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
igor_vitrenko [27]
3 years ago
7

On a 9 question multiple-choice test, where each question has 5 answers, what would be the probability of getting at least one q

uestion wrong?
Mathematics
1 answer:
stepan [7]3 years ago
4 0

Answer:

P(at least one wrong) = 1- P(all correct) =1-.25^6=1-1/4096=4095/4096. This assumes that the answers are picked at random. This kind of question is always the complement of an extreme binomial outcome.

You might be interested in
Fiandnd product 3/4 x 1 ,1/2
VMariaS [17]
3/4 times 1 1/2 = 1 1/8

Hope this helps!
7 0
3 years ago
Lynn is trying to determine how far away Student B is from the balloon. He decides to use the
kaheart [24]

Answer:

See Explanation

Step-by-step explanation:

<em>The question is incomplete as the image that illustrates the scenario is not given.</em>

<em>However, I can deduce that the question is about a right-angled triangle.</em>

<em>So, I will give a general explanation on how to find each of the side of the triangle, given a side and an angle.</em>

<em />

<u>For triangle A (solve for b)</u>

Using cosine formula.

\cos \theta = \frac{Adjacent}{Hypotenuse}

\cos 60= \frac{5}{b}

Make b the subject

b= \frac{5}{\cos 60}

<u>For triangle B (solve for b)</u>

Using cosine formula.

\sin \theta = \frac{Opposite}{Hypotenuse}

\sin 60= \frac{b}{5}

Make b the subject

b = 5\sin 60

<u>For triangle C (solve for b)</u>

Using cosine formula.

\tan \theta = \frac{Opposite}{Adjacent}

\tan 60= \frac{b}{5}

Make b the subject

b = 5\tan 60

3 0
2 years ago
Read 2 more answers
Simplify:<br> 2x²(4x³-3x²+6x)
Alinara [238K]

Answer:

244x²

Step-by-step explanation:

4x(64x - 9x + 6x)

256x² - 36x² + 24x²

280x² - 36x²

244x²

8 0
2 years ago
Read 2 more answers
Robert plans to make a box-and-whisker plot of the following set of data.
Lunna [17]

Answer:

lower quartile: 18; median: 27; upper quartile: 38

Step-by-step explanation:

The given set of data is

27, 14, 46, 38, 32, 18, 21

Arrange this set of data in numeric order

14,18,21,27,32,38,46

The given set of data has 7 numbers which is odd.

Median in the middle value. The middle value of the data is fourth value which is 27.

Hence, median = 27

Now, the first half of the set of data is

14,18,21

Middle value = 18

Hence, lower quartile = 18

The second half is 32,38,46

Middle value = 38

Hence, uper quartile = 38

Thus, the correct option is

lower quartile: 18; median: 27; upper quartile: 38



4 0
3 years ago
Read 2 more answers
Help me, Illustrative Mathematics
Lerok [7]

Answer:

1. 38kg=84lbs.

2. 6 oz.=170 g.

3.  180 gallons= 680 L

4.  29 cubic meters=1024 cubic feet

Step-by-step explanation:

<h3>Lin has a pet German Shepherd that weighs 38 when measured in one unit and 84 when measured in a different unit. Which measurement is in pounds, and which is in kilograms?</h3>

1 kg≈2.20462262lbs.

2.20462262x38≈83.7756596(pounds)

<h3>Elena has a pet parakeet that weighs 6 when measured in one unit and 170 when measured in a different unit. Which measurement is in ounces, and which is in grams?</h3>

1 oz.≈28.3495231 g.

28.3495231x6=170.097139(grams)

<h3>Behind Lin’s house, there is a kiddie pool that holds 180 or 680 units of water, depending on which unit you are using to measure. Which measurement is in gallons, and which is in liters?</h3>

1 gallon≈3.78541178 liters

3.78541178x180≈681.37412(liters)

<h3>Behind Elena’s house there is a portable storage container that holds 29 or 1024 units, depending on which unit you are using to measure. Which measurement is in cubic feet, and which is in cubic meters?</h3>

1 cubic meter≈35.3146667 cubic feet

35.3146667x29≈1024.12533 cubic feet

Hope I helped :)

7 0
2 years ago
Other questions:
  • Which system of linear inequalities is represented by the graph?
    13·2 answers
  • 15 out of the 20 students at the lunch table had a sandwich. What percent of the table do those 15 students represent? Put this
    11·1 answer
  • Sixty students eat twenty four pizzas.To find how many pizzas are needed to feed fifteen students, Set up the problem but don't
    11·1 answer
  • Let X be a normal random variable with a mean of 1.54 and a standard deviation of 2.40.
    8·1 answer
  • Need help! Law of cosines...find b round to the nearest tenth please
    8·2 answers
  • Rewrite the expression in the form a^n
    11·1 answer
  • What is the measure of XYZ?
    9·2 answers
  • When a number is decreased by 27%, the result is 11.
    8·2 answers
  • If x + y = 2 and x - y = 6, solve for x and y.
    7·1 answer
  • What is 119.30 rounded to the nearest hundredth
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!