All categories

3 years ago

(5√2 - 1)^2 Steps please

Mathematics

1 answer:

faltersainse [42]3 years ago

6 0

Answer:

51 - 10 $\sqrt{2}$

Step-by-step explanation:

( 5 $\sqrt{2}$ - 1)² = (5 $\sqrt{2}$ - 1)(5 $\sqrt{2}$ - 1)

Each term in the second factor is multiplied by each term in the first factor, that is

5 $\sqrt{2}$ (5 $\sqrt{2}$ - 1 ) - 1(5 $\sqrt{2}$ - 1 )

Distribute both parenthesis, noting that $\sqrt{2}$ × $\sqrt{2}$ = 2

= 50 - 5 $\sqrt{2}$ - 5 $\sqrt{2}$ + 1 ← collect like terms

= 51 - 10 $\sqrt{2}$

You might be interested in

A blueprint shows an apartment with an area of 15 square inches. If the blueprint's scale is 1 inch : 8 feet, what will the actu

Free_Kalibri [48]

I got 480 square feet. I assume that the apartment was a rectangle so the sides were 3in by 5in. Then I converted inches to feet and then found the area again

3 0

3 years ago

Bus one had half of the grade eight students and 6 grade, seven students, bus two had 15 grade seven students and one-third of g

Rzqust [24]

I'm not sure about that one

7 0

4 years ago

I need help on this i don't understand this. plz help with steps plz. thanks!!

Vlad1618 [11]

I know the answer but do i have to show you their phone numbers and send it out on the bay on open mic or no no

3 0

3 years ago

Which statement correctly compares the shapes of the distribution?

aniked [119]

the answer to your question is c

4 0

3 years ago

Employment data at a large company reveal that 75% of the workers are married, 42% are college graduates, and half of the col

galina1969 [7]

Answer:

a. P=0.04

b. P=0.54

c. P=0.96

Step-by-step explanation:

If half of the college graduates are married, then we have:

- 21% are college graduates and married.

- 21% are college graduates and not married.

If 75% of the workers are married, and 21% of the workers are college graduates and married, then (75%-21%)=54% of the workers are not college graduates that are married.

If 25% of the workers are married, and 21% of the workers are college graduates and not married, then (25%-21%)=4% of the workers are not college graduates that are not married.

a) P=0.04 (explanation above)

b) P=0.54

c) In this case, the probability is the complement of point "a". Then we can calculate it by substracting the probability of not being married and not being a college graduate.

P=1-0.04=0.96

8 0

3 years ago