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4 years ago

Tell me Dark (appropriate) facts, best dark fact gets brainliest (repost since Echo1255 got it taken down)

Mathematics

2 answers:

RSB [31]4 years ago

7 0

Answer:

Belly buttons grow special hairs to catch lint.

Step-by-step explanation:

natulia [17]4 years ago

5 0

Answer:

a humans head remains concious for around 20 more seconds after being decapitated

Step-by-step explanation:

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There are 8 rows in a theater with 12 seats in each row in the middle of the first three rows 4 seats are broken

poizon [28]

There are 84 seats left

7 0

4 years ago

Convert the following fraction into a decimal.

ira [324]

Answer:

0.525

...................

6 0

2 years ago

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Find an equation for the nth term of the sequence.

tensa zangetsu [6.8K]

Answer:

a. an = -1 • 4^(n - 1)

Step-by-step explanation:

It's easy see that each term is multiplied by 4 to get the next term, so the common ratio will be 4, that reduces the choices to answers A and B (since C and D use -1 as common ratio). Also, normally a geometric progression uses "n-1", so we'll first try with A to see if it works.

a1 = (-1) * 4^0 = -1 * 1 = -1

a2 = (-1) * 4^1 = -1 * 4 = -4

a3 = (-1) * 4^2 = -1 * 16 = -16

Yes, it works... so the answer is an = -1 • 4^(n - 1)

6 0

3 years ago

HELP HELP HELP FAST PLS PLS

riadik2000 [5.3K]

Answer:

a) System of equations will be: $x+y=500\: and\:5x+2y=1789$

b) Number of adult tickets sold = 263

Number of students tickets sold = 237

Step-by-step explanation:

Let:

Number of adult tickets sold = x

Number of students tickets sold = y

As Marc sold total 500 tickets, the expression will be: $x+y=500$

Student tickets cost $2 and adult tickets cost $5. Marc's sales totalled $1,789.

The expression will be: $5x+2y=1789$

So, system of equations will be: $x+y=500\: and\:5x+2y=1789$

Solve the system to find value of x and y

Let:

$x+y=500--eq(1)\\5x+2y=1789--eq(2)$

Multiply equation 1 by 2 and subtract

$2x+2y=1000\\5x+2y=1789\\-\:\:\:-\:\:\:\:\:\:\:\:\:-\\------\\-3x=-789\\x=\frac{-789}{-3}\\x=263$

We get value of x = 263

Now finding value of y by putting value of x in eq(1)

$x+y=500\\263+y=500\\y=500-263\\y=237$

We get value of y = 237

Number of adult tickets sold = x = 263

Number of students tickets sold = y = 237

3 0

3 years ago

System of Equations<br><br> -x+3y-9=0<br> x-3y=-9

valkas [14]

Answer: Infinite Solutions

Elimination Method
-x + 3y - 9 = 0
x - 3y = -9
———————— x and y cancels out
-9 = -9; is True so infinite Solutions

Note: if the variables cancel out, and the statement is true, its infinite solutions
if the variable cancels out, and the statement is false, its no solutions

8 0

3 years ago

Read 2 more answers