9. Raquel estimated 504,900,000,000 as 3 x 10^8. What error did she
make? Explain.

Answers

Answer 1

Answer:

5.049 x 10^11

She'd done the entire equation wrong

3 x 10^8 would be 300000000 when instead 10 should be to the power of 11 and 3 should be 5.049

Step-by-step explanation:

To rewrite something in scientific notation you have to group the numbers that aren't zero (5049) and convert it into a decimal (5.049)

(Decimals for scientific notations will ALWAYS have one number in the 1st digit, no matter what)

Then we see what we have to multiply our decimal to make it into our original number. We count the numbers in the decimal and the rest of our zeros (8+3=11)

5.049 x 10^11 = 504900000000


Related Questions

Which of the following is a binomial in y
(1) y² + √2
1
(2) y + +2
y
(3) √5 + √2y
(4) y√y+1

Answers

Answer:

Binomial polynomial means that no negetive power on the no

(1) y² + √2 is correct answer

I need help on my homework it's hard​

Answers

91
x 43
———-
273
364
+
————
3913

Answer:

3913

Step-by-step explanation:

Step:1 setup

set up your multiplication problem like this

   91

  43

X_______

Step:2 Multiply 1 x 3=3 Put 3 below the line and 0 as a reminder on top:

0

91

43

x_______

            3

Step 3:Multiply

3 x 9 = 27. Take 27 and add 0 from the previous step to get 27 Enter 27 the bottom:

91

43

X

----------

     273

step 4:Add 0 Enter a 0 at the bottom right as a place holder,because you now move over one digit:

91

43

X

_______

273

+       0

Step 5: Multiply

4 x 1 = 4. Put 4 below the line and 0 as a reminder on top:

0

91

43

x

________

          273

+            40

Step 6:Multiply

4 x 9 = 36 and add 0 from the previous step to get 36. Enter 36 at the bottom:

91

43

x

__________

             273

+          3640

Step 7: Add to get answer

Add up the bottom two numbers (273 + 3640 = 3913 to get the answer:

91

x   43

_________

            273

+          3640

____________

=  3913

If f(x)=-x and j(x)=f(x)+19 list the following attributes

f(x): Slope Y-intercept Zero J(x) Slope Y-intercept Zero

Answers

The slope of the functions f(x) and j(x) will be -1. And the y-intercept of the function j(x) will be 19.

What is a linear equation?

A relationship between two or more parameters that, when shown on a graph, produces a linear model. The degree of the variable will be one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

If f(x) = - x and j(x) = f(x) + 19

Then the function j(x) will be given as,

j(x) = f(x) + 19

j(x) = - x + 19

The slope of the functions f(x) and j(x) will be -1. And the y-intercept of the function j(x) will be 19.

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Find perimeter PERMITER NOT AREA

Answers

Answer:

perimeter = 38 units.

Step-by-step explanation:

30 + 7.85

= 37.85

≈ 38 units

Answer:

37.85 (Assuming you are supposed to estimate pi)

Step-by-step explanation:

First, add the easy stuff:

10+10+5+5=30

Then, find the circumference of the circle:

c = 2 π r

c = 2(5)π

c = 10π

Divide by 4:

10π/4 ≅ 7.85

7.85 + 30 = 37.85

help i don’t get it
answers pls

Answers

The value of x in the given right-angled triangle is 13.

What is the value of x?

A triangle is a polygon with three sides and three vertices. The sum of angles in a triangle is 180 degrees. A right triangle is a triangle in which one of its angles measure 90 degrees. The longest side of a right triangle is known as the hypotenuse.

180 = 39 + (3x + 12) + 90

Combine similar terms: 180 - 39 - 12 - 90 = 3x

Add similar terms together: 39 = 3x

Divide both sides of the equation by 3: x = 39/3

x = 13°

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HELP

What are the similarities and differences do you see between 3 and 4

For example:
Similar: both arithmetic/linear/common difference
Different: #1 is discrete #3 is continuous

WILL GIVE BRAIN

Answers

measures: _ , and .

Determine whether the relation is a function (explanation please)

Answers

A function is defined as a relation where each input value is paired with exactly one output value. The input -1 has 2 outputs, thus the relation is not a function.

Subtract using the number line. −1−(−6) Enter your answer in the box.

Answers

Using the number line we get the value as 5 .

In basic mathematics, real numbers are shown as a graphic of a graduated straight line called a number line.

Every point on a number line is considered to correspond to a real number, and every real number is assumed to correspond to a point.The integers are typically shown as lines of specially chosen, evenly spaced dots. Even though the picture only shows the integers, as well as numbers that are in between the integers, the line contains all real numbers, going forever in both directions. When teaching fundamental addition and subtraction with negative numbers, it is widely used as a teaching technique.

