An astronomer studying a particular object in space finds that the object emits light only in specific, narrow emission lines. The correct conclusion is that this object A. is made up of a hot, dense gas. B. is made up of a hot, dense gas surrounded by a rarefied gas. C. cannot consist of gases but must be a solid object. D. is made up of a hot, low-density gas

Answer:

x = -60

Step-by-step explanation:

Given the equation:

[tex] \displaystyle{0.1x - 5 = - 11}[/tex]

Add both sides by 5

[tex] \displaystyle{0.1x - 5 + 5= - 11 + 5} \\ \\ \displaystyle{0.1x = - 6}[/tex]

Multiply both sides by 10 to get rid of the decimal

[tex] \displaystyle{0.1x \times 10 = - 6 \times 10} \\ \\ \displaystyle{x= - 60}[/tex]

Therefore, x = -60

Answer:

Step-by-step explanation:

0.1x − 5 = −11

0.1x = -11 + 5

0.1x = -6          multiply by 10 both sides

x = -60

--------------------------

0.1 x (- 60) - 5 = -11

-6 - 5 = -11

-11 = -11

Answer:

7/10

Step-by-step explanation:

How do you add a fraction?

First you have to check if they have common denominator. If so, add the numerators and keep the denominator. If Not, you have to find common denominator before added. After that,  check if your fraction need to be simplify.

Solve:

Least common multiplier of 10 and 5 is 10

[tex]\frac{3}{10}+\frac{2}{5}[/tex]

Since [tex]\frac{3}{10}[/tex] already have a denominator of 10 we keep it.

[tex]\frac{2}{5}=[/tex] [tex]\frac{2\times2}{5\times2}[/tex] [tex]=\frac{4}{10}[/tex]

Now we have;

[tex]\frac{3}{10}+\frac{4}{10}[/tex]

Apply fraction Rule which is; [tex]\frac{a}{c}+\frac{b}{c}=\frac{a+b}{c}[/tex]

[tex]=\frac{3+4}{10}[/tex]

3 + 4 = 7

[tex]=\frac{7}{10}[/tex]

Hence, [tex]\frac{3}{10}+\frac{2}{5}=\frac{7}{10}[/tex]

RevyBreeze

Acute angles are the angles that measure less than 90 degrees. Right angles measure 90 degrees and Obtuse angles measure more than 90 degrees.

By adding the squares of the triangle's two smaller sides and comparing the result to the square of the largest side, you can determine whether the triangle is acute, right, or obtuse. The triangle is acute because this sum is higher.

A triangle is said to be acute if the squares of its two shorter sides added together exceed those of its longest side. A triangle is considered obtuse if the sum of the squares of its two shorter sides is less than the square of its longest side.

An overview was given as your information is incomplete.

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Answer:

M = (36.5-8)/5

[M = 5.7 miles/day]

Step-by-step explanation:

The goal is 36.5 miles.  The remaining miles needed to achieve this goal is reduced by the miles already ridden, 8 miles.

(36.5 - 8) = 28.5 miles remaining.

We are asked to find a value for M, which is the average number of miles Ian would have to ride to reach his goal.  By average, we can assume it is the average miles/days remaining.  The days remaining are 5, so we have:

(28.5 miles remaining)/5 days = 5.7 miles/day

An equation for M using these steps would be:

M = (36.5-8)/5

The measure of the interior non-adjacent angle as required in the task content is; 95°.

Recall; It follows from the triangle exterior angle theorem that the measure of exterior angle of a triangle is equal to the sum of the two opposite interiors angles.

On this note, if the sculpture’s opposite interior angle is 32 less than the interior non-adjacent angle, the sum of the two angle measures is therefore;

x + x - 32.

where, x is the measure of the interior non-adjacent angle.

Hence, x + x - 32 = 158

2x = 158 + 32

2x = 190

x = 95°.

Ultimately, the measure of the interior non-adjacent angle is; 95°.

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Length of edge of cube = 6.24 unit

A cube is a three-dimensional object that has 6 congruent square faces. Dimensions of all the 6 square faces of the cube are the same. A cube is sometimes also referred to as a regular hexahedron or as a square prism.

Given,

volume of cube = 27×9 cubic units

Length of edge of cube = ∛(27×9)

                                        = ∛243

                                        = 6.24 unit

Hence, 6.24 unit is length of edge of cube.

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The area of the said triangle is 10 cm²

Here we have been given the right-angled triangle with base 5 cm and altitude 4 cm.

To find the area of a triangle we can either use Heron's formula or the other formula where area of a triangle = 1/2 X base X height

Since we have been given the base and the height we need to use the latter.

Hence area of the said triangle will be

1/2 X 5 X 4 cm²

= 10 cm²

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Only (i), (ii), (iv) and (v) are Pythagorean triplets. A triplet (a, b, c) is called Pythagorean if the sum of the squares of the two smallest numbers is equal to the square of the biggest number.

Pythagoras, Gauss, Edison, Hawking. The following are the most noted discoveries of each.

