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lukranit [14]
3 years ago
8

Is the power of ( -7) to the fourth power is negative ?

Mathematics
1 answer:
Sloan [31]3 years ago
5 0
(-7)^4=2401
answer= no the result is positive 
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Round 541,776 to the nearest hundred thousand.
wel

500,000

The nearest hundred thousand would be 500,000 and 600,000, but since 541,776 has 4 in next unit, it rounds down.

6 0
3 years ago
A trail around a river is 3 1/4 miles long. What is the length, in feet, of the trail?
bezimeni [28]

Answer: 17160 feet

Step-by-step explanation:

We know that 5280 feet = 1 mile

So all we have to do is multiply 3 1/4 by 5280

Let's split the 3 and 1/4 up to make the multiplication easier

3×5280=15840

\frac{1}{4}×5280=\frac{5280}{4} =1320

Now add them together

15840+1320=17160

4 0
2 years ago
Tourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported measure of visitor volume and vis
docker41 [41]

Answer:

Explained below.

Step-by-step explanation:

In this case we need to determine if there has been an increase in the proportion of rooms occupied over the one-year period.

(a)

The hypothesis can be defined as follows:  

<em>H</em>₀: The proportion of rooms occupied over the one-year period has not increased, i.e. <em>p</em>₁ - <em>p</em>₂ ≤ 0.  

<em>Hₐ</em>: The proportion of rooms occupied over the one-year period has increased, i.e. <em>p</em>₁ - <em>p</em>₂ > 0.  

(b)

The information provided is:

n₁ = 1750

n₂ = 1800

X₁ = 1470

X₂ = 1458

Compute the sample proportions and total proportions as follows:

 \hat p_{1}=\frac{X_{1}}{n_{1}}=\frac{1470}{1750}=0.84\\\\\hat p_{2}=\frac{X_{2}}{n_{2}}=\frac{1458}{1800}=0.81\\\\\hat p=\frac{X_{1}+X_{2}}{n_{1}+n_{2}}=\frac{1470+1458}{1750+1800}=0.825

(c)

Compute the test statistic value as follows:

Z=\frac{\hat p_{1}-\hat p_{2}}{\sqrt{\hat p(1-\hat p)\times [\frac{1}{n_{1}}+\frac{1}{n_{2}}]}}

   =\frac{0.84-0.81}{\sqrt{0.825(1-0.825)\times [\frac{1}{1750}+\frac{1}{1800}]}}\\\\=2.352

The test statistic value is 2.352.

(d)

The decision rule is:

The null hypothesis will be rejected if the p-value of the test is less than the significance level.

Compute the p-value as follows:

 p-value=P(Z>2.352)=1-P(Z

The p-value of the test is very small. The null hypothesis will be rejected at any significance level.

Thus, there enough evidence suggesting that there has been an increase in the proportion of rooms occupied over the one-year period.

7 0
3 years ago
Write the slope-intercept form of the equation if the slope is 1 and the y-intercept is is -4
lubasha [3.4K]

Answer:

y=x-4

Step-by-step explanation:

Slope intercept form is y=mx+b (m=slope and b=y intercept)

so the equation would be y=1x-4 but you should simplify to y=x-4

7 0
2 years ago
Find an equation for the slope m=5/9 and which goes through the point (-45,5). Write Answer in y=Mx+b
Setler [38]

Answer:

y = ( 5 / 9 )x + 30

Step-by-step explanation:

y - y1 = m ( x - x1 )

m = 5 / 9

y - ( 5 ) = ( 5 / 9 ) [ x - ( - 45 ) ]

y - 5 = 5 / 9 ( x + 45 )

y - 5 = ( 5 / 9 )x + 25

y = ( 5 / 9 )x + 30

7 0
3 years ago
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