answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
12345 [234]
2 years ago
6

In 1980, the United States' national debt exceeded $9 billion dollars. Express the exact dollar amount in scientific notation. U

se complete sentences to explain, step by step, how to convert a number from standard form to scientific notation. You may use your answer to question #1 to help you explain the process. Calculate, in scientific notation, how many times greater the recorded debt in 2010 is compared to the recorded debt in 1960. Express your answer in proper scientific notation
Mathematics
2 answers:
DanielleElmas [232]2 years ago
8 0
Well, 9 billion = 9,000,000,000 so in scientific form it would be 9 x 10^9 To get the exponent, just count the number of zeros, which for 9 billion we have 9
kramer2 years ago
3 0

$9 billion has 9 zeros so would be written as 9,000,000,000

 to write in scientific notation move the decimal point 9 places to the left so the number becomes 9

now that would be multiplied by 10 to an exponent. The exponent is equal to the number of spaced you moved the decimal point. In this case you moved it 9 places

 so scientific notation is 9x10^9


 1960 debt was 2.86x10^9, 2010 debt was 1.3562*10^13 -= 2.1x10^4 times more


You might be interested in
Beth wrote a system of equations to determine when a referee will earn the same salary working the East Conference and West Conf
notka56 [123]

Answer:

She is incorrect

Step-by-step explanation:

Step 1: substitute

135 into x in both equations

Step 2: Solve the equations. Once you do this you will get y = 5375 for the first one and y = 4720 for the second one, therefore she is incorrect

6 0
2 years ago
Below is the five Number summary for a 136 hikers who recently completed the John muir trail JMT the variable is the amount of t
Helga [31]

Answer:

IQR = Q_3 -Q_1 = 28-18 = 10

Now we can find the limits in order to determine outliers like this:

Left = Q_1 -1.5 IQR = 18 -1.5*10=3

Right = Q_1 +1.5 IQR = 18 +1.5*10=33

So for this case the left boundary would be 3, if a value is lower than 3 we consider this observation as an outlier

b. 3

Step-by-step explanation:

For this case we have the following summary:

Minimum = 9 represent the minimum value

Q_1 = 18 represent the first quartile

Median =Q_2= 21 represent the median

Q_3 = 28 represent the third quartil

Maximum=56 represent the maximum

If we use the 1.5 IQR we need to find first the interquartile range defined as:

IQR = Q_3 -Q_1 = 28-18 = 10

Now we can find the limits in order to determine outliers like this:

Left = Q_1 -1.5 IQR = 18 -1.5*10=3

Right = Q_1 +1.5 IQR = 18 +1.5*10=33

So for this case the left boundary would be 3, if a value is lower than 3 we consider this observation as an outlier

b. 3

7 0
2 years ago
Shota invests $1000 in a certificate of deposit that earns interest. The investment’s value is multiplied by 1.02 each year. Whi
DENIUS [597]

Answer:

1020

Step-by-step explanation:

1000 times 1.02

here the answer will be 1020.

step-by-step explanation:

1000 times 1.02= 1020

5 0
2 years ago
Read 2 more answers
Identify The functional relationship between the variables blank is a function of blank
vfiekz [6]
<h2>Complete Question: </h2>

The energy usage of a light bulb is a function. The input for the function is ___, measured in hours. The output of the function is energy usage, measured in _____. Identify the functional relationship between the variables. ________ is a function of __________. The graph of the function will show energy usage on the ________ axis and time on the _______ axis.

  • Input is <u>time</u>.
  • Output is measured in <u>kilowatts</u>.
  • <u>Energy usage</u> measured in kilowatts is a function of <u>time</u> measured in hours.

The graph representing the function will show:

  • energy usage (kilowatts) on the <u>y-axis</u>
  • time (hours) on the <u>x-axis.</u>

A light bulb as a function expends energy which is measured in kilowatts and it is dependent on time measured in hours.

This implies that, the amount of energy usage of the light bulb is determined by the number of hours the light bulb is turned on.

Thus, energy usage of the light bulb (kilowatts) is a function of time (hours).

Graphing the function, we would plot<em><u> the input (time) on the x-axis, against (output) energy usage on the y-axis.</u></em>

<em>Therefore</em>,

Input = time (hours) - plotted on the x-axis.

Output = energy usage (kilowatts) - plotted on the y-axis.

Learn more about functions here:

brainly.com/question/18738793

4 0
2 years ago
A scale model of a merry-go-round and the actual merry-go-round are similar. a. How many times greater is the base area of the a
Kipish [7]
The area ratio is the square of the linear dimension ratio. So if the merry-go-round base is circular, the area contains the square of the radius. If a polygon, the base can be divided into triangles. The area of each triangle involves the product of the base length and the height, so since both have the same change of length, the product will square the scaling ratio.
Let’s say the ratio of corresponding lengths is x:1 then the ratio of the base areas is x²:1.
The question doesn’t provide any figures.
Let’s put some in as an example. Let the actual merry-go-round be circular with a diameter of 20 feet, while the model is one foot in diameter. So the ratio of the actual ride and it’s model is 20:1. The area of the base of the actual ride is 100π sq ft. The area of the base of the model is π/4 sq ft. We expect the ratio of these areas to be 20²=400. 100π/(π/4)=400.
6 0
2 years ago
Other questions:
  • Distributed property for 0.75(3.5a-6b)
    8·1 answer
  • Given the functions f(x) = −2x − 1 and g(x) = −3x + 4, which operation results in the smallest coefficient on the x term?
    15·2 answers
  • At an airport restaurant, 2 sodas and 4 hamburgers cost $12.00. An order of 4 sodas and 2 hamburgers costs $9.00. How much does
    11·2 answers
  • A pipe cleaner lay across a wire shelf. The wires that make up the shelf are parallel, and the pipe cleaner is a transversal. Th
    15·2 answers
  • You are facing North. Turn 90 degrees left. Turn 180 degrees right. Turn around to reverse your direction. Turn 45 degrees left.
    5·2 answers
  • A radar antenna, making one revolution every 5 seconds, is located on a ship that is 6 km from a straight shoreline. How fast is
    14·1 answer
  • The amount of bacteria in a Petri dish increases at a rate proportional to the amount present. At time t=0, the amount of bacter
    10·1 answer
  • Which statement about proportional relationships is false?
    11·2 answers
  • Choose the algebraic expression that represents the area of a triangle that has a base 8 inches less than 2 times wider than the
    13·1 answer
  • Analyze the graphed function to find the local minimum and the local maximum for the given function. On a coordinate plane, a cu
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!