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liq [111]
2 years ago
8

Simplify this power raised to a power: (54)4 1. Expand using four factors of 54:         54 ∙ 54 ∙ 54 ∙ 54 2. Apply the product

of powers rule:         54+ 4+ 4+ 4 3. Simplify:                   5x What is the value of x in the simplified power? x =
Mathematics
2 answers:
Olegator [25]2 years ago
4 0

Answer:

X=16

Step-by-step explanation:

sasho [114]2 years ago
3 0

Answer:

x=16

Step-by-step explanation:

you add all the 4s from the second step and get a product of 16.

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In a random sample of 8 people with advanced degrees in biology, the mean monthly income was $4744 and the standard deviation wa
eimsori [14]

Answer: u= ( 4342.08, 5145.92).

Step-by-step explanation: the population mean is estimated using the sample by the formulae assuming a 95% confidence level

u = x' + Zα/2 * (√σ/n) or x' - Zα/2 * (√σ/n)

u = estimated population mean

x' = sample mean = 4744

n = sample size =8

σ = sample standard deviation. = 580

α = level of significance = 1- confidence level = 1-0.95= 0.05

Zα/2 = z score from the normal distribution table for a 2 tailed test = 1.96

First boundary value for interval

u = 4744 + 1.96 ( 580/√8)

u = 4744 + 1.96 * (205.0609)

u = 4744 + 401.92

u = 5145.92

Second boundary value for interval

u = 4744 - 1.96 ( 580/√8)

u = 4744 - 1.96 * (205.0609)

u = 4744 - 401.92

u = 4342.08

Thus the confidence interval for population mean is

u= ( 4342.08, 5145.92).

3 0
2 years ago
A neighborhood group has $28,000 to spend on improvements to a park. They spend $7,600 on playground equipment and $115 on each
Natali [406]

Answer:

Option (A) is the answer.

5 0
2 years ago
Read 2 more answers
the eatery restaurant has 200 tables on a recent evening there were reservations for one tenth of the table how many tables will
stellarik [79]
X=200/10
x=20

<span>QWC - There were 20 tables reserved.</span>
8 0
2 years ago
The tires of a tractor are 4.5 feet tall. How many 360-degree rotations do the tires make when the tractor travels 170 feet? Rou
slavikrds [6]
Hello! 

Ok so we have a tire 4.5ft in diameter. We want to know how many revolutions it makes in 170ft

So we have s=r*theta where s is arc length or distance traveled and r is the radius and theta is the angle in radians that it travels through, and this is what we want to know. We are given the rest so we have;

170ft=4.5ft/2 * theta so solving for theta we get 

theta=340ft/4.5ft = 75.56 radians so now we just convert radians to revolutions and we know pi=3.14rad and 2pi is one rev and to convert to degrees its radians*( 360/2pi)=deg and this reduces to 180/pi so we have;


75.56radians * 180/pi = 4329 degrees travelled through so to get revolutions we now just divide this by 360deg for total revs. So we have;

4329deg/360deg=12 revolutions

Hope this helps! Any questions please ask! Thank you so much!
5 0
2 years ago
What is the result when 0.81x - 0.45 is subtracted from 3.28x + 1.4
sladkih [1.3K]
<span> 0.81x - 0.45 is subtracted from 3.28x + 1.4

</span>3.28x + 1.4 - (0.81x - 0.45) = 3.28x + 14 - 0.81x + 0.45

= (3.28x - 0.81x) + ( 14 +0.45)

= 4.09x + 14.45
6 0
2 years ago
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