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Ierofanga [76]
3 years ago
10

A hydraulic engineer is studying the pressure in a particular fluid. The pressure is equal to the atmospheric pressure 101 kN/m

plus 8 kN/m for every meter below the surface, where kN/m is kilonewtons per meter, a unit of pressure. CAREERS IN MATH a. Write an expression for the pressure at a depth of d1 meters below the liquid surface. b. Write and solve an equation to find the depth at which the pressure
Mathematics
1 answer:
miskamm [114]3 years ago
6 0

Answer:

Step-by-step explanation:

The pressure is equal to the atmospheric pressure 101 kN/m plus 8 kN/m for every meter below the surface, therefore;

a. expression for pressure is given by,

    Pressure = 101 + 8d   ............................... (1)

    where d = depth below the surface in meter.

b. to find the depth at any pressure, equation (1) above is rearranged to make depth (d) subject of the formula

    d = \frac{Pressure - 101}{8}

as an example, to find depth at pressure of 200N/m

d = (200 - 101)/8 = 12.375 meters

depth is 12.375 meters below the surface.

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I need to know this aspa idk how to do this
Gnoma [55]

Answer:

the answer is 1 1/3

Step-by-step explanation:

PQ is the same length as QR

therefore you would set the equations equal to each other

10x+10= 7x+14

-7x -7x

3x+10=14

-10 -10

3x= 4

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4 0
3 years ago
Explain how to write 50000 using exponents
Yakvenalex [24]
I think i need a bit more information but assuming if this is what you are looking for:

to write 50,000 in exponent form look for its multiples other than 1 and itself and then go from there.

This is what i general do, i pick a divisible number and keep dividing till i get to one.


50,000/2 = 25,000
25,000/5 = 5,000
5,000/10 = 500
500/10 = 50
50/10 = 5
5/5 = 1
so i divided by 2, 5,10, 10, 10, and 5 (three 10s, two 5s and one 2)

then i look if these numbers can be written in smaller divisible numbers (i.e. 10 is 2 and 5)

so 2, 5, (2,5), (2,5) ,(2,5), and 5 as you can see that cannot be divided into smaller numbers so we have thus five 5s and four 2s

therefore 50,000 = 5^5 x 2^4

hope this helps :P

(P.S. it is the best way i can explain online without a whole course on this)

3 0
3 years ago
Alondra says that (12 + 31) × 5 is equivalent to 12 + 31 × 5 because of the associative property. Determine if Alondra is correc
MAXImum [283]

Answer:

No

Step-by-step explanation:

(12 + 31) × 5 = 215

12 + 31 × 5 = 167

order of operations are the rules that state the sequence in which the multiple operations in an expression should be solved.

Order of Operations :

1. Parentheses

2. Exponents

3. Multiplication and Division

4. Addition and Subtraction

7 0
2 years ago
Please help fast!! Find the total surface area of the following cylinder:
neonofarm [45]

explanation:total=addition

area=base x height plus the width (area the amount beneath the surface).

equation:3cm both sides 3cm

answer: 3+3= 6cm .

7 0
3 years ago
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cricket20 [7]
If you talk of a scatter plot, regularly the x-axis is used to plot the explanatory variable, this is the possible cause; while the y-axis is used to plot the varibale that is being explained, the result, the efffect.

If you are dealing with a function or model, you the convention is to use the x-axis for the independent variable, this is the input, while the y-axis is for the output or dependent varibale (which is determined by the independent variable).
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3 years ago
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