If the mass of a typical star is 2.5x 1034 grams and there are approximately 600,000,000,000 stars in a galaxy, what
is the total mass of these stars?

The variable y as the subject formula in the equation (2/3)y + v = x is y = (3/2)(x) - (3/2)(v)

Given the equation in the question;

(2/3)y + v = x

y = ?

Solve for y, we make 'y' the subject of the formula.

(2/3)y + v = x

Subtract v from both sides

(2/3)y + v - v = x - v

(2/3)y = x - v

Multiply both sides by 3/2

(3/2)(2/3)y = (3/2)(x - v)

y = (3/2)(x - v)

Apply distributive property.

y = (3/2)(x) - (3/2)(v)

Therefore, y equals (3/2)(x) - (3/2)(v).

Learn more about distributive property here: https://brainly.com/question/6276874

#SPJ1

The given fractions are sorted in ascending order following the rules of sorting fractions.

What are fractions?

Any number of equal parts is represented by a fraction, which also represents a portion of a whole. The number of components of a specific size is expressed as a fraction.

Some of the rules for arranging fractions are as follows:

Now following the above rules, we can solve each question.

        We will make the denominators the same.

      The LCM of 40, 40, 20,4,5 = 40

     So the fractions become,

         [tex]\frac{21}{40} , \frac{29}{40} ,\frac{34}{40},\frac{30}{40},\frac{32}{40}[/tex]

      Now sort them.

     [tex]\frac{21}{40} , \frac{29}{40} ,\frac{30}{40},\frac{32}{40},\frac{34}{40}[/tex]

  2. [tex]\frac{7}{9} , \frac{2}{9} ,\frac{5}{6},\frac{13}{18},\frac{3}{18}[/tex]

   LCM of 9,6,18 = 18

    So the fractions become,

      [tex]\frac{14}{18} , \frac{4}{18} ,\frac{15}{18},\frac{13}{18},\frac{3}{18}[/tex]

    Now sort them.

  [tex]\frac{3}{18} , \frac{4}{18} ,\frac{13}{18},\frac{14}{18},\frac{15}{18}[/tex]

3.  [tex]\frac{9}{4} , \frac{4}{3} ,\frac{5}{3},\frac{7}{4},\frac{7}{5}[/tex]

     LCM of 4,3,5 = 60

   [tex]\frac{135}{60} , \frac{80}{60} ,\frac{100}{60},\frac{105}{60},\frac{84}{60}[/tex]

Now sort them.

[tex]\frac{80}{60} , \frac{84}{60} ,\frac{100}{60},\frac{105}{60},\frac{135}{60}[/tex]

4. [tex]\frac{17}{7} , \frac{23}{7} ,\frac{24}{5},\frac{17}{5},\frac{11}{35}[/tex]

LCM of 7,5,35 = 35

[tex]\frac{85}{35} , \frac{115}{35} ,\frac{168}{35},\frac{119}{35},\frac{11}{35}[/tex]

Now sort them.

[tex]\frac{11}{35} , \frac{85}{35} ,\frac{115}{35},\frac{119}{35},\frac{168}{35}[/tex]

Therefore the above fractions are sorted in ascending order.

To learn more about fractions, follow the link.

https://brainly.com/question/12693741

#SPJ1

Answer:

5

Step-by-step explanation:

We can set up an equation.
Let x be the number.

So 5x+5 would be equal to 30.

5x+5 = 30

Subtract 5 on both sides:
5x = 25

Divide by 5 on both sides:

x = 5

The quadratic binomial in discuss as described in the task content is; 3x² - 7.

It follows from the task content that the expression in discuss is a quadratic binomial. In essence, there are only 2 terms.

Therefore, the expression should takes the form; ax² + b.

However, since the leading coefficient, a is said to be 3 and the constant, b is said to be -7; we have that;

3x² - 7.

Ultimately, the quadratic binomial is; 3x² - 7.

Read more on quadratic binomial;

https://brainly.com/question/29478383

#SPJ1

The area covered by the circular spotlight is given as follows:

C. 153.86 square feet.

The area of a circle of radius r is given by π multiplied by the radius squared, as follows:

A = πr²

π can be rounded to 3.14, hence the equation for the area is given as follows:

A = 3.14r².