Now as represented in the number line we subtract the numbers to get

−1−(−6) = 5

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100 points plus brainiest
The linear function f(x) = 0.5x + 80 represents the average test score in your math class, where x is the number of the test taken. The linear function g(x) represents the average test score in your science class, where x is the number of the test taken.


x g(x)
1 81
2 83
3 85


Part A: Determine the test average for your math class after completing test 2. (2 points)

Part B: Determine the test average for your science class after completing test 2. (2 points)

Part C: Which class had a higher average after completing test 4? Show work to support your answer. (6 points)

Answers

after using each and every details of science class and maths class given in the question

solution of

part a - f(2) = 81

part b - g(2) = 83

part c - Test average for maths class after test 2 is greater

WHAT ARE FUNCTIONS ?

Function is a mathematical phrase, rule, or law that establishes the relationship between an independent variable and a dependent variable (the dependent variable). Functions are used frequently in mathematics and are crucial for constructing physical links in the sciences.

CALCULATION

f(x) = 0.5x + 80

solving (A) f(2) = 0.5 * 2 + 80

      = 1  +  80

       = 81

solving (B) : g(2) =83 when x= 2

so :

g(2) = 83

solving (C) : which is greater f(2) or g(2)

in (a) and (b)

f(2) = 81

g(2) = 83

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Answer:

part a - f(2) = 81

part b - g(2) = 83

part c - average for maths class after test 2 is greater

Step-by-step explanation:

Got it right

which critical value is appropriate for a​ 99% confidence level where n​17, is​ unknown, and the population appears to be normally​ distributed? question content area bottom part 1 a. 2.567 b. 2.921 c. 2.898 d. 2.583

Answers

The critical value that is appropriate for a​ 99% confidence level where n​17, is​ unknown, and the population appears to be normally​ distributed is 2.921 (Option B).

What is the Critical Value in statistics?

A Critical value is the value of the test statistic that establishes the upper and lower boundaries of a confidence interval or the statistical significance threshold in a statistical test.

How did we arrive at the above conclusion?

We are given:

n=17, where n is the size of the set

df = n-1; (df means degree of freedom)

= 17-1

df = 16, at 99% confidence level.

Here we apply the t-test because the data is normally distributed.

∝ = 1-99% [Shere ∝ is the significance level)

= 0.01

∝/2 = 0.01/2

= 0.005

hence,


[tex]t_{\alpha /2} ,df[/tex]  = [tex]t_{0.005}[/tex], 16 = 2.921. this is derived using the T-Table.

The above leads us to conclude therefore that Option B is correct.

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Jerald is having drain issues at his home and decides to call a plumber. The plumber charges $70 to come to his house and $50 for every hour they work. If the plumber charges Jerald a total of $285, how many hours did the plumber work?

Write and solve an equation to determine the number of hours worked by the plumber.

50x − 70 = 285; x = 7.1 hours
50x + 70 = 285; x = 4.3 hours
70x − 50 = 285; x = 4.8 hours
70x + 50 = 285; x = 3.4 hours

Answers

Answer: B

Step-by-step explanation:

A  $70 is fixed, we have to add $50 each hour. So, it will be 70 + 50x. If he charged $285 overall, this means that 70 + 50x = 285

50x = 285 - 70

50x = 215

x = 215/50 = 4.3

1) If g(x) is a linear function, g(-2) = 6 and g(2) = 18, what is the rate of change? Is this function increasing or decreasing? Show your work!

Answers

Answers:

Rate of change = 3

The function is increasing

===================================================

Explanation:

The notation g(-2) = 6 means the input x = -2 leads to the output y = 6. Therefore, the point (-2,6) is on f(x). The other point given is (2,18).

For linear functions, the terms "rate of change" and "slope" are the same thing.

Let's use the slope formula on the two points (-2,6) and (2,18)

[tex](x_1,y_1) = (-2,6) \text{ and } (x_2,y_2) = (2,18)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{18 - 6}{2 - (-2)}\\\\m = \frac{18 - 6}{2 + 2}\\\\m = \frac{12}{4}\\\\m = 3\\\\[/tex]

The slope is 3, which can be written as 3/1

A slope of 3/1 means we go up 3 and to the right 1.

slope = rise/run = 3/1

rise = 3 = go up 3

run = 1 = go to the right 1

Since the slope is positive, this means the line is going uphill as we move to the right. In other words, the function is increasing.

Witch is the equation of the given line?x = -3x = 3y = -3 y = -3x

Answers

y=-3

1) Since the graph shows us a horizontal line, where any value of x corresponds to y=-3

(2, -3), (3,-3) etc..

