Which choice correctly expresses the number below in scientific notation? 0.000611

D. 6.11 * 10 ^ - 5

C. 6.11 * 10 ^ - 3

OE. 6.11 * 10 ^ - 4

OF. 611 * 10 ^ - 6

B. 611 * 10 ^ - 4

A. 61.1 * 10 ^ - 5

0.000611

Answer:

Step-by-step explanation:

The triangle on the right side fits into the missing part of the left side.

So what I did is (5+4) and times 10 = 90m.

P.s:If I'm wrong I'm sorry.

Step-by-step explanation:

well, it is a rectangle, where an isoceles right-angled triangle is cut off in the top left corner, but that triangle is added to the top right corner.

so, the area is the same as the regular rectangle.

we know, the area of a rectangle is

length × width

now, we know the length for sure (10 m).

what is the width ?

we know the part of the width until the triangle is 5 m.

and we know the leg length of the triangle is 4 m.

the width is simply the sum of the basic part and the leg length

5 + 4 = 9 m

so the area of all this is

10 × 9 = 90 m²

The ratio of the radius of Circle A to the radius of Circle B is given as follows:

0.6.

The radius of a circle represents the distance between the circle of the center to any point on the circumference of the circle.

From the circles given on the image presented at the end of the answer, the radius of each circle is given as follows:

Hence the ratio of the radius of circle A to the radius of circle B is calculated as follows:

rA/rB

Replacing the numeric values for each radius, the ratio is calculated as follows:

3/5 = 0.6.

The circles are given by the image presented at the end of the answer.

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Answer:

Generally, figure the average person takes up 18 inches of space on a bleacher seat. That is the industry standard. Therefore, for 4-row bleachers, consider these lengths and seating capacity. 7.5 feet – 20 seats (90 inches divided by 18 inches equals 5 seats, times 4 rows equals 20 seats).

Step-by-step explanation:

The diagram of AOCG is given in the attached image.

AOCG is a rectangle.

A quadrilateral with parallel sides that are equal to one another and four equal vertices is known as a rectangle.

Given:

AOCG is a parallelogram.

And GC = GA = 5 centimeters.

The opposite sides of the parallelogram are equal and parallel.

So,

AO = OC = 5 centimeters.

And ∠CGA = 90°.

The diagram of AOCG is given in the attached image.

All the parallel sides are equal to one another.

And ∠CGA = 90°.

So, AOCG is a rectangle.

Therefore, AOCG is a rectangle and the image is given

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They intersect in the 2nd quadrant. Only one answer choice (–0.3, 2.1)

Horizontal axis represents a variable x and the vertical axis represents a variable y, a y-intercept or vertical intercept is a point where the graph of a function or relation intersects the y-axis of the coordinate system.

The graph shows you the lines all differ in their y-intercepts. This means you can identify the y-intercepts of the equations of interest, and you will know which lines to look at.

The y-intercept is found by setting x=0 and solving for y:

x +5y = 10

 0 + 5y = 10

 y = 10/5 = 2

3x +y = 1

 3·0 +y = 1

 y = 1

The two lines of interest are the ones that have y-intercepts of 2 (pink) and 1 (blue). They intersect in the 2nd quadrant. Only one answer choice can apply: (–0.3, 2.1)

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Answer:

A = 12.5663706 yd2

Step-by-step explanation:

If the exchange rate is 1 U.S. dollar to 81 Japanese yen, to purchase something that costs 50 dollars, you would have to spend 50 x 81 = 4050 Japanese yen.

Answer: You would have to spend 4050 yen to buy something that costs 50 dollars.

Step-by-step explanation: Since we already know the amount of yen that's equal to a dollar, all we have to do is multiply that number by the amount of dollars being spent.

This gives us: 81 * 50 = 4050. You would have to spend 4050 yen to buy something that costs 50 dollars.

Answer:

Angle A is 66°

Step-by-step explanation:

< b  is equal to 57 because the opposite side lengths are equal.

