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3 years ago

Divide.

Mathematics

2 answers:

bonufazy [111]3 years ago

8 0

Answer:

-3

Step-by-step explanation:

MrRissso [65]3 years ago

4 0

Answer:

The answer is -3

Step-by-step explanation:

Because dividing each number you get a negative. Remember that a negative and a positive make a negative. so just divide normally and put a negative sign in front of it.

Also can you mark me Brainliest. Thanks in advance!

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the wind on any random day in bryan is normally distributed with a standard deviation of 5.1 mph. a sample of 16 random days in

Karolina [17]

The 98% confidence interval estimate of the population mean is

15.823 < μ < 22.177

In the given situation the wind on a random day in Bryan is normally distributed with the following values;

Standard Deviation = ( δ ) = 5.1 mph

A random day of 16 is taken into account for the consideration of Bryan's average value of 19mph.

n = 16

By taking the confidence level of T - Factor, we get the;

At a 98% confidence level, the t is,

tα /2,df = t₀.₀₄,₂₄ = 2.492 ( df = hours in a day)

Margin of error = E = tα/2,df * (δ /√n)

= 2.492 * (5.1 / √16)

= 3.177

The 98% confidence interval estimate of the population mean is,

x - E < μ < x + E

19 - 3.177 < μ < 19 + 3.177

15.823 < μ < 22.177

The 98% confidence interval estimate of the population mean is

15.823 < μ < 22.177

To learn more about Standard Deviation click here:

brainly.com/question/13905583

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7 0

1 year ago

How many 2 digit numbers do not use the numeral 5?

hram777 [196]

Alot! So the ones with 5 like 15,25,35,45,55,65,75,85,95! Each one inbetween is 10 so it would be 80

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4 years ago

During the summer while school is out. Nick walks dogs to earn money. He walks 24 dogs during an 8 hour shift. At this rate, how

Tresset [83]

Answer:

9 dogs

Step-by-step explanation:

No of dogs that he walks in 8 hours :- 24 dogs

No of dogs that he walks in one hour :- 24 ÷ 8

= 3 dogs

With this Info,

No of dogs he walks in 3 hours would be :- 3 x 3

= 9 dogs

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3 years ago

Audrey uses 5/8 cup of fruit in each smoothie she makes. She makes 6 smoothies to share with her friends. How many cups of fruit

Karo-lina-s [1.5K]

C, 3 3/4 b/c 5/8•6 = 3 3/4

6 0

4 years ago

Read 2 more answers

Find the value of the variable y, where the sum of the fraction 2/y-3 and 6/y+3 is equal to the quotient.

NISA [10]

Answer:

Here we need to solve:

$\frac{2}{y - 3} + \frac{6}{y + 3 } = \frac{\frac{2}{y-3}}{\frac{6}{y + 3} }$

The sum of the fractions is equal to the quotient between the fractions.

Notice that the two values:

y = 3

y = -3

make the denominator equal to zero, so those values are restricted.

We can simplify the right side to get:

$\frac{2}{y - 3} + \frac{6}{y + 3 } = \frac{\frac{2}{y-3}}{\frac{6}{y + 3} } = \frac{2*(y + 3)}{6*(y - 3)} = 3*\frac{y + 3}{y - 3}$

Now we can multiply both sides by (y - 3)

$(y - 3)*(\frac{2}{y - 3} + \frac{6}{y + 3 }) = 3*(y + 3)\\2 + 6*\frac{y -3}{y + 3} = 3*(y + 3)$

Now we can multiply both sides by (y + 3)

$(2 + 6*\frac{y -3}{y + 3})*(y + 3) = 3*(y + 3)*(y + 3)$

$2*(y + 3) + 6*(y - 3) = 3*(y + 3)*(y + 3)\\\\2*y + 6 + 6*y - 18 = 3*(y^2 + 2*y*3 + 9)\\\\8*y - 12 = 3*y^2 + 6*y + 33\\\\0 = 3*y^2 + 6*y + 33 - 8*y + 12\\\\0 = 3*y^2 - 2*y + 45$

First, let's see the determinant of that quadratic equation:

$D = (-2)^2 - 4*3*45 = -536$

We can see that it is negative, thus, there are no real solutions of the equation.

Thus, there is no value of y such that the origina equation is true,

6 0

3 years ago