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3 years ago

Mr. Kovich writes the problem

Mathematics

2 answers:

Rudiy273 years ago

5 0

Answer:

$A = \frac{1696}{32}$ is the division equation.

Step-by-step explanation:

The problem written on the 32 * A = 1,696

Now, to find the value of A, transpose 32 on the other side:

32 * A = 1,696 ⇒ $A = \frac{1696}{32}$

or, A = 53

So, $A = \frac{1696}{32}$ is the division equation.

IgorLugansk [536]3 years ago

3 0

Answer:

Dkkdkd

Step-by-step explanation:

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Statistics professors believe the average number of headaches per semester for all students is more than 18. From a random sampl

kompoz [17]

Complete Question

Statistics professors believe the average number of headaches per semester for all students is more than 18. From a random sample of 15 students, the professors find the mean number of headaches is 19 and the standard deviation is 1.7. Assume the population distribution of number of headaches is normal.the correct conclusion at $\alpha =0.001$ is?

Answer:

There is no sufficient evidence to support the professor believe

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 18$

The sample size is $n = 15$

The sample mean is $\= x = 19$

The standard deviation is $\sigma = 1.7$

The level of significance is $\alpha = 0.001$

The null hypothesis is $H_o: \mu = 18$

The alternative hypothesis is $H_a : \mu > 18$

The critical value of the level of significance from the normal distribution table is

$Z_{\alpha } = 3.290527$

The test hypothesis is mathematically represented as

$t = \frac{\= x - \mu }{ \frac{\sigma}{ \sqrt{n} } }$

substituting values

$t = \frac{ 19 - 18}{ \frac{1.7}{ \sqrt{15} } }$

$t = 2.28$

Looking at the value of t and $Z_{\alpha }$ we can see that $t < Z_{\alpha }$ so we fail to reject the null hypothesis.

This mean that there is no sufficient evidence to support the professor believe

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4 years ago

How many metres are there in one and three quarter killometres

jolli1 [7]

We know there are 1000 meters in 1 kilometer, KILO=1000.

so, how many in 3/4 km?

$\bf \begin{array}{ccll}
meter&km\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
1000&1\\\\
m&\frac{3}{4}
\end{array}\implies \cfrac{1000}{m}=\cfrac{1}{\frac{3}{4}}\implies \cfrac{1000}{m}=\cfrac{\frac{1}{1}}{\frac{3}{4}}\implies \cfrac{1000}{m}=\cfrac{1}{1}\cdot \cfrac{4}{3}
\\\\\\
\cfrac{1000}{m}=\cfrac{4}{3}\implies \cfrac{1000\cdot 3}{4}=m$

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3 years ago

Look at the corners of the shape below. Which of the following points is located at one of the corners?

AlladinOne [14]

Answer: Coordinate (1,6)

Step-by-step explanation: Because it is located on one of the corners already if you count the spaces! I hope this helped!! :D

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2 years ago

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Hatshy [7]

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