Pythagoras, 500 B.C. School Of Mathematics and Pythagorean theorem.Edison, Year 1879 - Invention of incandescent light bulb.Gauss, Year 1801 - Therom of Alegbraic Solution. Stephen Hawking Year1980 - Studies in cosmology particularly contributing to the context of black holes.

you can check by taking largest side square

and adding square of rest two sides

17^2= 15^2+ 8^2

82^2= 18^2+80^2

26^2= 24^2+10^2

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The replacement or substitution approach has the advantage of providing the precise values for the variables (x and y), which correspond to the site of intersection.

The algebraic approach to solving simultaneous linear equations is known as substitution method. The value of one variable from one equation is substituted in the second equation in this procedure, as the name implies.

This makes it easier to solve by combining two linear equations into one equation with a single variable. Learn about the graphical approach and the algebraic method before beginning to solve the linear equations using the substitution method.

By changing the value of another variable in an equation, the variable can be eliminated. Thus, the elimination by substitution method is the name given to this technique.

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The values of x and y are -1 and 4 respectively.

The substitution method is the algebraic method to solve simultaneous linear equations. As the word says, in this method, the value of one variable from one equation is substituted in the other equation.

Given are two equations, -2x+3y=14 and x+2y=7

Solving equations by using substitution method,

-2x+3y=14..........(i)

x+2y=7

x = 7-2y.......(ii)

Using eq(ii) in eq(i)

-2(7-2y) + 3y = 14

-14+4y+3y = 14

7y = 28

y = 4

Put y = 4 in eq(ii)

x = 7-2(4)

x = -1

Hence, the values of x and y are -1 and 4 respectively.

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Answer:

Point C

Step-by-step explanation:

Lines m and t are on the same plane

We can see that they intersect at Point C

on solving 6th term in the binomial expansion of (4x + 1)^8 in simplest form is 3584.

A binomial is an algebraic expression with two terms. For example, a + b, x - y, etc are binomials. We have a set of algebraic identities to find the expansion when a binomial is raised to exponents 2 and 3.

A polynomial with just terms is a binomial. An illustration of a binomial is x + 2, where x and 2 are two distinct words. Additionally, in this case, x has a coefficient of 1, an exponent of 1, and a constant of 2. As a result, a binomial is a two-term algebraic statement that comprises a constant, exponents, a variable, and a coefficient.

we know ,

So the 6th term in the equation

is ,8c5 -4x^8-5 = 8c34x^3 is , = 3584

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The solution is the point where the two lines intersect i.e. (-1,-7). The graph for the given system of equations is attached below wherein the blue line represents y=2x-5 and the green line represents y=-x-8.

What is system of equation?

A set or group of equations that are solved collectively is referred to as a system of equations. Both algebraic and visual solutions are possible for these equations. The intersection of two lines represents the system of equations' solution.

For solving the equations graphically, we need to find points for plotting

So, for y = 2x-5,

The y-intercept is -5, so we need to place a point on the graph at (0,-5).  For the another point, put x=1, we get y= -3. So we need to place another point at (1,-3).

Similarly for y = -x-8,

The y-intercept is -8, so we need to place a point on the graph at (0,-8).  For the another point, put x=1, we get y= -9. So we need to place another point at (1,-9).

The solution is the point where the two lines intersect.

When the two lines intersect,

2x-5=-x-8

3x=-3

x=-1

So, y=-7

Hence, the two lines intersect at (-1,-7).

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Chapters on progressions, quadratic equations, linear inequalities, the binomial theorem, permutations and combinations .

A quadratic polynomial in a single variable is x ax2+bx+c=0, which is a quadratic equation. a 0. The fact that this polynomial is of second order guarantees that it has at least one solution according to the Fundamental Theorem of Algebra. Solutions could be straightforward or difficult. A quadratic equation is one that has four variables. This suggests that at least one word in it has to be squared. One of the common formulas for solving quadratic equations is "ax2 + bx + c = 0." where the undefined variable "X" is represented by the numerical coefficients or constants a, b, and c.

given

Chapters on progressions, quadratic equations, linear inequalities, the binomial theorem, permutations and combinations, and mathematical induction can be found in class eleven algebra textbooks.

Students might improve their exam preparation by working through sample papers.

Attempt to answer the test questions from the prior year. Learning about the question format and scoring system will be beneficial.

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The additive inverse of 8 /- 15 is -8 /+ 15. This means that the two numbers add up to 0 when combined.

The additive inverse of 8 /- 15 is -8 /+ 15. This means that the two numbers add up to 0 when combined. To find the additive inverse of 8 /- 15, simply change the sign of the number from negative to positive or from positive to negative. In this case, the sign of 15 needs to be changed from negative to positive, giving us 8 /+ 15. This means that when 8 /- 15 is added to 8 /+ 15, the result is 0. The concept of additive inverse is important in mathematics as it helps us to solve equations and understand the properties of numbers. Additive inverse is also referred to as the opposite of a number, as it is the number that needs to be added to the original number to get 0. Therefore, the additive inverse of 8 /- 15 is -8 /+ 15.

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The event with the largest probability is rolling a number higher than 2, so the correct option is B.

