\18x=57\\\\x=\frac{57}{18}

Simplify

x=\frac{19}{6}

<em>Find the length of DC</em>

DC=AC-2x

substitute the given values

DC=9-2(\frac{19}{6})

DC=9-\frac{19}{3}\\\\DC=\frac{8}{3}\ units

8 0
3 years ago
15. COLLEGE COSTS The table shows some college costs. How much more is tuition than
ivanzaharov [21]

Answer: but 8x-4

Step-by-step explanation:

3 0
3 years ago
Y = -3x-2 Slope intercept form
lana66690 [7]

Answer:The equation of any straight line, called a linear equation, can be written as: y = mx + b, where m is the slope of the line and b is the y-intercept. The y-intercept of this line is the value of y at the point where the line crosses the y axis.

Step-by-step explanation:

4 0
3 years ago
X+x+x+2 which are equivalent
kodGreya [7K]

3x+2 is the simplest equivalent answer

7 0
3 years ago
Other questions:
  • A sequence starts 1,5,9,13,17<br> What’s the formula for the nth term of this sequence??
    14·2 answers
  • A gum ball machine contains 23 green gum balls, 52 red gum balls, 61 yellow gum balls and 30 pink gum balls what percent of the
    5·1 answer
  • Polygon ABCDEF is the result of a translation of polygon GHIJKL . GH¯¯¯¯¯¯ is parallel to LK¯¯¯¯¯ in the pre-image.
    11·2 answers
  • Simplify the expression 2(2+4v)
    13·2 answers
  • Which equation shows the function <img src="https://tex.z-dn.net/?f=y%3D2%5E%7Bx%7D" id="TexFormula1" title="y=2^{x}" alt="y=2^{
    6·1 answer
  • What is the length of ST¯¯¯¯¯? Enter your answer as a decimal in the box. Round your final answer to the nearest hundredth. in.
    5·2 answers
  • Jasper got a 100% on his first test and an 85% on his second, but he'd rather not talk about how he did on the third. If Jasper'
    8·1 answer
  • Answer plsss........ ​
    7·1 answer
  • Find the irrational number. Links or spam will result in reporting.
    12·1 answer
  • Determine the equivalent decimal of the following?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!