The sum of the interior angles of a triangle is 180

180 - 57 - 57 = 66

Answer:

see explanation

Step-by-step explanation:

the denominator of a rational expression cannot be zero as this would make the expression undefined.

equating the denominator to zero and solving gives the value/s that x cannot be.

1

4x = 0 ⇒ x = 0

x = 0 ← is an excluded value in the domain

2

8x + 3 = 0

8x = - 3

x = - [tex]\frac{3}{8}[/tex]

x = - [tex]\frac{3}{8}[/tex] ← is an excluded value in the domain

3

2 - 10x = 0

- 10x = - 2

x = [tex]\frac{-2}{-10}[/tex] = [tex]\frac{1}{5}[/tex]

x = [tex]\frac{1}{5}[/tex] ← is an excluded value in the domain

4

x + 12 = 0

x = - 12

x = - 12 ← is an excluded value in the domain

5

(2x - 1)(x + 6) = 0

equate each factor to zero and solve for x

2x - 1 = 0

2x = 1

x = [tex]\frac{1}{2}[/tex]

x + 6 = 0

x = - 6

x = - 6 and x = [tex]\frac{1}{2}[/tex] ← are excluded values in the domain

Answer:

Step-by-step explanation:

Solving by factoring is a strategy used to solve quadratic in form polynomials, which are equations that can be written in the form of ax^2 + bx + c = 0. The goal of this strategy is to factor the equation into two binomials that are equal to zero. Once the equation is factored, we can use the zero product property to set each binomial equal to zero and solve for the roots or solutions of the equation.

The process of factoring begins by finding the greatest common factor of all the terms in the equation. Once the GCF is identified, it can be factored out of the equation. Next, we look for two binomials that multiply to give the remaining terms in the equation and add to give the remaining constant term.

For example, consider the equation: 3x^2 + 6x - 9 = 0.

To factor this equation, we first find the GCF of all the terms, which is 3. We can factor out 3 from all the terms, giving us: 3(x^2 + 2x - 3) = 0.

Now, we look for two binomials that multiply to give x^2 + 2x - 3 and add to give -2. We can see that (x-3)(x+1) satisfies this condition.

By factoring the equation, we have now factored the polynomial into (x-3)(x+1) = 0. We can use the zero product property to set each binomial equal to zero and solve for the roots: x-3 = 0 and x+1 = 0. The solutions are x=3 and x=-1.

By using the factoring strategy, we were able to solve the quadratic in form polynomial 3x^2 + 6x - 9 = 0 and find the roots x=3 and x=-1. This strategy can be applied to any quadratic in form polynomial and is a useful tool in solving equations.

Answer:

1.72 inches

Step-by-step explanation:

= P=2s×b

= 32.7=2s×9.5

= 32.7=19s

= 32.7/19=19s/19

= s=1.72

The ratio of the areas of two similar polygons can be found by using the ratio of their perimeters or the ratio of similarity and squaring it which is true.

The polygon is a 2D geometry that has a finite number of sides. And all the sides of the polygon are straight lines connected to each other side by side.

Similar polygons are those whose perimeter ratios are identical to their respective scale factors. The common fraction of the sizes of two matching sides of two identical polygons is known as a scale factor.

The given statement is true.

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Answer:

Step-by-step explanation:

Do you mean "isn't complete or not in final form?"

If it does, it is because the equation is not yet simplified. You can still change its structure by distributing the negative sign to the right parenthsis to make it a whole polynomial.

[tex](2x^{2} + 5) - (4x-1)\\2x^{2} + 5 - 4x + 1\\2x^{2} - 4x + 6\\[/tex]or

[tex]2 (x^{2} - 2x + 3)[/tex]

Answer:

Step-by-step explanation:

Using the Law of Cosines, we can find the remaining angle measures of the triangle.