The radius is of 7 feet, hence the area is given as follows:

A = 3.14 x 7²

A = 153.86 square feet.

Meaning that option C is the correct option for this problem.

More can be learned about the area of a circle at https://brainly.com/question/15673093

#SPJ1

32.66 repeated :>))))))))))))))

Answer:

30.6666666667

Step-by-step explanation:

92÷3 = 30.6666666667

Answer: To project the population in 2020, we can use the linear trend line equation.

First, we need to find the equation of the line. Let's use the two given points, (2000, 220,000) and (2010, 252,000), to find the slope of the line:

slope = (252,000 - 220,000) / (2010 - 2000) = 32,000

Next, we can use the slope-intercept form of the line equation: y = mx + b, where m is the slope and b is the y-intercept.

Plug in the first point: 220,000 = 32,000 * 2000 + b

Solve for b: b = 220,000 - 32,000 * 2000 = -44,000,000

The equation of the line is: y = 32,000x - 44,000,000

Finally, we can use the equation of the line to project the population in 2020:

y = 32,000 * 2020 - 44,000,000 = 264,000

So, the projected population in 2020 is 264,000.

Step-by-step explanation:

Answer:

x=-5

I think this is right

Step-by-step explanation:

Check the picture below.

Answer:

f(0) = -3

Step-by-step explanation:

1. Insert f(0) into the function of f(x) = 3x-6

2. f(0) = 3 x 0 - 6

3. f(0) = 3 - 6 =  -3

Answer:

208 Cars will be brought back for major repairs.

Step-by-step explanation:

With the simple calculation of:

[tex]\frac{170}{1360}\frac{26}{x}[/tex]

We are solving for x.

We cross-multiply 1360 by 26.

35,360

Then divide that by 170.

which will get us the result of 208.

The values of h and k are given as follows:

A translation happens when either a figure or a function are moved horizontally or vertically.

The four translation rules for functions are given as follows:

The parent function for this problem is given as follows:

[tex]y = \sqrt[3]{x}[/tex]

Which makes the curve at the origin.

From the graph, the curve is made at point (1,-2), hence the translations are given as follows:

More can be learned about translations at brainly.com/question/28174785

#SPJ1

Answer:

$80

Step-by-step explanation:

The probability of guessing the top 3 horses in order in a field of 20 horses in the Kentucky derby is, Very low value approximately 0.000145

Probability is a mathematical term, which can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event. The possibility that an event will occur is measured by probability.

Probability of Event = Favorable Outcomes/Total Outcomes = X/n

Given that,

There are total 20 horses,

The probability of guessing the top 3 horses in order = ?

The probability of guessing the top 3 horses in order in a field of 20 horses in the Kentucky Derby would be 1 in 20 x 19 x 18 = 6840.

This means that the probability of guessing the top 3 horses correctly would be 1/6840 or approximately 0.000145.

It is a very low probability and requires a lot of knowledge, research, and luck to correctly guess the top 3 horses in order.

To know more about Probability check:

https://brainly.com/question/30034780

#SPJ1

The set of polynomials over F is the set of all possible polynomials with coefficients from F, which includes all polynomials with degree up to the size of F.

A polynomial over a finite field is a mathematical expression of the form

[tex]P(x) = a_0 + a_1x + a_2x^2 + ... + a_nx^n[/tex],

where the coefficients a_i are elements of a finite field F. Therefore, the set of polynomials over a finite field F is the set of all possible polynomials with coefficients from F. For example, if F is the field with two elements {0, 1}, then the set of polynomials over F is [tex]{0, 1, x, x + 1, x^2, x^2 + 1, ...}[/tex]. As another example, if F is the field with three elements {0, 1, 2}, then the set of polynomials over F is [tex]{0, 1, 2, x, x + 1, x + 2, x^2, x^2 + 1, x^2 + 2, ...}[/tex]. In general, the set of polynomials over F is the set of all possible polynomials with coefficients from F, which includes all polynomials with degree up to the size of F.

