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3 years ago

Find the distance between the two points rounding to the nearest tenth (if necessary).

Mathematics

1 answer:

eimsori [14]3 years ago

8 0

Answer:

≈ 7.2

Step-by-step explanation:

Use distance formula:

d = √(8-4)² + (8-2)²

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What is 7.65% of $509.25

harina [27]

Answer:

38.957625 US$

Step-by-step explanation:

38.957625 US$

6 0

3 years ago

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Question 4(Multiple Choice Worth 1 points) (07.04 LC) Factor completely 49x2 − 9. (7x + 3)(7x − 3) (7x + 3)(x − 3) (7x − 3)(7x −

scoundrel [369]

Answer:

Step-by-step explanation:

We take a look at this expression: $49x^2-9$ and notice that both terms are square numbers. $49x^2=(7x)^2$ and $9=3^2$ .

There is a specific formula that I highly recommend you memorize involving differences of squares. It states that given the difference of squares $a^2-b^2$ , it can always be factored into $(a+b)(a-b)$ .

Here, we can apply that. In this case, a = 7x and b = 3. So:

$49x^2-9=(7x)^2-3^2=(7x+3)(7x-3)$

Thus, the answer is A.

Hope this helps!

6 0

3 years ago

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One third of a shape as shown drop squares to complete the whole shape

klio [65]

You would have to add 4 boxes under the original boxes, like so:

oooo
oooo

*The circles represent boxes.

And then to make the whole shape you would add for boxes to the side:

oooooo
oooooo

That is your outcome! I hope this helped :D

5 0

3 years ago

A population has a standard deviation of 7.89. what is the approximate standard error of the mean for a sample size of 300?

scoundrel [369]

Answer:

Below.

Step-by-step explanation:

Standard error =

standard deviation / √n

= 7.89 / √300

= 0.456 approx.

6 0

2 years ago

The manager of the Danvers-Hilton Resort Hotel stated that the mean guest bill for a weekend is $600 or less. A member of the ho

AlladinOne [14]

Answer:

The hypotheses should be used to test the manager’s claim:

$H_0: \mu \leq 600$

$H_a: \mu > 600$

Upper tail.

Step-by-step explanation:

Consider the provided information.

The manager of the Danvers-Hilton Resort Hotel stated that the mean guest bill for a weekend is $600 or less.

If there is no statistical significance in the test then it is know as the null which is denoted by $H_0$ , otherwise it is known as alternative hypothesis which denoted by $H_a$ .

$H_0$ : The mean guest bill for a weekend is less than or equal to $600. $H_0: \mu \leq 600$

$H_a$ : The mean guest bill for a weekend is greater than $600. $H_a: \mu > 600$

If $H_a : \mu > \mu_0$ then upper tail.

Hence, it is upper tail.

5 0

3 years ago