1answer.
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
Alenkinab [10]
3 years ago
15

If the atmospheric pressure at Mangamaunu Beach is 1000 millibars and we assume the general guideline that atmospheric pressure

decreases by approximately 50% for every 5-kilometer increase in altitude, what will the atmospheric pressure be at the summit of Manakau?
Mathematics
1 answer:
Mashutka [201]3 years ago
4 0

Answer:

Atmospheric Pressure = 739.2 millibars

Step-by-step explanation:

To answer this question one should assume that Mangamaunu Beach is at sea level ( altitude = 0 m) and that the summit of Manakau is at 2608 meters.

The change in atmospheric pressure with altitude in the first 5 km can be roughly represented by a linear relationship with slope "m" as follows

(500-1000) = m(5000 - 0)\\m = -0.10

Giving the following equation:

(Pressure - 1000) = -0.10Height

Applying for Height = 2608 m

Pressure = -0.10(2608) + 1000\\Pressure = 739.2 millibars

You might be interested in
6. To predict the annual rice yield in pounds we use the equation y-hat = 859 + 5.76x1 + 3.82x2 where x1 represents the number o
zysi [14]
The yield is given by the regression equation
y = 859 + 5.76x₁ + 3.82x₂ 
where
x₁ = number of acres planted
x₂ = number of acres harvested

The goodness of fit is r² = 0.94.
This appears to a very good fit to the data because it is almost equal to 1.
To assess the goodness of fit in a statistical sense, it may also necessary to perform an F-test in a hypothesis test. This is not possible without having raw measured data.
For this problem, r²=0.94 may be considered to be a very good fit to the measured data.

Part a.
When x₁ = 3200 acres and x₂ = 3000 acres, obtain
y = 859 + 5.76*3200 + 3.82*3000
   = 30,751 pounds

Part b.
Without performing a hypothesis test or a residual plot, we can conclude that the predicted value is in very good agreement with the actual value.

Because we do not have raw measured data, we can neither plot the residuals nor perform a hypothesis test.

In general,
When r² = 1, the agreement is exact.
When r² = 0, there is absolutely no agreement.
A value of r² > 0.9 is considered good.


3 0
3 years ago
Solve 5x2 = −30x − 65.<br><br> x = −3 ± 2i<br> x = −3 ± 4i<br> x = −6 ± 2i<br> x = −6 ± 4i
Vladimir [108]
The answer is -6 -/+ 4i. Hope this helps.

8 0
3 years ago
1.Find x,y and z in the figure. 2. find the x and y in the figure ​
STALIN [3.7K]

\\ \sf\longmapsto x+2x+90=180

\\ \sf\longmapsto 3x+90=180

\\ \sf\longmapsto 3x=180-90

\\ \sf\longmapsto 3x=90

\\ \sf\longmapsto x=\dfrac{90}{3}

\\ \sf\longmapsto x=30

Now

\\ \sf\longmapsto x=2y(Opposite interior angles)

\\ \sf\longmapsto 2y=30

\\ \sf\longmapsto y=\dfrac{30}{2}

\\ \sf\longmapsto y=15

And

\\ \sf\longmapsto x+z=180

\\ \sf\longmapsto z+30=180

\\ \sf\longmapsto z=180-30

\\ \sf\longmapsto z=150

6 0
2 years ago
Read 2 more answers
-7=9+c/5 what's the value of c ​
Eduardwww [97]

Answer:

C = -80

Step-by-step explanation:

Solve for c by simplifying both sides of the equation, then isolating the variable.

4 0
3 years ago
Read 2 more answers
You borrow $1900 to buy a refrigerator. The simple interest rate is 11%. You pay off the loan after 5 years. How much do you pay
leonid [27]
I = PRT is the formula to use for this.

I = (1900)(.11)(5)
I = 1045

1900 + 1045 = 2945

I need to pay $2945 for the refrigerator.
7 0
3 years ago
Other questions:
  • Alvin is 13 years older than elga. the sum of their ages is 107. what is elga's age
    8·2 answers
  • How many liters of 10% acid solution should be mixed with 30 liters of a 50% acid solution to get a mix that a 20% acid?
    10·1 answer
  • Simplify this polynomial:
    6·2 answers
  • In 2014 a toy store sold 11 839 stuffed animals In 2015 the toy store sold 24250 more stuffed animals than 2014. The toy store s
    15·2 answers
  • Help pls for question 59.<br> Answers could be:<br> A) -3<br> B) -2<br> C) -1 <br> D) 0 <br> E) 17
    5·1 answer
  • Find the maximum height of the baseball. I think 68. If it's wrong or right then please explain!
    11·1 answer
  • PLEASE HELP!<br> which expression is equivalent to 4(3+5) - 3.9%?<br> C 1220-54
    14·1 answer
  • What is an eqivalent expression for 3 - 5​
    11·1 answer
  • Explain the Mistake
    12·1 answer
  • 3. This is a graph of the function f(x) = -3x + 1.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!