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3 years ago

Find all solutions to the equation. sin^2x + sin x = 0

Mathematics

1 answer:

vekshin13 years ago

7 0

Answer:

Step-by-step explanation:

sen x = y, soon we have

y^2 + y = 0

y = 0 or y = -1

sen x = 0 we have x = 0 + 180k $\pi$ and if

sen x = -1 we have x = 3pi/2 + 360k.pi

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A waiting room is 2/3 full when 36 people are seated. How many people are in the waiting room when it is 1/2 full?

Inga [223]

27. Do 36/2 which equals 18 and multiply that by 3. Then divide that number by 2.

6 0

3 years ago

PLEASE HELP AS SOON AS POSSIBLE

frutty [35]

Answer:

FALSE

TRUE

Step-by-step explanation:

For median,

Arrange your numbers in numerical order.

Count how many numbers you have.

If you have an odd number, divide by 2 and round up to get the position of the median number.

If you have an even number, divide by 2. Go to the number in that position and average it with the number in the next higher position to get the median.

Source: https://www.verywellmind.com/how-to-identify-and-calculate-the-mean-median-or-mode-2795785

So for April median: 2.5, 3, 3.5, 3.5 (since we have 4 numbers we divide by 2 and we count by 2 places from left. Since we have even number data, we average 3 with the next higher position to get the median so (3+3.5)/2 = 3.25

For May apply same concept and you get median to be 2.25.

Median difference is 3.25-2.25 = 1

Therefore, statement 1 is false and statement 2 is true.

For average in May, add all numbers and divide by the number of data points so May= (2.5+3+3.5+3.5)/ 4 = 3.13

Apply same concept you for April and you get 2.38 as mean.

Mean difference is 3.13-2.38 = 0.75

Therefore, statement 3 is correct (true)

4 0

3 years ago

DROP AN ANSWER PLSSSS!!!!!!!!!

Illusion [34]

Answer:

The answer is B

Step-by-step explanation:

5 0

3 years ago

What is the explicit formula for this sequence?<br> 7, 2, -3, -8...

blsea [12.9K]

Answer:

The explicit formula of that sequence is T - 5

Step-by-step explanation:

Let T represent each term in the sequence. So now try replacing T with each term in the sequence. Like this ;

7 - 5 = 2

2 - 5 = -3

-3 - 5 = -8

hope this helps

5 0

3 years ago

A force of 128 lb is required to hold a spring stretched 2 ft beyond its natural length. How much work W is done in stretching i

Agata [3.3K]

We have that the workdone in stretching natural length to is mathematically given as

W=9/2lbft

<h3>Workdone in stretching natural length</h3>

Question Parameters:

A force of 128 lb is required to hold a spring stretched 2 ft <em>beyond </em>its natural length.
Stretching it from its natural length to 9 inches beyond its natural length

Generally the Hookes equation for the Force is mathematically given as

F=Kx

Where

3.2lb=2ft*k

Thereofore

k=16

Force becomes

f=kx

f=16x

Hence

$W=8[x^2]^{3/4}_{0}$

W=9/2lbft

For more information on Length visit

brainly.com/question/2096451

6 0

2 years ago