All categories

2 years ago

What is -2 sqrt 50 - sqrt 125 in simplest radical form

Mathematics

2 answers:

Gnoma [55]2 years ago

6 0

Answer:

- 10√2 - 5√5

Step-by-step explanation:

- 2√50

√50 = √( 2 x 5 x 5 ) = 5√2

- 2√50

= - 2 x 5√2

= - 10√2

- √125

= - √( 5 x 5 x 5 )

= - 5√5

- 2√50 - √125

= - 10√2 - 5√5

Ronch [10]2 years ago

6 0

Answer:

Step-by-step explanation:

50: 2 * 5 * 5

125:5 * 5 * 5

sqrt(50) = 5*sqrt(2) For every pair of primes, 1 of them is put outside the sqrt sign and one is discarded.

sqrt(125) = 5*sqrt(5) Same rule.

-2 sqrt(50) - sqrt(125)

-2*5*sqrt(2) - 5sqrt(5)

Answer: -10*sqrt(2) - 5sqrt(5)

You could write the answer as

Answer: -5(2sqrt(2) + sqrt(5) )

Comment: I don't know which answer you should use. I think the second one is more complete, but your marker may not agree.

You might be interested in

- 1/2 (- 3/2x + 6x + 1) - 3x

zepelin [54]

Answer: = -2/4x + -1/2

Step-by-step explanation:

hope this helped

5 0

3 years ago

What is the standard deviation of the following data? If necessary, round your answer to two decimal places.

blsea [12.9K]

Total numbers=10
mean(average)=14.8
standard deviation=3.4254
variance_standard deviation)=11.73333
population standard deviation=3.24962
variance(population standard deviation)=10.56

3 0

3 years ago

Sin^2x/cos^2 + sinxcscx = sec^2x Identify it, please explain so I know how you did it, thanks

max2010maxim [7]

$\frac{sin^2x}{cos^2x} + sin x *cscx\\ tan^2x + \frac{sin x}{sin x} \\ tan^2x + 1\\ sec^2x$

$\frac{sin^2x}{cos^2x} = tan^2x$

$csc x = \frac{1}{sinx}$

$tan^2x + 1 = sec^2x$

6 0

3 years ago

algol [13]

Answer:jio

Step-by-step explanation:

6 0

2 years ago

A presidential candidate plans to begin her campaign by visiting the capitals in 44 of 5050 states. what is the probability that

defon

Part A:

Given that A presidential candidate plans to begin her campaign by visiting the capitals in 4 of 50 states.

The number of ways of selecting the route of 4 specific capitals is given by

$^{50}P_4= \frac{50!}{(50-4)!} = \frac{50!}{46!} =50\times49\times48\times47=5,527,200$

Therefore, the probability that she selects the route of four specific capitals is $\frac{1}{5,527,200}$

Part B:

The number of ways of selecting the route of 4 specific capitals is 5,527,200.

Since the number of ways of selecting the route of 4 specific capitals is too large it is not practical to list all of the different possible routes in order to select the one that is best.

Therefore, "No, it is not practical to list all of the different possible routes because the number of possible permutations is very large."

3 0

3 years ago