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lapo4ka [179]
3 years ago
13

M-2n=104m-5n=28 substitute ​

Mathematics
1 answer:
Harman [31]3 years ago
3 0

Answer:

m = 2

n = -4

Step-by-step explanation:

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A triangular plate with base 2 m and height 3 m is submerged vertically in water so that the tip is even with the surface. Expre
g100num [7]

Answer:

Hydrostatic Force = 35.28KN

Step-by-step explanation:

To solve this question, let's consider integrating the hydrostatic force from the top of the triangle to the bottom.

Formula for a thin horizontal slice of the triangle the force is;

δF=ρgxwδx

Where w is width of triangle; ρ is density of water and g is acceleration due to gravity

At depth x, the width of the triangle is w=2/3x.

Thus, F = (3,0)∫)ρgxwδx

=(2/3)ρg[(3,0)∫)x²δx]

= integrating, we have;

F = (2/3)ρg[(3³/3) - (0³/3)]

F = (2/5)ρg [27/3] = (2/5)(1000)(9.8)(9) = 35280 N = 35.28 KN

6 0
4 years ago
Step 2 - Fill in the missing number:<br> 2<br> 1 -3 -10 24<br> a<br> a =
Sunny_sXe [5.5K]

Answer:

16

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Molly opened a bank account. She deposited $86.50 into her account every month for 20 months. She used $24.50 every month to pay
Andreas93 [3]

Hi!


Let's write an equation to solve this.


\frac{(86.50 - 24.50) · 20}{4} = ?

Solve

\frac{62 · 20}{4} = ?

\frac{1240}{4} = ?

310


The answer is $310.


Hope this helps! :)

-Peredhel

3 0
4 years ago
The hypotenuse of a right triangle measures 15 cm and one of its legs measures 4 cm.
Ann [662]

Answer:

14.5 cm

Step-by-step explanation:

Pythagorean theorem: a^2 + b^2 = c^2

c = hypotenuse (15)

to solve for b (other leg), the equation is  b^2 = c^2-a^2

15^2 - 4^2 = 209

\sqrt{209} = approx. 14.5

the other leg is (rounded to the nearest 10th) 14.5 cm

3 0
3 years ago
Total area=<br> Help me please thanks so much
Dafna1 [17]

The <em>surface</em> area of the parallelpiped is equal to 800 square units.

<h3>What is the surface area of a parallelpiped?</h3>

The <em>surface</em> area of the parallelpiped seen in the picture is equal to the sum of the areas of its six faces, which are combination of areas of quadrilaterals and triangles. There are four parallelograms and two squares. Thus, the surface area of the solid is:

A = 2 · 8 · 20 + 2 · 7 · 20 + 2 · 10²

A = 800

The <em>surface</em> area of the parallelpiped is equal to 800 square units.

To learn more on parallelpipeds: brainly.com/question/14950719

#SPJ1

5 0
2 years ago
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