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Vanyuwa [196]
2 years ago
12

PLS HELP WILL MARK AS BRAINLIST

Mathematics
2 answers:
kykrilka [37]2 years ago
5 0

Answer:

Step-by-step explanation:

x = -6 ± 3√2

x = -6 + 3√2

x = -6 - 3√2

babunello [35]2 years ago
5 0

Step-by-step explanation:

\sf  x=-6  \:  \pm 3\sqrt{2}

\sf \: x=-6 \: +  3 \sqrt{2}

\sf \: x=-6 \: - 3 \sqrt{2}

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Solve for x: 2/3=8/x+6
Tresset [83]

Answer:

x = 6

Step-by-step explanation:

2/3=8/x+6

Using cross products

2 * (x+6) = 3*8

2(x+6) = 24

Divide by 2

x+6 =12

Subtract 6

x = 6

8 0
2 years ago
Read 2 more answers
Eight people attend the theater "together and sit in a row with exactly eight seats. Suppose the eight people consist of three m
Nata [24]

Answer:

They can be seated in 120 differents ways.

Step-by-step explanation:

Taking into account that there are 3 couples and every couple has an specific way to sit, for simplify the exercise, every couple is going to act like 1 option and it's going to occupy 1 Place. If this happens we just need to organize 5 options (3 couples and 2 singles) in 5 Places (3 for a couple and 2 for the singles)

It means that now there are just 5 Places in the row and 5 options to organized. So the number of ways can be calculated using a rule of multiplication as:

<u>      5         </u>*<u>        4          </u>* <u>       3           </u> *  <u>        2     </u>  * <u>         1         </u> = 120

 1st place    2nd Place    3rd place        4th Place    5th Place

Because we have 5 options for the 1st Place, the three couples and the 2 singles. Then, 4 options for the second Place, 3 options for the third place, 2 for the fourth place and 1 option for the 5th place.

Finally, they can be seated in 120 differents ways.

8 0
2 years ago
Lcm of 63, 80 and 102
photoshop1234 [79]

Answer:

85,680

Step-by-step explanation:

3 0
1 year ago
Reserve Problems Chapter 4 Section 5 Problem 2 A laptop company claims up to 10.1 hours of wireless web usage for its newest lap
Viktor [21]

Answer:

0.1151

Step-by-step explanation:

Given that a laptop company claims up to 10.1 hours of wireless web usage for its newest laptop battery life. However, reviews on this laptop shows many complaints about low battery life. A survey on battery life reported by customers shows that it follows a normal distribution with mean 9.5 hours and standard deviation 30 minutes.

If X is the battery life then X is N(9.5, 0.5)

(we convert into one unit for calculations purpose here hours)

a) the probability that the battery life is at least 10.1 hours

=P(X\geq 10.1)\\=P(Z\geq \frac{10.1-9.5}{0.5} )\\= P(Z\geq 1.2)\\=0.1151

we get the probability that the battery life is at least 10.1 hours is 0.1151

4 0
3 years ago
Avery gets newsletters by e-mail. He gets one for sports every 5 days, one for model railroads every 10 days, and one for music
vredina [299]

Answer: its  40 days

good luck

3 0
3 years ago
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