How many different arrays are possible for 7

Answers

Answer 1

Answer:
Only two:

-- 1 wide and 7 long

-- 7 wide and 1 long .

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With which values of the argument the function acquires a value equal to144
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Arrange the numbers in increasing order 8.08,8.081,8.09,8.008

Answers

8.08,8.09,8.0008,8.081

8.08, 8.09, 8.008, 8.081

How to solve 5^(2x-3)=125

Answers

Answer:

x = 3

Step-by-step explanation:

Solve for x over the integers:

5^(2 x - 3) = 125

Multiply both sides by 125:

5^(2 x) = 15625

15625 = 5^6:

5^(2 x) = 5^6

Equate exponents of 5 on both sides:

2 x = 6

All equations give x = 3 as the solution:

Answer: x = 3

Answer:

x=14 or 14x

Step-by-step explanation:

5*2=10

5*3=15

10x-15=125

+15=+15

10x=140

/10=/10

x=14

A cylindrical water tank is being filled with a hose. The depth of the water increases by 114 feet per hour.How many hours will it take for the water level in the tank to be 312 feet deep?

Enter your answer as a mixed number in simplest form in the box.

hours

Answers

Time taken = depth / rate
Time taken = 312 / 114
Time taken = 2 14/19

A bag contains 3 red marbles,5 yellow marbles,and 4 blue marbles. One marble is chosen at random. What is the probability that the chosen marble will be blue? A.1/12 B.1/4 C.1/3 D.3/4

Answers

There are 12 marbles in total (3 red + 5 yellow + 4 blue)

4/12 is blue
This can be simplified to 1/4

The answer is B) 1/4

Please give me brainliest answer if I helped

3/4 is the correct answer

$64 jacket; 20% discount

Answers

20 will goes into 100, 5 times so the discount will be 1/5 off. 64 divided by 5 is 12.8 and than 64 minus 12.8 is 51.2, so the discount price is $51.20.

I hoped I help :P

There are 7 people at a party. If each person shakes the hand of everyone exactly once, how many handshakes will take place

Answers

Call the number of people $n$ .

Looking at the first person, they can shake hands with $n-1$ other people (since they can't shake hands with themselves.)

For the second person, they can shake hands with $n-2$ other people. (They can't shake hands with themselves and they already shook with Person 1, on Person 1's turn.

If we carry on this way we see that the total number of shakes is given by:
$(n-1)+(n-2)+...+2+1$ which simplifies to: $(n(n-1))/(2)$ .

For $n=7$ we then have:
$S=(7(7-1))/(2)=(7(6))/(2)=(42)/(2)=21$
OR
$S=(7-1)+(7-2)+(7-3)+(7-4)+(7-5)+(7-6)=6+5+4+3+3+2+1=21$

There will be 42 handshakes

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