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3 years ago

If two measurements are very close to each other, then they are ____..

Mathematics

2 answers:

erik [133]3 years ago

6 0

The correct answer is:

B) precise

Explanation:

Precision can be broken down into two pieces:

Repeatability - The variation observed when the same person measures the same thing repeatedly with the same device.

Reproducibility: The variation observed when different people measure the same thing using the same device.

If two measurements are very close to each other, this gives repeatability. If the measurements were made by different people, this gives reproducibility.

Accuracy, however, describes the difference between the measurement and the thing's actual value. This would not involve getting the same result repeatedly; it would be getting the correct value.

Pepsi [2]3 years ago

6 0

If two measurements are very close to each other, then they are precise. The correct answer is B.

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F() = x2 + 1 g(x) = 5 - x (f+g)(x) =

frutty [35]

Answer:

(f+g)(x) = x² - x + 6

Step-by-step explanation:

We can find (f+g)(x) by adding f(x) and g(x).

f(x) = x² + 1

g(x) = 5 - x

(f+g)(x) = f(x) + g(x)

(f+g)(x) = (x² + 1) + (5 - x)

(f+g)(x) = x² + 1 + 5 - x

(f+g)(x) = x² - x + 6

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3 years ago

A special type of door lock has a panel with five buttons labeled with the digits 1 through 5. This lock is opened by a sequence

belka [17]

There are several ways the door can be locked, these ways illustrate combination.

There are 3375 possible combinations

From the question, we have:

$\mathbf{n = 5}$ --- the number of digits

$\mathbf{r = 3}$ ---- the number of actions

Each of the three actions can either be:

Pressing one button
Pressing a pair of buttons

The number of ways of pressing a button is:

$\mathbf{n_1 = ^5C_1}$

Apply combination formula

$\mathbf{n_1 = \frac{5!}{(5-1)!1!}}$

$\mathbf{n_1 = \frac{5!}{4!1!}}$

$\mathbf{n_1 = \frac{5 \times 4!}{4! \times 1}}$

$\mathbf{n_1 = 5}$

The number of ways of pressing a pair is:

$\mathbf{n_2 = ^5C_2}$

Apply combination formula

$\mathbf{n_2 = \frac{5!}{(5-2)!2!}}$

$\mathbf{n_2 = \frac{5!}{3!2!}}$

$\mathbf{n_2 = \frac{5 \times 4 \times 3!}{3! \times 2 \times 1}}$

$\mathbf{n_2 = 10}$

So, the number of ways of performing one action is:

$\mathbf{n =n_1 + n_2}$

$\mathbf{n =5 + 10}$

$\mathbf{n =15}$

For the three actions, the number of ways is:

$\mathbf{Action = n^3}$

$\mathbf{Action = 15^3}$

$\mathbf{Action = 3375}$

Hence, there are 3375 possible combinations

Read more about permutation and combination at:

brainly.com/question/4546043

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3 years ago

Line AB contains points A(4, 5) and B(9,7). What is the slope of AB?

vlabodo [156]

Answer:

2/5

Step-by-step explanation:

We can find the slope of a line given two points by using

m =(y2-y1)/(x2-x1)

= (7-5)/(9-4)

= 2/5

7 0

3 years ago

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Find x in this 45°-45°-90° triangle. x =

Zielflug [23.3K]

Use a^2 + b^2 = c^2

the triangle must be isosceles because the two angles are the same

1.2^2 + 1.2^2 = x^2
1.44 + 1.44 = x^2
2.88 = x^2
x=6√2/5
or
x ≈1.69706

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3 years ago

ANSWER ASAP will mark brainliest!

noname [10]

Answer:

Your answer is

1st Question ::::: 15%

2nd Question :::: A----B(y=12*25%)

B----- 3$ increase

New price 15$

Want more answer then follow me, like and MARK MY ANSWER AS BRAINLIST ANSWER.

I need that urgently.

8 0

3 years ago

Read 2 more answers