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3 years ago

Describe how a root can be written using a rational exponent. Give an example.

Mathematics

1 answer:

lawyer [7]3 years ago

8 0

Answer:

sqrt(x)=x^1/2

Step-by-step explanation:

The root of a number is the same as writing that number to 1 over the root. In a square root, it is what number multiplied by itself (x*x), as you can see there are two, so it is that number to the 1/2 power. another example is something to the seventh power. that is calculating what number multiplied by itself 7 times would equal the nmber you are taking the root of. (x*x*x*x*x*x*x) so this would be a number to the 1/7 power.

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Please answer ill give brainliest

Mamont248 [21]

( - 4, 4) ; ( -4 , -2 ); ( 2 , - 2) would be the answer:)

3 0

3 years ago

A report states that the mean yearly salary offer for students graduating with a degree in accounting is $48,722. Suppose that a

max2010maxim [7]

Answer:

Option C - Reject H0. We have convincing evidence that the mean salary offer for accounting graduates of this university is higher than the national average of $48,722.

Step-by-step explanation:

First of all let's define the hypothesis;

Null hypothesis;H0; μ = $48,722

Alternative hypothesis;Ha; μ > $48,722

Now, let's find the test statistic for the z-score. Formula is;

z = (x' - μ)/(σ/√n)

We are given;

x' = 48,722

μ = 49,870

σ = 3900

n = 50

Thus;

z = (49870- 48722)/(3900/√50)

z = 2.08

So from online p-value calculator as attached, using z = 2.08 and α = 0.05 ,we have p = 0.037526

This p-value of 0.037526 is less than the significance value of 0.05,thus, we reject the claim that that the mean salary offer for accounting graduates of this university is higher than the national average of $48,722

8 0

4 years ago

Consider this system of equations.

Brilliant_brown [7]

1. y=8.9

SOLUTION
y=11 - 2.1
=8.9

2. 2x - 5y - 8 = 0

HOPE THIS HELPS :))

8 0

3 years ago

Factor the tribunal into two binomials than solve?

Vanyuwa [196]

Answer:

$(x-5)(x-3)=0$

$x=5 \text{ and } x=3$

Step-by-step explanation:

Quadratic Equation given:

$x^2-8x+15=0$

In order to factor this equation think that we'll have something in the format: $(x-a)(x-b)$

Once: -a -b = -c

and (-a)(-b)= d

Therefore, we have

$(x-5)(x-3)=0$

$x-5=0\\\text{or}\\x-3=0$

$x=5 \text{ and } x=3$

4 0

4 years ago

What is the equation of the midline for the function f(x) ? f(x)=1/2sin(x)+6

Studentka2010 [4]

The midline is the y value that runs straight through the middle of the wave.If you can picture the standard sine function graph. f(x) = Sin(x) reaches a maximum y = 1 and minimum y = -1 so the midline is y =0.

This equation is shifted up 6 so the midline is shifted up 6
y = 6 is equation for midline

4 0

4 years ago