Which value of x makes the equation 0.1x - 2.5 = 1.0 true

A 10
B 15
C 20
D 35

To solve problems, construct one-variable equations and inequalities.

As opposed to an inequality, which links two different values, an equation declares that two expressions are equal.

Create one-variable equations and inequalities, then utilize them to solve issues.

Include simple rational and exponential equations as well as those resulting from linear and quadratic functions.

In order to answer word problems, students should be able to decipher them and create equations and inequalities.

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The correlation between variables x and y is 0.50 . The true option is option (c) .

that's the regression coefficient is positive for given bivariata.

Correlation: Correlation is a statistical measure of how linearly two variables are related (meaning they change together at a constant rate). The

sample correlation coefficient r quantifies the strength of the relationship.

Correlation Coefficient: The Correlation Coefficient formula is used to examine the strength of the relationship between data. The formula returns a value between -1 and 1.

Here:

Pearson's correlation coefficient is denoted by "r" and is

r = (n∑xy - ∑x∑y )/√( n ∑x² - (∑x )² ) ( √ n∑y² - (∑y)²)

We have given that correlation between x and y is 0.50.

cor(x,y) = √r^2 => √r^2 = 0.50 => r ^2 = (0.50)^2

=> r^2 = 0.25 > 0 but less than 0.50 ---( 1)

Regression coefficient is the constant "b" in the regression equation that gives the change in the value of the dependent variable equal to the unit change in the independent variable.

Symbolically it can be expressed as:

bₓᵧ= r σ ₓ /σ ᵧ

where x and y are correlated

σ ₓ --> standard deviation of X

σᵧ ---> standard deviation of y

We know that standard deviations is square root value of variance of observations. we also know square root any quantity is always positive or zero.

Using the above fact about standard deviations and correlation coefficient (r) is also positive we see that bₓᵧ is postive.

Hence, Regression cofficient is positive.

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Answer:

13x+6

Step-by-step explanation:

The answer is letter C. (1/2)

Answer:

C. \(\frac{1}{2}\)

Step-by-step explanation:

Hope this helps!

Let:

From that equation:

If two lines are perpendicular, then:

Given an arbitraty point:

Using the point slope equation:

Answer:

1 and - 2

Step-by-step explanation:

f(- 3) means what is the value of y when x = - 3

When x = - 3 the corresponding point is (- 3, 1 ) ← with y = 1, thus

f(- 3) = 1

Similarly for f(0)

When x = 0 the corresponding point is (0, - 2 ) ← with y = - 2 , thus

f(0) = - 2

A 2.5-foot-radius sand mandala's surface area is 19.63 square feet.

A Tibetan Buddhist practise known as "sand mandala" involves building and tearing down mandalas composed of different coloured sand. The ritualistic breakdown of the sand mandala is followed by ceremonies and viewing when it is finished to represent Buddhism's doctrine on the fleeting nature of material life.

Here is how to calculate a circle's area:

Circle area is equal to  πr² (where r is the radius of the circle)

We can use the radius value that has been provided to solve for the area using the following formula:

The sand mandala's size is πr²= π(2.5)²= π(6.25)= 19.63 square feet.

Hence, the sand mandala has a 19.63 square foot surface area.

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Answer:

$2,459.21

Step-by-step explanation:

(see attached for reference)

recall that the formula for compound interest is:

A = P [ 1 + (r/n)^ (nt) ]

where,

A = Final amount ( we are asked to find this)

P = principal amount = given as $2,340

r = Annual Interest Rate = given as 5% = 0.05

n = number of times compounded in a year = 4 (compounded quarterly)

t= time = 1 year

Substituting the values into the equation,

A = P [ 1 + (r/n)^ (nt) ]

A = 2,340 [ 1 + (0.05/4)^ (4·1) ]

A = $2,459.21

Answer:

3/10

Hope it helps

Answer: 5.54

Step-by-step explanation:

17.60

-12.06

__________

   5.54

The volume of the rectangular prism is 12 cubic inches

It is given that Each cube represent 1 unit

The base length of the rectangular prism = 4 inches

The base width of the rectangular prism = 3 inches

The height of the rectangular prism = 1 inches

The volume of the rectangular prism = The base length of the rectangular prism × The base width of the rectangular prism × The height of the rectangular prism

Substitute the values in the equation

The volume of the rectangular prism  = 4 × 3 × 1

= 12 cubic inches

Hence, the volume of the rectangular prism is 12  cubic inches

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The sequence of transformations of rectangle A onto rectangle B is

B)  A dilation with a center of dilation at the origin, followed by a translation down and a translation to the left.

The graph's curve "moves to the left/right/up/down," "it expands or compresses," or "it reflects" when a function is transformed. For instance, simply advancing the graph of the function g(x) = x2 by 3 units will yield the graph of f(x) = x2 + 3. Function transformations are very useful for graphing the functions by simply moving, expanding, compressing, or reflecting the curve, as opposed to having to start from scratch with the graphing.

A function transformation "moves," "resizes," or "reflects" the parent function's graph, depending on the case. Function transformations can be broadly divided into three categories:

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Answer:

471.24 cubic inches

Step-by-step explanation:

First, get the radius.

10 divided by 2

Now do 5 times 5 to get 25

Now do 25 times 6 to get 150

Lastly, multiply 150 by 3.14 to get 471.24 (rounded)

The length of the shorter piece which was cut from 125 inch long board is 25 inch.

Let the shorter piece be x inches long and the longer pieces be 4x inches long.

