All categories

3 years ago

CAN SOMEONE HELP ME PLS!! im confused

Mathematics

1 answer:

neonofarm [45]3 years ago

4 0

Answer:

the angle in upper and the lower corners have to be the same, so we can write an equation

5p-62 = 6p-88

(this picture is indeed complicated to read)

rearrange the equation

-62 = 1p-88

26 = p

hope this helped you

You might be interested in

Help with this promblem please! :D

kondaur [170]

2/4 is equal to 3/6 because they both are equal to 1/2

6 0

3 years ago

Read 2 more answers

The University of Washington claims that it graduates 85% of its basketball players. An NCAA investigation about the graduation

Nonamiya [84]

Probabilities are used to determine the chances of events

The given parameters are:

Sample size: n = 20
Proportion: p = 85%

<h3>(a) What is the probability that 11 out of the 20 would graduate? </h3>

Using the binomial probability formula, we have:

$P(X = x) = ^nC_x p^x(1 - p)^{n -x}$

So, the equation becomes

$P(x = 11) = ^{20}C_{11} \times (85\%)^{11} \times (1 - 85\%)^{20 -11}$

This gives

$P(x = 11) = 167960 \times (0.85)^{11} \times 0.15^{9}$

$P(x = 11) = 0.0011$

Express as percentage

$P(x = 11) = 0.11\%$

Hence, the probability that 11 out of the 20 would graduate is 0.11%

<h3>(b) To what extent do you think the university’s claim is true?</h3>

The probability 0.11% is less than 50%.

Hence, the extent that the university’s claim is true is very low

<h3>(c) What is the probability that all 20 would graduate? </h3>

Using the binomial probability formula, we have:

$P(X = x) = ^nC_x p^x(1 - p)^{n -x}$

So, the equation becomes

$P(x = 20) = ^{20}C_{20} \times (85\%)^{20} \times (1 - 85\%)^{20 -20}$

This gives

$P(x = 20) = 1 \times (0.85)^{20} \times (0.15\%)^0$

$P(x = 20) = 0.0388$

Express as percentage

$P(x = 20) = 3.88\%$

Hence, the probability that all 20 would graduate is 3.88%

<h3>(d) The mean and the standard deviation</h3>

The mean is calculated as:

$\mu = np$

So, we have:

$\mu = 20 \times 85\%$

$\mu = 17$

The standard deviation is calculated as:

$\sigma = np(1 - p)$

So, we have:

$\sigma = 20 \times 85\% \times (1 - 85\%)$

$\sigma = 20 \times 0.85 \times 0.15$

$\sigma = 2.55$

Hence, the mean and the standard deviation are 17 and 2.55, respectively.

Read more about probabilities at:

brainly.com/question/15246027

8 0

3 years ago

How do u write (2b)^4 without exponents

bearhunter [10]

Since you don't know the value of b about the best that you could do is:

(2b)^4

16b^4

16b*b*b*b

4 0

3 years ago

Read 2 more answers

The school store sells pencils for $0.30 each, hats for $14.50 each, and binders for $3.20 each.

astraxan [27]

Answer: the answer is $29.9

Step-by-step explanation:

No, she wrong it will be less than $20

4 0

3 years ago

Read 2 more answers

What is the sqaure root of 2309!!!??

Serggg [28]

Answer:

the answer is approximately 48.05.

Step-by-step explanation: You can either use a calculator or estimate knowing that 50 is the square root of 2500, which is slightly above 2309. You can also use differentials and calculus to find an approximation.

3 0

3 years ago

Read 2 more answers