2) Then we have a constant function. y=-3

Answer:

y = - 3

Step-by-step explanation:

the line is horizontal and parallel to the x- axis with equation

y = c ( c is the value of the y- coordinates the line passes through.

the line passes through (- 4, - 3 ) and (2, - 3 ) both with y- coordinate - 3 , so

y = - 3 ← equation of line

Please help me in your own words I only have 30 minutes

Answers

1) given

2) corresponding angle theorem

3) vertical angle theorem

4) transitive

Question 10
If the nth term of a sequence is
3n - 4 what is the 10th term?

Answers

Answer:

a₁₀ = 26

Step-by-step explanation:

to find a₁₀ substitute n = 10 into the nth term formula

a₁₀ = 3(10) - 4 = 30 - 4 = 26

you are in a car race. during a 10 second pit stop, the other cars gain 1/4 mile on you. how much would the other cars gain on you during a 1 min pit stop.

Answers

When the pit stop duration is one minute other cars will gain 3/2 miles

Time duration of a pit stop during the car race = 10 seconds

The distance gained by other cars = 1/4 mile

Pit stop: During a race, a racing car makes a pit stop to get fuel, fresh tires, repairs, mechanical adjustments, a new driver, or any combination of the aforementioned. The pits typically consist of a row of garages where the work is done outside and a pit lane that runs parallel to the start/finish straight and is connected to the main track at each end.

When the duration is one minute or 60 seconds, then the distance gained by other cars will be:

Distance gained by other cars in 10 seconds*6 = 1/4*6 = 3/2 miles

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Solve the following system of equations.

-8x -9y = 10
4x -5y = 14


(See picture attached)

Answers

Answer:

x=10 and y=-10

Step-by-step explanation:

-8x-9y=10

4x-5y=14

put each equation in brackets and get the coefficient of y in the first equation , multiply it with everything in the second equation .Get also the coefficient of y in the second equation and multiply it with everything in the first equation.

-5(-8x-9y=10)

-9(4x-5y=14)

the subtract the first equation from the second equation after multiplying.

40x+45y=-50

-

-36x+45y=-90

4x=40

x=10

Now get any equation from the two equations and find the value of y.

-8x-9y=10

-8*10-9y=10

-9y=10+80

-9y=90

y= -10

Help please basic geometry

Answers

From the diagram in the image below, it can not be assumed that A C D is a right angle. Option A

This is further explained below.

What is a triangle's right angle?

Generally, In a triangle, a right triangle, also known as a right-angled triangle, an orthogonal triangle, or what was previously known as a rectangle triangle, is a triangle in which either one of the triangle's angles is a right angle or two of the sides are perpendicular to one another.

The relationship between the sides of a right triangle and the other angles provides the foundation for the study of trigonometry.

In conclusion, It is not possible to deduce from the diagram in the figure below that the angle ACD are right angles. Alternative A

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Factor completely.
25 - 9x²

Answers

IF YOU CHECK YOU WILL FIND THAT THIS IS A DIFFERENCE OF TWO SQUARES

[tex] = (5 - 3x)(5 + 3x)[/tex]

ATTACHED IS THE SOLUTION

Elijah buys 112 words of exterior equipment from thestereo store there is a 2.5% processing fee for using a credit card what is the total cost of the stereo quitman

Answers

Given,

Elijah buys $112 worth of exterior equipment from the stereo store.

Processing fee for using the credit card = 2.5%

Therefore,

Total cost of the exterior equipment

= Worth price + procession fee

= 112 + 2.5% of 112

= 112 + 2.8

= 114.8

Hence, the  total  cost would be $114.8

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Show the relationship between -5/6 and -7/10. Use an inequality symbol.

[number] / [number] < Fraction btw not division

Answers

The relationship between -5/6 and -7/10 is -5/6< -7/10.

What is inequality?

It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.

The sign for more than is >. In other words, -7/10>-5/6 means "-7/10 is bigger than -5/6." The sign for less than is <.There is two other sign which represents greater than or equal to and less than and equal to.

It is given that,

Fraction 1,

-5/6 = -0.83

Fraction 2,

-7/10 = -0.7

As we know the value of  -0.7 is greater than -0.83.

As a result, the relationship is -5/6< -7/10.

Thus, the relationship between -5/6 and -7/10 is -5/6< -7/10.

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which value is a solutions of 7/4x^2 -2 = 0.5 x+4

Answers

Answer:

x= 2 x= -1 5/7

Step-by-step explanation:

I believe this is the answer I used a math site.


Find the measure of

Answers

We can conclude that the angle ∠RST is 110°.

What are angles?An angle is a figure in plane geometry that is created by two rays or lines that have a common endpoint. The Latin word "angulus," which means "corner," is the source of the English word "angle." The common endpoint of two rays is known as the vertex, and the two rays are referred to as the sides of an angle.

So, as we can see line R and line T are parallel to each other.

Join, R and T with a line that makes a right angle with both lines.

