In 1812, an earthquake of magnitude 7.9 shook New Madrid, Missouri. Compare the intensity level of that earthquake to the intensity level of each earthquake below.
magnitude 9.5 in Valdivia, Chile, in 1960

Answers

Answer 1

The intensity level of the earthquake in New Madrid, Missouri in 1812 was about 1.6 times less than the intensity level of the earthquake Valdivia, Chile, in 1960.

We use the following formula for comparing the intensity level of earthquakes-

Log (i1 / i2) = M1 - M2

where i = intensity level determined by a seismograph

M = magnitude on a Richter scale.

Now, from the given information-

magnitude of earthquake in New Madrid = 7.9

Thus, M1 = 7.9

Then intensity of the earthquake in New Madrid = i1

magnitude of earthquake in Chile = 9.5

Thus, M2 = 9.5

Then intensity of the earthquake in Chile = i2

⇒ log (i1 / i2) = 7.9 - 9.5

log (i1 / i2) = -1.6

This means that the intensity level of the earthquake in New Madrid, Missouri in 1812 was about 1.6 times less than the intensity level of the earthquake Valdivia, Chile, in 1960.

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Related Questions

como se escribe la cantidad en letra de 855672019

Answers

La cantidad 855672019 descrita en palabras es Ochocientos cincuenta y cinco millones seiscientos setenta y dos mil diecinueve.

¿Cómo representar una cantidad mediante una frase?

En este ejercicio debemos representar en palabras la cantidad asociada al conjunto de dígitos descritos en el enunciado. Para leer y describir un número se lee de izquierda a derecha, en donde un dígito a la derecha tiene más magnitud que un dígito a la izquierda, de modo que se comienza con el dígito de mayor magnitud hasta alcanzar el de menor magnitud.

8 - Ochocientos millones

5 - Cincuenta millones

5 - Cinco millones

6 - Seiscientos mil

7 - Setenta mil

2 - Dos mil

01 - Diez

9 - Nueve

En consecuencia, la cantidad 855672019 es Ochocientos cincuenta y cinco millones seiscientos setenta y dos mil diecinueve.

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A right triangle has a hypotenuse
with length 17 and a leg with
length 10. How long is the
triangle's other leg?

Answers

Answer:

[tex]3\sqrt{21}[/tex]

Step-by-step explanation:

By the Pythagorean theorem,

[tex]\sqrt{17^2-10^2}=\sqrt{189}=3\sqrt{21}[/tex]


Solve each equation.
2x=8

Answers

Solution of this polynomial equation is x = 4

What are polynomial equations ?

In mathematics, polynomial equation can be defined as the equation which consist of coefficient, variables and exponents. A polynomial equation has positive numbers as their exponent which is also known as its degree. All the equations such as quadratic equation, cubic equation which has non  negative number as their powers are part of polynomial equation.

Types of polynomial equations :

Monomial equationBinomial equationCubic EquationsLinear Polynomial Quadratic Polynomial

Some examples of polynomial equation are :

2x+53x = 93x² + 5x+19(x-3)³

According to question,

2x = 8

=> 2x / 2 = 8 /2

=> x = 4

Thus solution for given equation is x = 4.

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Carson wants to divide 128 by 3.2. What is the place value of the first digit in his answer?
tenths
ones
tens
hundreds

Answers

Answer:Tenths

Step-by-step explanation:Hope it helps

Find the x-intercept and y-intercept
from the following linear equation:
8x - 9y = 144

Answers

Answer:

X intercept (18,0)

Y intercept(0,16)

Step-by-step explanation:

hope this was helpful!

The product of two factors is 1. One of the factors is 1. Can you tell what the other factor is? A. Yes; the other factor is 0 since 0 × 1 = 1. B. Yes; the other factor is 1 since 1 × 1 = 1. C. No; any number times 0 is 0, so there is no way to know what the other factor is. D. No; any number times 1 is 1, so there is no way to know what the other factor is.

Please help I have to turn in my homework by tonight at 11:00 PM!

Answers

The product of two factors is 1. One of the factors is 1. B. Yes; the other factor is 1 since 1 × 1 = 1.

How to calculate the value?

From the information given, the product of two factors is 1 and one of the factors is 1.

Let the other number = y

The other number will be:

1 × y = 1

y = 1

Therefore, the other number is 1

In conclusion, the correct option is B.

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Which sum or difference is equivalent to the following expression?
2x+3/4

A. x/2 + 3/4
B. x/2 - 3/4
C. 3x/4 + 3/4
D. 8x +24

Answers

The expression that is equivalent to (2x + 3)/4 is: A. x/2 + 3/4.

How to Find Expressions that are Equivalent?

Express the given expressions in their simplest form to determine the expression that is equivalent to (2x + 3)/4.

A. x/2 + 3/4

Find the common denominator. The common denominator is 4. Therefore:

=  2(x) + 1(3)/4

= (2x + 3)/4

x/2 + 3/4 ≠ (2x + 3)/4

Thus, the expression, x/2 + 3/4 is equivalent to (2x + 3)/4.

B. x/2 - 3/4 = (2x - 3)/4

Therefore, x/2 - 3/4 ≠ (2x + 3)/4

C. 3x/4 + 3/4 = (3x + 3)/4

Therefore, 3x/4 + 3/4 ≠ (2x + 3)/4

D. 8x + 24 ≠ (2x + 3)/4

Therefore, 8x + 24 ≠ (2x + 3)/4

In summary, we can conclude that, the expressions, x/2 - 3/4, 3x/4 + 3/4, and 8x +24x/2 + 3/4 is not equivalent to (2x + 3)/4. Thus, the expression that is equivalent to (2x + 3)/4 is: A. x/2 + 3/4.

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01.07 Operations with Scientific Notation

CCSS.Math.Content.8.EE.A.4
Perform operations with numbers expressed in scientific notation, including problems where both decimal and scientific notation are used. Use scientific notation and choose units of appropriate size for measurements of very large or very small quantities (e.g., use millimeters per year for seafloor spreading). Interpret scientific notation that has been generated by technology.

Answers

Two random numbers 180000000 and 0.00000534 can be written as 1.8 x 10⁸ and 5.34 x 10⁻⁶.

What is a scientific notation?

Numbers that are either too large or too little to be conveniently stated in decimal form can be expressed using scientific notation. It may be called scientific form.

When a number is written using only the digits of the number, that is considered standard notation. Since words are not used in conventional number notation, this is the way that numbers are typically written.

Let the bigger number by 180000000  and the smaller number be 0.00000534. The two numbers in scientific notations can be written as below:-

180000000   = 1.8 x 10⁸

0.00000534 = 5.34 x 10⁻⁶.

Therefore, two random numbers 180000000 and 0.00000534 can be written as 1.8 x 10⁸ and 5.34 x 10⁻⁶.

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how do you divide 1/2 by -4

Answers

Answer:

Step-by-step explanation:

1/2÷4 = 1/8 = 0.125.

[tex]\cfrac{1}{2}\div -4\implies \cfrac{1}{2}\div \cfrac{-4}{1}\implies \cfrac{1}{2}\cdot \cfrac{1}{-4}\implies {\LARGE \begin{array}{llll} -\cfrac{1}{8} \end{array}}[/tex]

2/3p - 11 = 1/3p -15

p=_ ​

Answers

Answer:

p = - 12

Step-by-step explanation:

[tex]\frac{2}{3}[/tex] p - 11 = [tex]\frac{1}{3}[/tex] p - 15

multiply through by 3 to clear the fractions

2p - 33 = p - 45 ( subtract p from both sides )

p - 33 = - 45 ( add 33 to both sides )

p = - 12

Answer:

-12

Step-by-step explanation:

(sorry its a bit messy - hope it helps though!)

help pleaseeeeeeeeeeeee

Answers

Answer:

Inverse property

Step-by-step explanation:

3/4 is the reciprocal of 4/3 which means they would cancel each other out. So you would only be left with x=x

simply fully: square route 8 x square route 18

Answers

Answer:

12

Step-by-step explanation:

[tex]\sqrt{8} * \sqrt{18} =12[/tex]

Write
24/25
as a percentage.

Answers

Answer: 96%

How to Solve

Formula:

y ÷ x *100
Substitute
=> 24 ÷ 25 * 100

Lets Multiply 24 * 100 (or you can divde 24 and 25 then multiply with 100. do as you're convenience, answer will remain)
Answer 2400

Now As our formula says divide 2400 by 25
Answer  96

Hence 96%

So, 24/25

as a percentage is 96%

All done!

Answer:

96%

Step-by-step explanation:

First, divide 100 but 25 (the denominator) and you get 4. This means that to get a number over 100, which is a percentage you need to multiply the initial fraction by 4. You get 96/100, and you can remove the 100 to get 96%

Write 987.6 in scientific notation.

Answers

Decimal value                                     Scientific Notation

987,650,000                                       9.8765 × 108

6) On a map scale 1cm to 250m the area of
a car park is 3cm². What is the actual
area of the care park in hectares? (1 hectare=10,000m^2)

Answers

The actual area of the care park in hectares is 18.75

As per the known fact, ratio of measurement on scale is equal to the ratio of measurement in real. So, writing the equation first -

Area of car park = 3 cm²

Keep the value of 1 cm in the above mentioned equation.

Area of car park = 3 × (250)²

Taking square

Area of car park = 3 × 62,500

Performing multiplication

Area of car park = 1,87,500 m²

Converting the area in hectares

10,000 m² = 1 hectare

1,87,500 m² = (1 ÷ 10,000) × 1,87,500

1,87,500 m² = 18.75 hectares.

Therefore, the actual area of the care park is 18.75 hectares.

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6.5 * 5 3/4 that is my question

Answers

6.5 can be translated to 6 1/2 times 5 3/4 or 5 3/4 can be translated to 5.75 times 6.5 which equals 37.375

4 metode la 381-(x+y)=15

Answers

Answer:

codec log 8x + y =15

Step-by-step explanation:

have a good day!

codec log 8x + y =15

The function y = log(x) is translated 1 unit right and 2 units down. Which is the graph of the translated function?

Answers

The function [y = log(x)] is translated 1 unit to the right and 2 units down, yielding [g(x) = log(x - 1) - 2] as the translated function. and this may be established by using the transformation's rules.

Given:

One unit to the right and two units down translate the function y=log(x).

The translated function's graph can be drawn using the procedures listed below:

First, write the function that is supplied.

y = log(x) (x)

Step 2: Multiply the given function in the right direction—that is, in the positive x-axis direction—by factor 1 in accordance with the data provided. The aforementioned function is now:

f(x) = lox (x - 1)

Step 3: Next, move the graph of the function f(x) in a downward direction, or in the opposite direction of the y-axis.

g(x) = log(x - 1) - 2

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Classify each number as rational or irrational

Answers

6.25 [rational]
11/3 [rational]
Sqrt 3/16 [irrational]
Sqrt 48 [irrational]
0.01045 [rational]
Sqrt 16/81 [rational]
16pi [irrational]
0.42 [rational]

In a survey, respondents were asked which type of activity they enjoyed most while on vacation. The bar graph shows the responses of males and females.

How many more males than females said that bike riding was their favorite activity?

Answers

Answer: 1

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

given f(x)=x-2, write the new function if the y-intercept is decreased by six units.

Answers

Answer:

f(x) = x - 8

Step-by-step explanation:

“Solve the equations”3x*3-9x^2-54x=0

Answers

Solution:
x = 0
x = −5

Answer:x=6 x=-3

Step-by-step explanation:

3x(x^2-3x-18)=0

   (X-6)(x+3)=0

X-6=0.      X+3=0

 +6=+6.       -3=-3

X=6.             X= -3

0.3596 is considered a rational number. What makes this number rational

Answers

Answer:

see explanation

Step-by-step explanation:

a rational number has the form

[tex]\frac{a}{b}[/tex] , where a and b are integers

given

0.3596 ← with 6 in the [tex]\frac{1}{10000}[/tex] place

= [tex]\frac{3596}{10000}[/tex] = [tex]\frac{899}{2500}[/tex] ← a rational number


A cake recipe says to bake the cake until the center is 180⁰F , then let the cake cool to 120⁰F. The table shows temperature readings for the cake.

a. Given a room temperature of 70⁰F , what is an exponential model for this data set?

Answers

The exponential model for the given data set is [tex]y(x) = 70 + (110)e^{-0.135x}[/tex].

Given that cake recipe says to bake the cake until the center is 180⁰F , then let the cake cool to 120⁰F and the table shows temperature readings for the cake and the room temperature is 70°F.

Temperature at time = 0 min, y₀= 180° F

Ambient (room) tempertaure = y₁ = 70° F

Using Newton's cooling method,

y(x) = y₁ + (y₀ - y₁)e⁻ⁿˣ

y(x) = 70 + (180-70)e⁻ⁿˣ

y(x) = 70 + (110)e⁻ⁿˣ

Given, at x=5 min, y(5) = 126,

y(5) = 70 + (110)e⁻⁵ⁿ  = 126

Solving,  e⁻⁵ⁿ  = (126-70)/110 = 0.5091

Taking and log and solving for n,

- 5n = log(0.5091)

-5n= -0.67511

n = 0.135

Thus, the exponential model is [tex]y(x)=70+(110)e^{-0.135x}[/tex]

Hence, an exponential model for given data set when a room temperature  of 70°F is [tex]y(x)=70+(110)^{-0.135x}[/tex].

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Question 6(Multiple Choice Worth 2 points)
(Linear Relationships MC)
At a restaurant, hot chocolate can be purchased in three different cup sizes. A 12-ounce cup costs $1.97, a 16-ounce cup costs $2.62, and a 20-ounce cup costs $3.27.
Which statement is true based on the given description?
O The description shows a linear relationship, but not a proportional relationship.
O The description shows a linear relationship and a proportional relationship.
O The description does not show a linear relationship or a proportional relationship.
O The description shows a proportional relationship, but not a linear relationship

Answers

We need to know about linear and proportional relationship to solve this problem. Statement 2 is true, the description shows a linear relationship and a proportional relationship.

Linear relationship is a relationship between two variables where if one increases the other increases or if one decreases the other decreases. The varibales in a linear relationship form a straight line on graph. Proportional relationship is the relationship between two variables where the ratio between pairs of different data always remains constant. In the given question, a 12 ounce cup costs $1.97, a 16 ounce cup costs $2.62 and a 20 ounce cup costs $3.27. The price of each cup increases with increase in capacity of the cup, so we can say that the cup capacity and price have a linear relationship. The ratio between each pair can be given by

12/1.97=6.10

16/2.62=6.10

20/3.27=6.10

The ratios between every pair is same, so it is a proportional relationship.

Thus we found that the description shows a linear relationship and a proportional relationship between the cup capacity and it's price, statement 2 is the right option.

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x+1, 2x-1 and 3x + 1 are the first three terms of a G.P. If x=0, find the common ratio.

Answers

Step-by-step explanation:

if that is a geometric sequence to find the common ratio

[tex] \frac{t2}{t1} [/tex]

you divide the exceeded term with the previous term

simply you can say

[tex] \frac{tn}{t(n - 1)} [/tex]

therefore now we have

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

therefore you will substitute x=0 in any of the given equations they should give youbthe same answer

[tex] \frac{2(0) -1 }{0 + 1} = - 1[/tex]

or

[tex] \frac{3(0) + 1}{2(0) - 1} = - 1[/tex]

the common ratio is -1


Evaluate each logarithm.
log₃9

Answers

The value of the expression log₃9 is 2.

The logarithmic function is the inverse of the exponential function. This means that the logarithm of a given number, say x, is the exponent to which another fixed number that is the base b, must be raised, so as to produce that number x.

Log a to the base b can be written as- log a/ log b.

Moreover, log [tex]a^{k}[/tex]= k log a, for all non negative values of a

Here, we are given a logarithmic expression- log₃9

We can expand this as-

log₃9 = log 9/ log 3

= log [tex]3^{2}[/tex]/ log 3

= 2 log 3/ log 3

= 2

Thus, the value of log₃9 is 2.

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Write each expression as a single natural logarithm. ln a-2 ln b+1/3 ln c

Answers

We have expression ln a-2 ln b+1/3 ln c as a single natural logarithm

㏑ [tex](\frac{ac^{\frac{1}{3} }}{b^2} )[/tex]

What is a natural logarithm?

A number's natural logarithm is its logarithm to the base of the transcendental and irrational number e, which is roughly equivalent to 2.718281828459.

Typically, the natural logarithm of x is denoted by the symbols ln x, loge x, or, if the base e is implicit, just log x. When adding parentheses for clarity, the values ln(x), loge(x), or log (x). In order to avoid ambiguity, this is notably done when the argument to the logarithm is not a single symbol.

The power to which e would need to be raised in order to equal x is the natural logarithm of x.

For instance, e2.0149... = 7.5, thus ln 7.5 equals 2.0149.

Since e1 = e, the natural logarithm of e itself, or ln e, is equal to 1, while the natural logarithm of 1 is 0, since e0 = 1.

We have been asked to express ln a-2 ln b+1/3 ln c as a single natural logarithm.

⇒ ln a-2 ln b+1/3

⇒ ㏑ (a) - ㏑ (b²) + ㏑ [tex]c^{\frac{1}{3} }[/tex]

Use the quotient property of logarithms for ln a-2 ln b

⇒ ㏑ [tex](\frac{a}{b^2} )[/tex] + ㏑ [tex]c^{\frac{1}{3} }[/tex]

Use the quotient property of logarithms for ㏑ [tex](\frac{a}{b^2} )[/tex] + ㏑ [tex]c^{\frac{1}{3} }[/tex]

⇒ ㏑ [tex](\frac{ac^{\frac{1}{3} }}{b^2} )[/tex]

Finally, we have expressed ln a-2 ln b+1/3 ln c as a single natural logarithm ㏑ [tex](\frac{ac^{\frac{1}{3} }}{b^2} )[/tex]

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Find the degree measure of the indicated angle.

Answers

Answer:

75 degree

Step-by-step explanation:

35+70+75=180 degree

Data points are considered to be unusual if they are more than two standard deviations
away from the mean. Which data points in each distribution are considered to be unusual?
Show all work.

Answers

Answer:

Step-by-step explanation:

30 and 20

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