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Phoenix [80]
3 years ago
8

In the figure,what’s is m

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
7 0

Answer:

∠ DBE = 25.5°

Step-by-step explanation:

Given ∠ DBC = 90° and ∠ DBE + ∠ EBC = ∠ DBC, then

∠ DBE = ∠ DBC - ∠ EBC = 90° - 64.5° = 25.5°

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Find the work done by gas?
salantis [7]

The work done by the gas when the gas expands will be 567.65 ft-lb.

<h3>What is the work done for an isothermal process?</h3>

The Pressure is inversely proportional to the volume.

Let the initial pressure and initial volume be P₁ and V₁, and the final volume be V₂.

Then the work done by the gas will be

WD = P₁ V₁ ln (V₂ / V₁)

A quantity of the gas with an initial volume of 2 cubic feet and an initial pressure of 700 pounds per square foot.

The gas expands to a volume of 3 cubic feet.

Then the work done by the gas will be

WD = 700 x 2 x ln (3/2)

WD = 1400 x 0.405

WD = 567.65 ft-lb

The work done by the gas when the gas expands will be 567.65 ft-lb.

More about the work done for isothermal process link is given below.

brainly.com/question/4218306

#SPJ1

7 0
2 years ago
Pls help I’ll brainlest ASAP and add extra points
charle [14.2K]

Answer:

3 to 6 making 9 multiply by 4 giving 36

add 3 by 4 = 36

same

lmk of u hv questions

3 0
3 years ago
-4x-5y-z=18<br> -2x-5y-2z=12<br> -2x+5y+2z=4
arsen [322]

Answer:7

7

Step-by-step explanation:

6 0
3 years ago
Simplify 1-31 +6+ (4 - 1). 8.<br> 1.) 8<br> 2.) 13<br> 3.) 19<br> 4.) 24
Veronika [31]

Step-by-step explanation:

By rule of bodmas rule

= 1 - 31 + 6 + 3 × 8

= 1 - 31 + 6 + 24

= 1 - 31 + 5 + 24

= - 30 + 5 + 24

= - 25 + 24

= -1

Now without using bodmas rule

= 1 - 31 + 6 + (4 - 1). 8.

=-30+6+4+(4-1)×8

=-23+4+(4-1)×8

=-19+4+(4-1)×8

=-15+(4-1)×8

=-15+3×8

=-15+24

=-9

MARK AS BRAINLIST IF IT IS USEFUL

6 0
3 years ago
The following box plot shows the number of books sold each day at a store for 60 days. How many days did the bookstore sell 2 to
Oksi-84 [34.3K]
To answer this question we can see in the graph that the first quartile Q1 is in the value 2. That means that 25% of the days were sold 2 books or less. If there were 60 days in total, this means that less than two books were sold for 15 days.
 The third quartile Q3 has a value of 12. This means that 75% of the days (45 days) were sold 12 books or less.
 Then for 45 days less than 12 books were sold and you know that in 15 of those 45 days less than 2 books were sold.
 Finally, the days that sold between 2 and 12 books were
 RIC = 54-15 = 30 days

  The correct answer is the third option: 30 days
4 0
3 years ago
Read 2 more answers
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