All categories

2 years ago

HELP ME FOR POINTS AND BRAINETEST

Mathematics

2 answers:

shutvik [7]2 years ago

8 0

Answer:

71.8 = 7 x 10 + 1 x 1 + 8 x 0.1

7.018 = 7 x 1 + 1 x 0.01 + 8 x 0.001

0.718 = 7 x 0.1 + 1 x 0.01 + 8 x 0.001

Step-by-step explanation:

Alexxandr [17]2 years ago

4 0

___________________________________________________________

Number 1 $>See Below$

$The\;second\;one,\; 7 *10+1*1+8*0.1$

___________________________________________________________

Number 2 $>See\;Below$

$The\;third\;one, 7*1+1*0.01+8*0.001$

___________________________________________________________

Number 3 $>See\;Below$

$The\;fourth\;one,\;7*0.1 + 1 * 0.01 + 8 * 0.001$

___________________________________________________________

If this helped, please mark me as brainliest if possible!

$\left[\begin{array}{ccc}Thanks,\;JustSomeIdiot.\end{array}\right]$

You might be interested in

Write a function describing the relationship of the given variables.

Oliga [24]

Answer:

The function describing the relationship of V and t is V = 3t²

Step-by-step explanation:

* Lets explain the meaning of direct variation

- The direct variation is a mathematical relationship between two

variables that can be expressed by an equation in which one

variable is equal to a constant times the other

- If Y is in direct variation with x (y ∝ x), then y = kx, where k is the

constant of variation

* Now lets solve the problem

# V is varies directly with the square of t

- Change the statement above to a mathematical relation

∴ V ∝ t²

- Chang the relation to a function by using a constant k

∴ V = kt²

- To find the value of the constant of variation k substitute V and t

by the given values

∵ t = 6 when V = 108

∵ V = kt²

∴ 108 = k(6)² ⇒ simplify the power 2

∴ 108 = 36k ⇒ divide both sides by 36 to find the value of k

∴ 3 = k

- The value of the constant of variation is 3

∴ The function describing the relationship of V and t is V = 3t²

3 0

2 years ago

BRAINLIEST Is the function of presented by the table linear or nonlinear and why?

Aloiza [94]

Answer:

it is a linear function because the x value doesn't repeat

Step-by-step explanation:

5 0

3 years ago

A library contains 2000 books. There are 3 times as man non fiction books. Write and solve a systems of equations to determine t

icang [17]

Answer:

The number of fiction books is 500 and non fiction books is 1500.

Step-by-step explanation:

Given:

Total book library contains = 2000.

There are 3 times as many non fiction books as fiction books.

Now, to determine the number of non fiction books and fiction books.

Let the fiction books be $x.$

And the non fiction books be $3x.$

Total books = 2000.

Now, to get the number of non fiction books and fiction books we put an equation:

$3x+x=2000.$

$4x=2000.$

Dividing both sides by 4 we get:

$x=500.$

Fiction books = 500.

Non fiction books = $3x=3\times 500=1500.$

Therefore, the number of fiction books is 500 and non fiction books is 1500.

4 0

2 years ago

A triangle has dimensions 5, 7, and 11. A similar triangle is drawn with a scale factor of 1.4. What are the dimensions of the n

Artyom0805 [142]

Your answer would be B

3 0

2 years ago

Read 2 more answers

Explain the circumstances for which the interquartile range is the preferred measure of dispersion. What is an advantage that th

KatRina [158]

Answer:

Explain the circumstances for which the interquartile range is the preferred measure of dispersion

Interquartile range is preferred when the distribution of data is highly skewed (right or left skewed) and when we have the presence of outliers. Because under these conditions the sample variance and deviation can be biased estimators for the dispersion.

What is an advantage that the standard deviation has over the interquartile range?

The most important advantage is that the sample variance and deviation takes in count all the observations in order to calculate the statistic.

Step-by-step explanation:

Previous concepts

The interquartile range is defined as the difference between the upper quartile and the first quartile and is a measure of dispersion for a dataset.

$IQR= Q_3 -Q_1$

The standard deviation is a measure of dispersion obatined from the sample variance and is given by:

$s=\sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}$

Solution to the problem

Explain the circumstances for which the interquartile range is the preferred measure of dispersion

What is an advantage that the standard deviation has over the interquartile range?

The most important advantage is that the sample variance and deviation takes in count all the observations in order to calculate the statistic.

8 0

2 years ago