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3 years ago

Write the fraction 72/81 in simplest form.

Mathematics

2 answers:

wel3 years ago

6 0

Answer: 8/9

Hope it helped!

noname [10]3 years ago

5 0

Answer:

8/9

Step-by-step explanation:

Find the GCD (or HCF) of numerator and denominator

GCD of 72 and 81 is 9

72 ÷ 9

81 ÷ 9

= 8/9

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If f(x)= 3x^2- 4 and g(x) = 2x-6, what is g(f(2))?<br> -16<br> 0-2<br> O 8<br> 10

nexus9112 [7]

Answer:

Step-by-step explanation:

g(f(x)) = g(3x² - 4) = 2(3x² - 4) - 6

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2 years ago

Linear equations and interception

iVinArrow [24]

Answer:

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Step-by-step explanation:

To find x - intercept, substitute y = 0 in the equation and solve for x.

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2 years ago

25 less than 4 times a number is 47. What is the number?

snow_tiger [21]

Answer:

Step-by-step explanation:

25 + 47 = 72

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3 years ago

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GalinKa [24]

Answer:

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3 years ago

Read 2 more answers

A manager records the repair cost for 14 randomly selected dryers. A sample mean of $88.34 and standard deviation of $19.22 are

s2008m [1.1K]

Answer:

Hence the 90% confidence interval estimate of the population mean is $(79.24 , 97.44)$

Step-by-step explanation:

Given that,

Point estimate = sample mean = $\bar x$ = 88.34

sample standard deviation = s = 19.22

sample size = n = 14

Degrees of freedom = df = n - 1 = 13

Critical value = $t\alpha /2,$ df = 1.771

Margin of error

$E = t\alpha/2,df \times (\frac{s}{\sqrt{n} } )\\= 1.771 \times (19.22 / \sqrt 14)$

Margin of error = E = 9.10

The 90% confidence interval estimate of the population mean is,

$\bar x - E < \mu < \bar x + E\\\\88.34 - 9.10 < \mu < 88.34 + 9.10\\\\79.24 < \mu < 97.44\\(79.24 , 97.44)$

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2 years ago