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KIM [24]
1 year ago
14

Is almost always better to cite exact numbers rather than to round statistics up or down true or false

Mathematics
1 answer:
bulgar [2K]1 year ago
4 0

When scientists make a measurement or calculate some quantity from their data, they generally assume that some exact or "true value" exists based on how they define what is being measured (or calculated). Scientists reporting their results usually specify a range of values that they expect this "true value" to fall within. The most common way to show the range of values is:

measurement = best estimate ± uncertainty

Experimental uncertainties should be rounded to one significant figure. Experimental uncertainties are, by nature, inexact. Uncertainties are almost always quoted to one significant digit (example: ±0.05 s). If the uncertainty starts with a one, some scientists quote the uncertainty to two significant digits

Estimating the uncertainty in a single measurement requires judgment on the part of the experimenter.

For more information on statistics click on the link below:

brainly.com/question/15525560

#SPJ4

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Help ill give you Brainliesttt ‼️‼️‼️‼️‼️‼️
Lesechka [4]

Answer:

Step-by-step explanation:

+ we take t- number of tickets and each ticket cost $7.

So t is too the number of people who buy tickets, then

0\leq t\leq 200

A) We can calculate the amount of money: M= 7t where 0\leq t\leq 200

B) The domain for t is 0\leq t\leq 200, t is an integer.

C) The range for the amount M:

0*7\leq M\leq 200*7\\0\leq M\leq 1400

5 0
3 years ago
What’s the answer for 3n-6=33 I have to solve for n
dezoksy [38]

Answer:

n=13

Step-by-step explanation:

3n-6=33

Add 6 to both sides

3n=39

Divide both sides by 3

n=13

7 0
2 years ago
Read 2 more answers
Write the expression as a square of a monomial.
frozen [14]

Answer:

The square of a monomial is (9x^2)^2

Step-by-step explanation:

Consider the provided monomial.

81x^4

We need to Write the expression as a square of a monomial.

The above expression can be written as:

9\times 9\times x^2\times x^2

9^2(x^2)^2

(9x^2)^2

Hence, the square of a monomial is (9x^2)^2

8 0
3 years ago
In Triangle XYZ, A is the midpoint of XY, B is the midpoint of YZ, and C is the midpoint of XZ.
frutty [35]

The perimeter of triangle ABC is 24 units

Step-by-step explanation:

There is a fact in any triangle, the segment joining the mid points of

two sides of the triangle is:

  • Parallel to the third side
  • Its length is half the length of the third side

In Δ XYZ

∵ A is the mid point of XY

∵ B is the mid point of YZ

∴ AB = \frac{1}{2} XZ

∵ XZ = 18 units

∴ AB = \frac{1}{2} × 18 = 9 units

∵ C is the mid point of XZ

∵ B is the mid point of YZ

∴ BC = \frac{1}{2} XY

∵ AY = 7 units

∵ AY = \frac{1}{2} XY

∴ 7 = \frac{1}{2} XY

- Multiply both sides by 2

∴ 14 = XY

∴ BC = \frac{1}{2} × 14 = 7 units

∵ A is the mid point of XY

∵ C is the mid point of XZ

∴ AC = \frac{1}{2} YZ

∵ BZ = 8 units

∵ BZ = \frac{1}{2} YZ

∴ 8 = \frac{1}{2} YZ

- Multiply both sides by 2

∴ 16 = YZ

∴ AC = \frac{1}{2} × 16 = 8 units

∵ The perimeter of any triangle is the sum of the lengths of its sides

∴ Perimeter Δ ABC = AB + BC + AC

∴ Perimeter Δ ABC = 9 + 7 + 8 = 24 units

The perimeter of triangle ABC is 24 units

Learn more:

You can learn more about triangles in brainly.com/question/10677255

#LearnwithBrainly

3 0
3 years ago
Ignore this
marissa [1.9K]

Answer:

Thanks for free

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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