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
NARA [144]
3 years ago
13

The five patterns are: circle, plus sign, wavy lines, empty box, and star. One hundred trials were conducted, and your very impr

essive friend guessed right on 41 of those trials. What proportion of the cards would I expect my friend to guess correctly?
Mathematics
1 answer:
avanturin [10]3 years ago
3 0

Answer:

The proportion is \frac{41}{100} = 0.41 or 41%

Step-by-step explanation:

Hello!

The expected proportion is calculated as "the number the event of interest has occurred"(i.e. success) divided the total of trials.

In this case, your success is the number of times your friend guessed a card correctly in 100 trials.

The proportion is \frac{41}{100} = 0.41 or 41%

I hope it helps!

You might be interested in
Mark the statements that are true.
lara [203]

Answer:

Correct answers:

A. An angle that measures \frac{\pi}{6}  radians also measures  30^o

C. An angle that measures 180^o  also measures \pi  radians

Step-by-step explanation:

Recall the formula to transform radians to degrees and vice-versa:

\angle\,radians=\frac{\pi}{180^o} \,* \,\angle degrees\\  \\\angle\,degrees=\frac{180^o}{\pi} \,* \,\angle radians

Therefore we can investigate each of the statements, and find that when we have a \frac{\pi}{6}  radians angle, then its degree formula becomes:

\angle\,degrees=\frac{180^o}{\pi} \,* \,\angle radians\\\angle\,degrees=\frac{180^o}{\pi} \,* \,\frac{\pi}{6} \\\angle\,degrees=\frac{180^o}{6} \\\angle\,degrees=30^o

also when an angle measures 180^o  , its radian measure is:

\angle\,radians=\frac{\pi}{180^o} \,* \,\angle degrees\\\angle\,radians=\frac{\pi}{180^o} \,* \,180^o\\\angle\,radians=\pi

The other relationships are not true as per the conversion formulas

7 0
3 years ago
What function transforms the graph of the parent function f(x)=2^x by reflecting it across the y axis and translating it up 5 un
babunello [35]

Coefficient of x is less than 0 then it's across the y axis

So f(x)=2^x ---> g(x) = 2^-x

Then translating it up 5 units, should be  g(x) = 2^(-x)  + 5


Answer is the last one

g(x) = 2^(-x) + 5

6 0
3 years ago
Read 2 more answers
given a polynomial and one of its factors, find the remaining factors of the polynomial. some factors may not be binomials. use
Alenkinab [10]
This is easy to do because you can factor
example
6/2=3 because 6=2*3 so 6/2=3/1 times 2/2 or 3

2x^3+17x^2+23x-42 can be factored out to equal
(x-1)(x+6)(2x+7)

so [(x-1)(x+6)(2x+7)]/(2x+7)=[(x-1)(x+6)] times (2x+7)/(2x+7)=(x-1)(x+6)=x^2+5x-6

the answer is (x-1)(x+6) or x^2+5x-6
3 0
3 years ago
Read 2 more answers
What is x in 0x<3 i though you couldn't divide anything with 0
Anna11 [10]

Step-by-step explanation:

0x<3

x>3/0

x>∞

x is undefined.

3 0
3 years ago
I need help :( the question is hard can you explain and show your work ty
Anika [276]
20%
step by step explanation
3 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solution to this equation? 4x+10+3x=40-3x
    7·1 answer
  • The formula f=5280m can be used to convert a measurement of f feet to an equivalent measurement m miles. If an airplane flies at
    7·1 answer
  • Solve using synthetic division.<br><br> (−2x^3 + 5x^2 − x + 2) ÷ (x + 2)
    10·1 answer
  • Why do you think you need to add zero pairs to get the -1- tiles to fit in the rectangle?
    8·1 answer
  • 30-4×2+5=27 <br><br>insert parentheses to make the statement true
    13·2 answers
  • Identify the usual level of measurement for each of the following A. year in school B. IQ scores C. life expectancy D. fatigue E
    6·1 answer
  • I need help plz <br> State the coordinates of the point.
    5·1 answer
  • The interest on a note of $32,000 at 9% for three months is
    11·1 answer
  • Identify the slope and y-intercept of the graph of the equation.
    12·2 answers
  • Brent checks the sales records for a random sample of 16 days and finds the mean number of gallons sold is 150 gallons per day;
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!