Angle D = cos-1[(25^2 - 8^2 - (25^2 * cos(131°)))/(-2*8*25)] = 20.5°

Angle E = cos-1[(8^2 - 25^2 - (8^2 * cos(131°)))/(-2*25*8)] = 61.4°

Angle F = 180° - (20.5° + 61.4°) = 98.1°

Round to the nearest tenth:

Angle D = 20.5°

Angle E = 61.4°

Angle F = 98.1°

Answer: -81a^2 + 27a + 10

Step-by-step explanation: We can do this question by using FOIL (first, outer, inner, last)

(-9a-2)(9a-5)

First, multiply the first two terms in the parentheses

-9a times 9a is -81a^2

Second, multiply the outer terms

-9a times -5 is 45a

Third, multiply the inner terms

-2 times 9a is -18a

And lastly, multiply the last terms

-2 times -5 is 10

After doing this we end up with -81a^2 + 45a - 18a + 10 = -81a^2 + 27a + 10

The cost of the 20 papers will be $200.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Ayacka and Erica sells newspapers on weekends to earn extra money for every 9 newspapers the cost is $90, Erica sells 20 newspapers.

The cost of 20 news papers will be calculated as,

Cost = ( 90 x 20 ) / 9

Cost = $200

The complete question is given below.

Ayacka and Erica sells newspapers on weekends to earn extra money for every 9 newspapers the cost is $90, Erica sells 20 newspapers. What is the cost?

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Answer:

what is this i do not know sorry so no 30 points right

The expression a³ - b³ is not a feasible mathematical operation.

The index form of a number is described as that number that is written in the form of an exponential expression, or single number having another number or variable as its power.

It is a mathematical method of writing numbers that are too large or too small in a more convenient form.

Other names for index forms are standard forms and scientific notation.

Some of the rules for the addition, subtraction or multiplication of index forms are;

From the information given, we have that;

a³ - b³

From the rules given, this is not mathematically feasible as the bases are not similar.

Hence, the expression is non-feasible

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Answer: The equation for the translation of x2 + y2 = 64 three units to the left and two units down is:

(x − 3)2 + (y − 2)2 = 64

Step-by-step explanation:

This is known as the standard equation of a circle centered at (3, 2) with a radius of 8.

When translating a shape, we need to change the center point of the shape. If we want to translate 3 units to the left and 2 units down, it means that we need to change the center point of the shape from the origin to (3, 2). This can be achieved by subtracting 3 from x and subtracting 2 from y in the equation of the circle. This results in (x - 3)2 + (y - 2)2 = 64, which is the equation for the translated circle.

Answer: (x - 3)^2 + (y - 2)^2 = 64.

Step-by-step explanation:

This is because to translate a point or a function in the x-axis by a certain value we need to add or subtract the value from the x variable. To translate in the y-axis we need to add or subtract the value from the y variable. In this case, we are translating it three units to the left, so we subtract 3 from x, and two units down so we subtract 2 from y.

The number of quarters Dalton has is 5.

Dalton has $3.05 in dimes and quarters. He has 13 more dimes than quarters. Therefore, the number of quarters he has can be calculated as follows:

Hence, using system of equation,

Therefore,

let

x = number of quarters

y = number of dimes

y = x + 13

0.25x + 0.1y = 3.05

using substitution method,

0.25x + 0.1(x + 13) = 3.05

0.25x + 0.1x + 1.3  = 3.05

0.35x = 3.05 - 1.3

0.35x = 1.75

x = 1.75 / 0.35

x = 5

Therefore,

number of quarters = 5

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Answer:

145

Step-by-step explanation:

We have the equation 5x+20 for the line of best fit

Let x = 25

y = 5*25+20

  = 125 + 20

  = 145

The score should be 145 when he plays for 25 minutes

Answer:

Step-by-step explanation:

Convert a liter or liters what how ever many the question says to fl oz. 1 liter= 33.814, so if you need to minus 2 cups then just minus 16 fl oz, from 33.814, or the given amount in the question.