(Refer to the image attached below)

Now, we know that ∠R = 90° and ∠SRT = 90 - 60 = 30°.Similarly, ∠T = 90° and ∠STR = 90 - 50 = 40°.

In triangle SRT, we know the two angles which are ∠R = 30° and ∠T = 40°.

We know that sum of all angles in a triangle is 180°.

So, ∠S in triangle SRT will be:

40 + 30 + ∠S = 18070 + ∠S = 180∠S = 180 - 70∠S = 110

Therefore, we can conclude that the angle ∠RST is 110°.

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The functions f and g are defined as follows.
g(x) = 4x+2
f(x)=3x²-3x
Find f(-5) and g(-4).
Simplify your answers as much as possible.

Answers

The value of functions f(-5) and g(-4) are 90 and -14 respectively.

What are functions and how to evaluate them?An expression, rule, or law in mathematics that establishes the relationship between an independent variable and a dependent variable.In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.Finding the value of f(x) =... or y =... that corresponds to a certain value of x is what it means to evaluate a function. To accomplish this, merely swap whatever value has been set to x into each of the x variables.

Given functions are:

g(x) = 4x+2

f(x) = 3x²-3x

We have to find f(-5) and g(-4).

f(x) = 3x²-3x, here in the function we replace the x variables with the value given.

f(-5) = 3x²-3x

     = 3(-5)² - 3(-5)

     = 75 + 15 = 90

g(x) = 4x+2

g(-4) = 4×(-4) + 2

       = -16 + 2 = -14

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A bottled water company quality control officer wants to find out how well the label machines are working. He is studying every machine and every bottle to make sure it is usable to a customer. Which represents a population?

the first fifty bottles labeled on Monday morning
one hundred bottles
all the bottles with incorrectly placed labels
all the bottles produced in one day

Answers

All the bottles produced in one day represents the population in statistics .

In statistics, a population is a collection of similar things or events that are important to a specific experiment or topic.

A statistical population can be made up of actual objects (such all the stars in the Milky Way galaxy) or hypothetical groups of things that are assumed to be an infinite number of objects based on experience-based generalizations (e.g. the set of all possible hands in a game of poker). A common objective of statistical analysis is to gather information about a chosen community.In statistical inference, a subset of the population (a statistical sample) is chosen to represent the population in a statistical study.The statistical sample must also fairly and accurately represent the population.

Since the population represents all the data for a particular time period , in this case we can conclude that the population for the factory will be all the bottles produced in 1 day.

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Darrel divided 575 by 14 by using partial quotients. What is the quotient? Explain your answer using numbers and words.

Answers

Answer: 41 1/14

Step-by-step explanation:

      41R1 ==> 41 1/14

14|575

  -56

  ____

      15  

     -14

      __

       1

What is the equation in slope-intercept form of a line (y = mx + b) that has aslope of 3 y-intercept of 6?

Answers

The equation of the line is y = 3x + 6

What are linear equations?

Linear equations are equations that have constant average rates of change.

Note that the constant average rates of change can also be regarded as the slope or the gradient

How to determine the equation of the line?

The given parameters are

Slope, m = 3

y-intercept, c = 6

A linear equation is represented as

y = slope * x + y-intercept

i.e.

y = mx + c

So, we have

y = 3x + 6

Hence. the linear equation is y = 3x + 6

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given a function f (x), what transformation(s) take place in the graph of -f (x + 4)?

Answers

Given a function f(x), the transformation(s) that take place in the graph of -f(x + 4) are; Shifting the function by 4 units to the left and reflection about the horizontal axis.

What is the transformation of the function?

We are told that a function f(x) undergoes transformation to get -f(x + 4).

Now, when it comes to transformation, moving the function by say c units to the right simply means subtracting c units from x. However, moving the function by c units to the left simply means adding c units to x.

Now, when we transform f(x) to f(-x), it simply means a reflection about the vertical axis. Whereas, when we transform f(x) to -f(x), it simply means a reflection about the horizontal axis.

Thus, the transformation of f(x) to -f(x + 4) is simply shifting the function by 4 units to the left and reflection about the horizontal axis.

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can someone help me with this

Answers

Answer:

if im not mistaken its $11

Step-by-step explanation: dint know how to explain but i think its correct

Use the number line to add the fractions.



Drag and drop the answer into the box to match the sum.

Answers

The value gotten when -1/2 is added to 2/3 is 1/6.

What is the sum of the fractions?

Addition is the process that is used in mathematics to determine the sum of two or more numbers. The sign that represents addition is +.

A fraction is a non-integer that has a numerator and a denominator. The numerator is the number above the line and the denominator is the number below the line. An example of a fraction is 1/2. 1 is the numerator and 2 is the denominator.

[tex]-\frac{1}{2} + \frac{2}{3}[/tex]

[tex]\frac{-3 + 4}{6}[/tex] = [tex]\frac{1}{6}[/tex]

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