The total length of the of the board = 125inch

According to the statement above the general expression will be ,

            x + 4x = 125

Solving the general expression for x we get,

           5x = 125

            x =  125/5

            x = 25

Thus, the length of the shorter piece will be = x inch = 25 inch

           The length of the longer piece will be = 4x inch = 4*25 = 100 inch

Hence the length of the shorter piece will be 25 inch.

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Answer:

Step-by-step explanation:

9

Answer:

D.) y=-x-2

Step-by-step explanation:

Answer:

D.) y=-x-2

Step-by-step explanation:

Trust me I just know

Answer:

well, 11 days

Step-by-step explanation:

if you were to put take out the y and put 2600 in the y place (2600=235x+15)

you solve that, and will come to 11 days

further explaining:

2600-15 = 2585

2585 / 235 = 11

( I'm not sure if this is right, the question is worded weird and almost doesn't make sense)

but I think it is looking for substitution

Hope this helps!

Answer:

I am given a number of cans, which is y, and I need to find the number of days, which is x. To do this, I would substitute 2600 for y, to get 2600 = 235x + 15. Solving for x, I would get x = 11. Thus, it would take 11 days to collect 2600 cans.

This is the Sample Answer on Edge.

The solution to the word problem 4 less than a number n is -15 is n = -11

An equation is an expression that shows the relationship between two or more numbers and variables.

4 less than a number n is represented as:

n - 4

Hence, 4 less than a number n is -15 is given by:

n - 4 = -15

adding 4 to both sides:

n - 4 + 4 = -15 + 4

n = -11

The value of n is -11

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Answer:

A major source of hydroelectric power: Niagara Falls.

A volcano that grew out of a cornfield in 1943: Paricutin.

A natural barrier to settling in the West: Rocky Mountains.

The highest mountain peak in North America: Mount McKinley.

Mark as brainliest...

The most effective teaching method is discussion groups. This is because discussion groups allow for more interaction and engagement between the employees and the material.

Additionally, discussion groups allow for employees to ask questions and receive clarification on the material, which can help them better understand and apply the safety principles.

This is calculated as,

programmed instruction booklets: 9, 10, 8, 9, 10

lectures: 7, 5, 9, 8, 6

television presentation: 10, 8, 9, 9, 7

discussion groups: 8, 9, 10, 8, 9

However, if we assume that the higher the test score, the more effective the teaching method, then it appears that the television presentation and the discussion group methods were the most effective.

The most effective teaching method is discussion groups.

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Answer:

10s+24

Step-by-step explanation:

2(5s+12)=2(5s)+2(12)=10s+24

Answer:

2ft 8in

Step-by-step explanation:

Text if you want explanation. Welcome❤

An equation that matches the table include the following: y = x + 5.

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):

y - y₁ = m(x - x₁)

Where:

First of all, we would determine the slope of this line;

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = (6 - 5)/(1 - 0)

Slope (m) = 1/1

Slope (m) = 1.

At data point (0, 5) and a slope of 1/, a linear equation in slope-intercept form for this line can be calculated by using the point-slope form as follows:

y - y₁ = m(x - x₁)

y - 5 = 1(x - 0)

y - 5 = x

y = x + 5

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Answer:

-38x - 14y

Step-by-step explanation:

2[x+2y - 24x - 12y + 4x + 3y]

2 [ -19x -7y]

- 38x - 14y

Answer:

A is correct

Step-by-step explanation:

:D

Answer:

yes its A. Avogadros number

Step-by-step explanation:

Z is inversely proportional to Y and directly proportional to X. Z has a value of 5 if X is 15 and Y is 9. When X = 23 and Y = 14 are this value then Z=5.

Given that,

Z is inversely proportional to Y and directly proportional to X.

Z has a value of 5 if X is 15 and Y is 9.

We have to find if X = 23 and Y = 14 what is Z.

We can write Z is directly proportional to X means (\(\times\) by X).

Z is inversely proportional to Y means (\(\div\) by Y).

That is Z=\(\frac{KX}{Y}\)

We know Z=5

5=\(\frac{KX}{Y}\)

We know X and Y also that are 15 and 9.

5=\(\frac{K\times15}{9}\)

5\(\times\)9=K\(\times\)15

45=15K

K=\(\frac{45}{15}\)

K=3.

We got the k value as 3.

Now,  Z=\(\frac{KX}{Y}\)

Z=\(\frac{3\times23}{14}\)

Z=\(\frac{69}{14}\)

Z=5 (approximately 4.9 is 5)

Therefore, When X = 23 and Y = 14 are this value then Z=5.

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The solution of 2\(z^{3}\) + 16i = 0 is option ii. \(\sqrt{3}\)– i. To solve the equation 2\(z^3\)+ 16i = 0, we need to isolate z.

First, we can factor out 2 to get \(z^3\) + 8i = 0.

Then, we can take the cube root of both sides to get z = -2i∛2.

To simplify this expression, we can multiply the numerator and denominator by ∛4 to get z = -2i(∛2/2) = -i∛2.

Option ii, V3 – i, can be simplified to ∛2(cos(5π/6) + i sin(5π/6)) using the polar form of complex numbers.

This is equivalent to -i∛2 in rectangular form, which is the same as our solution for z.

Therefore, option ii is the correct solution to the equation.

None of the other options are equal to -i∛2, so they are not solutions to the equation.

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Answer:

Should I tell my parents I'm adopted? lol

Step-by-step explanation:

Answer:

When did you die?

Step-by-step explanation:

Answer:

80 degrees

Step-by-step explanation:

180 - 100 = 80