First, the fact that a 2 was rolled before does not affect the next rolls of the dice, so that information is extra.

Now we just need to see which option has the largest probability.

A) There are only one number lower than 2, then the probability of this event is p = 1/6

B) There are 3 numbers higher than 2, then the probability is p = 3/6 = 1/2

C) The probability of get another 2 is 1/6

We can see that the event with the largest probability is B, so that one is the most likely to occur.

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Answer:

a^m + a^n = a^m+n

Step-by-step explanation:

This is true for any value of a and n except 0.

Answer: Yes, after 7 weeks, they will have the same amount of money

Step-by-step explanation: So let’s say Joyce will be equation 1, so it would be - T = 13 + 6x, where T represents the total money, and x represents the number of weeks. And let’s say Enrique will be equation 2, which will be - T = 80 - 5x, where once again, T represents the total money, and x represents the number of weeks.

So, let’s start going off numbers, we will start at 5 weeks, when we put that in, Joyce will have $43 and Enrique will have $65, so we know it will be more than 5 weeks, so let’s try 8 weeks, Joyce will have $61 and Enrique will have $40, so it’s below 8, so how about we try 7, at 7 weeks, Joyce will have $55, and Enrique will have $55 too. So this means, after 7 weeks, Joyce and Enrique will have the same amount of money

Answer:

2 over 1

Step-by-step explanation:

I'm not really sure what you mean in the question but I've substituted the values in

Answer:

12

Step-by-step explanation:

The graph of the inequality: 3x + y > 7

Can be seen in the image below.

We want to see which graph represents the inequality:

3x + y > 7

We can rewrite the inequality in slope-intercept form as:

y > -3x + 7

So we just need to graph the line:

y = -3x + 7

With a dashed line, and then shade all the region above the line.

To graph the line, you need to find two points that lie on the line.

if we evaluate the line in x = 0 we wll get:

y = -3*0 + 7

y = 7

if x = 1

y = -3*1 + 7

y = -4

Then we have the points (0, -7) and (1, -4), now we can graph these two points and connect them with a dashed line, then shade the region above.

The graph of the inequality is the one below.

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Three fundamental ideas provide the foundation for all basic geometry notions. The three are the plane, line, and point.

The father of geometry, Euclid was a brilliant mathematician. Learn more about Euclid and the history of some of the math ideas we use today to see how important they have become.

The terms "ge" and "metria," which both imply "measuring," are the origins of geometry. For more than 2000 years, the Greeks' method of approaching geometry has served as the foundation for geometry.

The study of various mathematical or actual-world forms, figures, and sizes is known as Geometry. We learn about various angles, transformations, and similarities between the forms in geometry. The point, line, and plane are the main building blocks of geometry.

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Three basic ideas form the basis of all basic geometry concepts. The three are planes, lines, and points.

Euclid, the father of geometry, was a brilliant mathematician. Learn about the history of Euclid and some of the mathematical ideas we use today, and see how important they have become. The terms ``ge'' and ``metria'', meaning ``measure,'' are of geometric origin. For over 2000 years, the Greek approach to geometry has served as the foundation of geometry.

Geometry is the study of various mathematical or actual forms, figures, and sizes. In geometry, you will discover the concepts of points, lines, planes, angles, parallel lines, triangles, similarity, trigonometry, quadrilaterals, transformations, circles, and area.

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Answer:

24

Step-by-step explanation:

120 x 0.20 = 24

Answer:

------------------------------

Solve in below steps, using log and exponent rules:

A rectangle is a closed 2-D shape with four sides, four corners, and four right angles (90°).

Four sides, four corners, and four 90° right angles make up the closed, 2-D shape of a rectangle. A rectangle has parallel, equal sides on either side.

A rectangle has four vertices since it has four sides, four angles, and four corners. The intersection of two sides forms the "vertices" of a polygon. They are corners, to put it another way.

Rectangles' basic characteristics include:

Four-sided shapes include rectangles.

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Answer: 20%

Step-by-step explanation: You can evenly divide 20 by 5, which is four, which makes four 20% of 20. You can subtract 4 from 20 to get 16 to prove this, and keep going all the way back to 0 5 times.

In order to respond to the query ,of bar graph we must first comprehend what a compound Tim received 4 emails on Thursday and 8 SMS on Monday, making up 0.52 of all communications.

A blended bar chart is used to display the rates of two connected sets of data. In this investigation, two forms of data—emails and emails used, but they are both grouped together under the term "messages" and are shown as vertical bars in the graph.

Here,

14+16+14+15+14=73 messages in total.

A total of 38 emails were sent: 6 + 10 + 10 + 4 + 8

Email to message ratio is 38/73, or 0.52.

Emails therefore made up 0.52 of the messages.

Tim received 4 emails on Thursday, 8 texts on Monday, and 0.52 of the messages were emails, as shown by an examination of the composite bar chart that we used to come up with the answers to the three questions.

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Answer:

Taylor

Step-by-step explanation:

2.5km in 17 mins time 2=5km in 34mins 3km in 20 mins times 2=6km in 40 mins