Answer:

Step-by-step explanation:

1. convert fl oz to liters using a conversion factor

2. 1 liter = 33.814 fl oz approx

3. you must divide the # of fl oz by 33.814

4. For example, if you wanted to subtract 20 fl oz from 3 liters, you would first convert the 20 fl oz to liters: 20 fl oz/33.814 = 2.406

5. Then you would subtract the converted fl oz from the liters: 3 liters-0.594 liters= 2.406 liters

20 fl oz = 0.594 liters, and 3 liters minus 0.594 liters equals 2.406 liters

Hope this helps!

Answer: y = 18

Sentence: The value of y that makes T Parallel to U is 18.

Step-by-step explanation:

We are given 3 expressions:

We know that since the angle (7x) is on the same line as the angle (3x + 36), we can therefore determine that they correspond to each other. I referred an image to help demonstrate this concept. So since they correspond to each other, that means they have the same value (meaning they are equal to each other).

We can set both expressions equal to each other.

7x = 3x + 36

And solve:

7x = 3x + 36

-3x   -3x

4x = 36

/4     /4

x = 9

now we know the value of x, we can plug it into one of the equations. We  can plug it in to 3x + 36 to help with the process in solving y.

3(9) + 36 = 63 degrees

Since 6y + 9 and 3x + 36 (63 degrees) are supplementary angles, we can subtract 180 from 63.

180 - 63 = 117

now we know that 117 degrees = 6y + 9 BUT!, we need to solve for y, because that's what the question is asking for.

So lets solve for y:

117 = 6y + 9

-9            -9

108 = 6y

/6       /6

y = 18

Answer:

23.75483

Step-by-step explanation:

I used a calculator lol

Answer:

-4

Step-by-step explanation:

[tex] 6^5 \times 6^n = 6^1 [/tex]

When you multiply powers with the same bases, add the exponents.

[tex] 6^{5 + n} = 6^1 [/tex]

[tex] 5 + n = 1 [/tex]

[tex] n = -4 [/tex]

Answer: -4

Tom earns $100 in 5 days if he makes $5622 in 281.10 day, in the given arithmetic problem.

A branch of mathematics that deals with the properties of numbers is known as arithmetic, which uses the four operations. A branch of mathematics that deals with the properties of numbers is known as arithmetic, which uses the four operations.

The four operations are addition, subtraction, multiplication, and division. The guidelines for each procedure are very specific.

One of the fundamental principles of addition and subtraction is that while addition increases a number's overall value, subtraction decreases it.

Given that he earn $5622 in 281.10 day

In 1 day he earns = 5622/281.10

                             = $20

So in 5 days he earns = 5 × $20

                                     = $100

Thus, Tom earn $100 in 5 days if he makes $5622 in 281.10 day, in the given arithmetic problem.

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Full question:

Tom makes ​$5622 in 281.10 days. How much does he make in 5 ​days?

Figures with more than 3 sides but with no pairs of parallel sides:

Figures with more than 3 sides and with one or more pairs of parallel sides, almost all even sided polygons:

Figures with one or more pairs of parallel sides:

Figures with less than 4 sides:

Figures with less than 4 sides and with at least two sides of equal length:

Figures with at least two sides of equal length:

Figures with at least one curved side:

Figures with at least one curved side and with at least one obtuse angle:

Figures with at least one obtuse angle (polygons with more than 4 sides will have obtuse angles)

Answer: To calculate the % confidence interval for the proportion of US adults who spend less than three hours watching TV on an average day, we can use the following formula:

p +/- z*(sqrt(p(1-p)/n))

Where:

p = proportion of US adults who spend less than three hours watching TV on an average day (0.42)

z = standard normal score for a given level of confidence (e.g. for a 95% confidence level, z = 1.96)

n = sample size (1031)

Plugging in the given values, we get:

0.42 +/- 1.96*(sqrt(0.42*(1-0.42)/1031))

Simplifying, we get:

0.42 +/- 0.0156

So the 95% confidence interval for the proportion of US adults who spend less than three hours watching TV on an average day is approximately (0.40,0.44)

So the answer is (0.40,0.44)

Step-by-step explanation:

Answer:255

Step-by-step explanation: