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Westkost [7]
2 years ago
9

Help meeeeeeeeeee pleaseee

Mathematics
1 answer:
liraira [26]2 years ago
7 0

The pressure of 28 inches of mercury occurs about 6 miles from the eye of the hurricane. We get this from the given algebraic expression.

<h3>What is an expression?</h3>

An expression is formed by variables, constants, and algebraic operations. Since the operation among them is an algebraic or arithmetic operation, it is said to be an algebraic expression.

<h3>Calculation:</h3>

It is given that the algebraic expression that relates the barometric pressure and the eye of the hurricane as

f(x) = 0.48 ln(x+2) + 27

Here x is the distance in miles from the eye of the hurricane.

f(x) is the pressure of the mercury in a barometer in inches

So, the required distance from the eye of the hurricane when the pressure of 28 inches of mercury in the meter is

(Here f(x) = 28)

f(x) = 0.48 ln(x+2) + 27

⇒ 28 = 0.48 ln(x+2) + 27

⇒ 0.48 ln(x+2) = 28 - 27

⇒ ln (x+2) = 1/0.48

⇒ ln(x+2) = 2.0833

Applying exponential base "e" on both sides, we get

(x+2) = e^{2.0833}

⇒ x + 2 = 8.0309

⇒ x = 8.0309 - 2 = 6.0309

When the result is rounded to the nearest whole number, we get x = 6 miles.

Thus, for the pressure of 28 inches of mercury, the eye of the hurricane is 6 miles far from the barometer.

Learn more about an expression here at the following link:

brainly.com/question/4541471

#SPJ1

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14/28 as a ratio a decimal and a percent
Sergeeva-Olga [200]
\frac{14}{28} is our fraction, which is not in lowest form, and therefore can be reduced. We can divide both numerator and denominator by 2, and we end up with 

\frac{7}{14}

7 goes into 14 twice, so we can reduce it further to become

\frac{1}{2}

To convert a fraction to a ratio, you just need to turn it on its side and make the | into a : So it would look like this:

1:2

1 / 2 = 0.5

<span>0.5 is the fraction in decimal form

To find a percentage, you just need to multiply the decimal by 100.

0.5 in percentage form would be 50%

Hope that helped =)
</span>
5 0
3 years ago
Read 2 more answers
Hi pls double check my work. My teacher says it’s wrong but I don’t know where
ivann1987 [24]

Answer:

1.56

Step-by-step explanation:

Don't forget your decimal placement. other than that you are correct I believe

5 0
3 years ago
Is my answer correct !???
puteri [66]
Yes, your answer is correct.
5 0
3 years ago
Use the distance formula to find the perimeter of the triangle below. Round you answer to the nearest hundredth. ​
Murrr4er [49]

<u>jAlright, let's take this problem step-by-step</u>:

<u>What is the perimeter</u>:

 ⇒ all the side-lengths added up

    ⇒ <em>need</em> to find side-length using distance formula

                Distance_._. Formula=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

                         - (x₁,y₁): first point

                         - (x₂,y₂): second point

<u>Let's solve</u>:

  • Find length of <em>AC</em>

           ⇒ <em>first point</em>: (5,7)

<em>            ⇒ second point: </em>(3,3)

<em>            </em>Distance =\sqrt{(3-5)^2+(3-7)^2} =\sqrt{4+16} =\sqrt{20} =4.472

  • Find length of AB

          ⇒ <em>first point:</em> (5,7)

<em>           ⇒ second point:</em>(8,6)

<em>            </em>Distance=\sqrt{(8-5)^2+(6-7)^2} =\sqrt{9+1} =\sqrt{10}=3.162

  • Find length of BC

          ⇒<em> first point: </em>(8,6)

<em>           ⇒ second point: </em>(3,3)

<em>            </em>Distance = \sqrt{(3-8)^2+(3-6)^2} =\sqrt{25+9} =\sqrt{34}=5.831

<u>Now let's solve for the perimeter</u>:

  Perimeter = 4.472+ 3.126+ 5.831=13.429

<u>Answer: 13.43</u> (<em>rounded to the nearest hundredth)</em>

Hope that helps!

#LearnwithBrainly

<em>               </em>

5 0
2 years ago
Subtract (9x-8) - (x 4)=
storchak [24]
5×-8 this is the answer
5 0
3 years ago
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