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3 years ago

12

True or False: A number is divisible by 6 if the last digit is even or the sum of all digits is divisible by 3.

2 answers:

telo118 [61]3 years ago

4 0

Not all even numbers are divisible by 6

Alisiya [41]3 years ago

4 0

<h2>True.... </h2>

A number is divisible by 6, if the last digit is even and the sum of the digits is divisible by 3

Hope this will help...

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The product of two numbers is 32. The first number, x, is one-half of the second number, y. Which system of equations can be use

Dmitry_Shevchenko [17]

8 and 4 is your answer

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3 years ago

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Practice multiplying numbers by powers of 10.

Juliette [100K]

Answer:

Multiply (400 + 20 + 3) x 10000

Add 4 zeros to the end of 423

Step-by-step explanation:

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3 years ago

In analyzing the city and highway fuel efficiencies of many cars and trucks, the mean difference in fuel efficiencies for the 60

Olegator [25]

Answer:

$7.38-1.96\frac{2.51}{\sqrt{601}}=7.18$

$7.38+1.96\frac{2.51}{\sqrt{601}}=7.58$

For this case the confidence interval is given by :

$7.18 \leq \mu \leq 7.58$

Step-by-step explanation:

Data provided

$\bar X=7.38$ represent the sample mean for the fuel efficiencies

$\mu$ population mean

s=2.51 represent the sample standard deviation

n=601 represent the sample size

Confidence interval

The formula for the confidence interval of the true mean is given by:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom for this case is given by:

$df=n-1=601-1=600$

The Confidence level for this case is 0.95 or 95%, and the significance level $\alpha=0.05$ and $\alpha/2 =0.025$ and the critical value is given by $t_{\alpha/2}=1.96$

Replcing into the formula for the confidence interval is given by:

$7.38-1.96\frac{2.51}{\sqrt{601}}=7.18$

$7.38+1.96\frac{2.51}{\sqrt{601}}=7.58$

For this case the confidence interval is given by :

$7.18 \leq \mu \leq 7.58$

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Answer:

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Step-by-step explanation:

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3 years ago

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The diameter of the circle is needed. But to solve, you would simply multiply the diameter of the circle by pi (3.14).

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3 years ago