All categories

3 years ago

NEED HELP ASAP NOW OR I DIE. -9 to the 28th power as a positive or negative explain

Mathematics

1 answer:

alexdok [17]3 years ago

4 0

Answer:

Positive.

Step-by-step explanation:

Negative to a even power becomes positive

You might be interested in

The length of a rectangle is 3 feet longer than the width. The perimeter is 30 feet. Find the length and width of the rectangle.

barxatty [35]

Answer:

do you mean height, because then the answer would be a length of 9 and height of 6

Step-by-step explanation:

9+9=18

6+6=12

18+12=30

5 0

3 years ago

Find the slope of the given line, if it is defined. 2x + 1 = 0

svlad2 [7]

Given :

A line 2x + 1 =0 .

To Find :

The slope of the given line .

Solution :

We know , slope of line is given by the tangent of the angle between the x-axis and the line .

Now, for line 2x + 1 =0 i.e $x=\dfrac{-1}{2}$ .

The line is perpendicular to x-axis and cuts the x-axis at $\dfrac{-1}{2}$ .

Therefore , the angle between the line and x-axis is $90^o$ .

So , slope $m=\tan\ 90^o$ i.e undefined .

Therefore , the slope of given line is not defined .

Hence , this is the required solution .

5 0

3 years ago

What is the greatest common factor of 28x²y-7xy^5?

Alchen [17]

The greatest common factor of this can be solved by looking at the individual parts and splitting it up.

First, we have 28 and 7. Well, thats an easy one. 7 goes into 28 4 times so we are now left with 4 and 1.

We can also write the rest of this like this 4(x*x*y) - 1(x*y*y*y*y*y)

Now, what values are in both equations. We have one x and one y that can be taken out of both.

We end up with 7xy(4x-7y^4)

3 0

3 years ago

Read 2 more answers

It is believed that a stock price for a particular company will grow at a rate of $5 per week with a standard deviation of $1. A

IgorLugansk [536]

Answer:

Step-by-step explanation:

We would set up the hypothesis test. This is a test of a single population mean since we are dealing with mean

For the null hypothesis,

µ = $5

For the alternative hypothesis,

µ < $5

number of samples taken = 10

Sample mean, x = (4 + 3 + 2 + 3 + 1 + 7 + 2 + 1 + 1 + 2)/10 = 2.6

To determine sample standard deviation, s

s = √(summation(x - mean)/n

n = 12

Summation(x - mean) = (4 - 2.6)^2 + (3 - 2.6)^2 + (2 - 2.6)^2 + (3 - 2.6)^2 + (1 - 2.6)^2 + (7 - 2.6)^2 + (2 - 2.6)^2 + (1 - 2.6)^2 + (1 - 2.6)^2 + (2 - 2.6)^2 = 30.4

s = √30.4/10 = 1.74

Since the number of samples is 10 and no population standard deviation is given, the distribution is a student's t.

Since n = 10,

Degrees of freedom, df = n - 1 = 10 - 1 = 9

t = (x - µ)/(s/√n)

Where

x = sample mean = 2.6

µ = population mean = 5

s = samples standard deviation = 1.74

t = (2.6 - 5)/(1.74/√10) = - 4.36

We would determine the p value at alpha = 0.05. using the t test calculator. It becomes

p = 0.000912

7 0

3 years ago

Uiz

kodGreya [7K]

Answer:y=-3x+14

Step-by-step explanation:

4 0

3 years ago

NEED HELP ASAP NOW OR I DIE. -9 to the 28th power as a positive or negative explain​

NEED HELP ASAP NOW OR I DIE. -9 to the 28th power as a positive or negative explain