Learn more about polynomials here:

https://brainly.com/question/11536910

#SPJ4

It will take the inattentive driver 5.22 seconds to come to a complete stop, assuming the car's deceleration remains constant.

An inattentive driver traveling 16.0 m/s when he notices a red light ahead and his car is capable of decelerating at a rate of [tex]3.06 m/s^2[/tex]. To determine how much time it will take for the car to come to a complete stop, we can use the following equation of motion:

v = v0 + at

where v is the final velocity (in this case, 0 m/s), v0 is the initial velocity (16.0 m/s), a is the acceleration (negative, because the car is slowing down), and t is the time.

Rearranging and solving for t, we get:

t = -v0 / a

t = -16.0 / (-3.06)

t = 5.22 seconds

So, it will take the inattentive driver 5.22 seconds to come to a complete stop, assuming the car's deceleration remains constant. This time can be used to determine the minimum distance the driver needs to maintain between himself and the vehicle in front of him to avoid a collision.

Learn more about velocity :

https://brainly.com/question/18084516

#SPJ4

Answer:

y=1/5x+10

Step-by-step explanation:

Answer:

tan60 = [tex]\frac{x}{6}[/tex]

      x = 6 x tan60

         = 10.4 ( cor to 3 significant figures)

cos60 = [tex]\frac{6}{y}[/tex]

        y = [tex]\frac{6}{cos60}[/tex]

           = 12

Reliability refers to the consistency of measures, whereas validity refers to the truthfulness of a measurement.

The size, capacity, or amount of something determined by measurement. Use equal amounts of ingredients. Something used for measurement (such as a ruler or cup). A unit used to measure. A foot is a measure of length. 

Statistics is a science concerned with developing and studying methods for  measure, collecting, analyzing, interpreting, and presenting empirical data. 

Statistics is the branch of mathematics for collecting, analyzing and interpreting data. Statistics can be used to predict the future, determine the likelihood of certain events occurring, and answer research questions. 

To learn more about measure, visit the link below

https://brainly.com/question/4725561

#SPJ4

Answer:

Step-by-step explanation:

Similar

Answer:

The Pythagorean Theorem states that, for a right triangle, the sum of the squares of the lengths of the two legs is equal to the square of the length of the hypotenuse. Therefore, if we have a right triangle with angles A, B, and C, then:

$$A^2 + B^2 = C^2$$

Now, let's consider a triangle with angles of 75°, 45°, and 30°. We know that the sum of the angles must equal 180°, so these three angles add up to 180°.

We can now plug in the angles into the formula above and solve for the hypotenuse C:

$$(45^2) + (30^2) = C^2$$

$$2025 = C^2$$

$$\sqrt{2025} = C$$

Therefore, the length of the hypotenuse C is 45 units.

Now, let's look at the cosine of angle A, which is 75°. By definition, the cosine of an angle is equal to the length of the adjacent side divided by the length of the hypotenuse. Therefore, for this triangle:

$$\cos 75° = \frac{\text{Adjacent side}}{\text{Hypotenuse}} = \frac{\text{Adjacent side}}{45}$$

We can now find the length of the adjacent side by subtracting the length of the opposite side from the hypotenuse:

$$\text{Adjacent side} = 45 - \text{Opposite side}$$

The length of the opposite side is equal to the length of the other leg, which is 30 units in this case. Therefore, the length of the adjacent side is 15 units.

Putting this all together, we can now solve for the cosine of 75°:

$$\cos 75° = \frac{15}{45} = \frac{\sqrt{2} (\sqrt{3}-1)}{4}$$

Therefore, cos 75° = √2 (√3-1)÷4.

The required percent​ decrease from 20 to 16 is given as 20%.

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here,
To find the percent decrease, we can use the formula:

Percent Decrease = (original quantity - new quantity) / original quantity * 100%

Plugging in the values:

Percent Decrease = (20 - 16) / 20 * 100%

= 4 / 20 * 100%

= 20%

So, the percent decrease is 20%.

Learn more about percentages here:

brainly.com/question/13450942

#SPJ1

Answer: THE ANSWER IS 18/42 

Step-by-step explanation:

The statistical test to be chosen depends on the nature of the data and the research question being answered. There are several statistical tests available, each with different assumptions and purposes.

