All categories

3 years ago

What is the value of a+1/a? when 5+5/a=10

Mathematics

1 answer:

GenaCL600 [577]3 years ago

6 0

Answer:

I think 20 but i may of done my math wrong

Step-by-step explanation:

You might be interested in

Evaluate P(6, 6).<br> 720<br> 01<br> 6

Vinvika [58]

The correct answer is 720 I did this problem long time ago hope this helps :)

6 0

4 years ago

Assume that when adults with smartphones are randomly selected, 54% use them in meetings or classes (based on data from an lg sm

GuDViN [60]

Answer: 0.951%

Explanation:

Note that in the problem, the scenario is either the adult is using or not using smartphones. So, we have a yes or no scenario involved with the random variable, which is the number of adults using smartphones. Thus, the number of adults using smartphones follows the binomial distribution.

Let x be the number of adults using smartphones and n be the number of randomly selected adults. In Binomial distribution, the probability that there are k adults using smartphones is given by

$P(x = k) = \frac{n!}{k!(n-k)!}p^k (1-p)^{n-k}$

Where p = probability that an adult is using smartphones = 54% (since 54% of adults are using smartphones).

Since n = 12 and k = 3, the probability that fewer than 3 are using smartphones is given by

$P(x \ \textless \ 3) = P(x = 0) + P(x = 1) + P(x = 2)
\\ \indent = \frac{12!}{0!(12-0)!}(0.54)^0 (1-0.54)^{12-0} + \frac{12!}{1!(12-1)!}(0.54)^1 (1-0.54)^{12-1} + \\ \indent \frac{12!}{2!(12-2)!}(0.54)^2 (1-0.54)^{12-2}
\\
\\ \indent = \frac{12!}{(1)(12!)}(0.46)^{12} + \frac{12(11!)}{(1)(11!)}(0.54)(0.46)^{11}+ \frac{12(11)(10!)}{(2)(10!)}(0.54)^2(0.46)^{10}
\\
\\ \indent = (1)(0.46)^{12} + (12)(0.54)(0.46)^{11}+ (66)(0.54)^2(0.46)^{10}
\\ \indent \boxed{P(x \ \textless \ 3) \approx 0.00951836732 }
$

Therefore, the probability that there are fewer than 3 adults are using smartphone is 0.00951 or 0.951%.

5 0

4 years ago

Determine whether the given value is a solution of the equation. 36 = k 6 ; k = 6 6 a solution of 36 = k 6 .

Mila [183]

Answer:

Yes: the variable K would equal "6"

Step-by-step explanation:

After you set you equation up, you have to isolate the given variable. To do that you have to do the recipriocal (6k-multiplying) which would be division. You would divide k = 36 ÷ 6 . that isolates the variable ,which you would then solve. k = 6 .

4 0

3 years ago

HURRY !!!!!!!!!! Which choices correctly describe reflections in the diagram? Check all that apply. On a coordinate plane, trian

defon

Answer:

The correct choices are B, C, and D

Step-by-step explanation:

I took the test on Edge 2020

3 0

3 years ago

Read 2 more answers

The spinner shown is spun once. Find the probability of each event. Write each answer as a fraction, percent, and decimal. Ma

poizon [28]

Complete question :

The spinner shown is spun once. Determine the probability of each event. Express each answer as a fraction, a decimal, and a percent. P(C)

Answer:

1 / 8; 0.125 ; 12.5%

Step-by-step explanation:

From the spinner :

The number of partitions or faces on the spinner is 8 ;

The number of occurences of c on the spinner is 1

The probability of obtaining c written as P(c) :

Probability = required outcome = number of c on spinner / total possible outcomes, total number of faces in spinner = 8

P(c) = 1 / 8

As decimal :

1/8 = 0.125

As a percentage :

0.125 * 100% = 12.5%

7 0

3 years ago