All categories

2 years ago

F(1)=−3 f(n)=2⋅f(n−1)+1 f(2)=

Mathematics

2 answers:

Fed [463]2 years ago

6 0

I think the answer is -5

RoseWind [281]2 years ago

3 0

Answer:

-5

Step-by-step explanation:

f(2) = 2 * f(2-1) + 1

f(2) = 2 * f(1) + 1

f(2) = 2(-3) + 1

f(2) = (-6) + 1

f(2) = -5

You might be interested in

Find the measure of angle 3

xxMikexx [17]

The answer is 60 degrees

If the picture was: http://tinypic.com/view.php?pic=1zq6o75&s=7#.W1FNsNVKiM8

I hope this helps!

Plz mark brainliest!

4 0

2 years ago

When Victoria goes bowling, her scores are normally distributed with a mean of 130

Artemon [7]

Answer:

0.2377 or about a 23.77% chance

Step-by-step explanation:

P(123<X<130) = normalcdf(123,130,130,11) = 0.2377303466 ≈ 0.2377

Therefore, the probability that the next game Victoria bowls, her score will be between 123 and 130 is 0.2377 or about a 23.77% chance

5 0

3 years ago

A literature professor decides to give a 10-questiontrue-false quiz to determine who has read an as-signed novel. She wants to c

Darya [45]

Answer:

The teacher should set the score 7 as the lowest passing grade.

Step-by-step explanation:

Let X = number of correct guesses.

All the questions are of true-false format.

The probability of getting a correct answer is, p = 0.50.

The total number of questions is, n = 10.

The random variable X follows a Binomial distribution with parameters n = 10 and p = 0.50.

The probability mass function of X is:

$P(X=x)={10\chose x}0.50^{x}(1-0.50)^{10-x};\ x=0,1,2,3...$

Now the teaches chose the grading scheme such that the probability of passing a student who guesses on every question is less than 0.05.

Then the probability of failing such a students is at least 1 - 0.05 = 0.95.

Compute the probability distribution of X.

Consider the probability distribution attached below.

The value of x for which P (X ≤ x) is at least 0.95 is, x = 7.

So the teacher should set the score 7 as the lowest passing grade.

7 0

2 years ago

Translate this phrase into an algebraic expression.

wariber [46]

Answer:

17+2g

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Use Euler's formula to write 3+3i^3 in exponential form.

Alex_Xolod [135]

21−=2(2−)=2cos(−1)+2 sin(−1)

−1+2=−1(2)=−1(cos2+sin2)=cos2+ sin2

Is the above the correct way to write 21− and −1+2 in the form +? I wasn't sure if I could change Euler's formula to =cos()+sin(), where is a constant.

complex-numbers

Cite

edited Mar 6 '17 at 4:38

Richard Ambler

1,52199 silver badges1616 bronze badges

asked Mar 6 '17 at 3:34

14wml

23122 silver badges99 bronze badges

Add a comment

1 Answer

No. It is not true that =cos()+sin(). Notice that

1=1≠cos()+sin(),

for example consider this at =0.

As a hint for figuring this out, notice that

+=ln(+)

then recall your rules for logarithms to get this to the form (+)ln().

8 0

3 years ago

F(1)=−3 f(n)=2⋅f(n−1)+1 ​f(2)=

F(1)=−3 f(n)=2⋅f(n−1)+1 f(2)=