A statistical test is a method used to evaluate data and make inferences about a population based on a sample of the population. The purpose of a statistical test is to determine if the results of an experiment or survey are statistically significant, which means that they are unlikely to have occurred by chance. Statistical tests use mathematical models to determine the likelihood of an event occurring and provide a level of confidence in the results.

Here are some common statistical tests and when they might be used:

T-test: A t-test is used to compare the means of two groups to determine if there is a significant difference between them. This test is often used in experiments where one group is treated differently from another.

ANOVA: ANOVA (Analysis of Variance) is used to compare the means of three or more groups to determine if there is a significant difference between them.

Chi-square test: A chi-square test is used to determine if there is a significant relationship between two categorical variables.

Linear Regression: Linear regression is used to study the relationship between a dependent variable and one or more independent variables.

Logistic Regression: Logistic regression is used to predict a binary outcome based on one or more independent variables.

It is important to choose the right statistical test to ensure that the results are meaningful and accurate. The choice of the test depends on the research question, the nature of the data, and the assumptions of the test. It is advisable to consult with a statistician to determine the appropriate test for a given situation.

To know more about regression visit:

https://brainly.com/question/13327687

#SPJ4

a) The sets A, B and D form a partition of the real numbers, as each real number is present in exactly one of of these sets.

b) The sets B, D and E do not form a partition of the real numbers, as the element x = -2 belongs to both sets D and E.

The conditions for the partition of a set are given as follows:

More can be learned about partitions of a set at https://brainly.com/question/29495953

#SPJ1

Answer: The actual area of the living room floor is 11 feet * 18.9 feet = 208.9 square feet. The estimated area of the living room floor is 12 feet * 20 feet = 240 square feet.

The difference in cost between the flooring to cover the actual area and the flooring to cover the estimated area of the living room floor is 240 square feet - 208.9 square feet = 31.1 square feet.

Therefore, the approximate difference in cost is 31.1 square feet * $8 per square foot = $248.80, which is closest to option (D) $250.

Step-by-step explanation:

Answer:

x = 11

Step-by-step explanation:

both the petagons are similar so the sum of their sides will be same

i.e.

sum of ABCDE = sum of JKLMN

ABCDE = sum of all the five sides = 6+2+2+3+3 = 16

thus,

sum of JKLMN = 16

16 = x+1+1+1.5+1.5

16 = x+5

x = 16-5 = 11

A coordinate that is a solution to the first equation but not a solution to the system of equations is (3, 1.5).

A system of linear equations consists of two or more equations made up of two or more variables such that all equations in the system are considered simultaneously. The solution to a system of linear equations in two variables is any ordered pair that satisfies each equation independently.

a) Given that, the graph shows the equations y= - 1/2x+3 ------(i) and y=2x-2 ------(ii).

From the graph, the solution is (2, 2)

b) Put x=1 in equation (i), we get

y= -1/2(1)+3

y= 2.5

Put x=2 in equation (i), we get

y= -1/2(2)+3

y= 2

Put x=3 in equation (i), we get

y= -1/2(2)+3

y= -1/2 (3)+3

y= -1.5+3

y= 1.5

So, a coordinate that is a solution to the first equation is (3, 1.5)

Therefore, a coordinate that is a solution to the first equation but not a solution to the system of equations is (3, 1.5).

To learn more about the linear system of an equations visit:

https://brainly.com/question/27664510.

#SPJ1

Answer:

Step-by-step explanation:

You want the slope-intercept form equation for the tangent line at point (π/6, 1) on the curve y = 2·sin(x).

The slope of the line at the point of tangency is the derivative of the curve at that point:

  y' = 2cos(x) = 2·cos(π/6) = 2(√3/2)

  m = √3 . . . . . approximately 1.7321

Solving the line's equation for b, we have ...

  y = mx +b

  b = y -mx = 1 -(√3)(π/6)

  b = 1 -π√3/6 . . . . . approximately 0.0931

The equation of the line is ...

  y = mx +b

  y = (√3)x +1 -(π√3)/6

Answer:

Add 5 +4 × 6 ÷ 3 - 7 + 3and you will get 14 and that is your answer