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2 years ago

Why do scientists and mathematicians use radians instead of degrees

1 answer:

4 0

Answer: The radian is defined as the angle of a circle subtended by an arc equal in length to the radius. That definition is far less arbitrary than the definition of a degree so you could claim it is a better unit purely because of how it is defined.

Step-by-step explanation:

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Total piston displacement is given by the following formula: TT P.D.ED?LN 4 Where P.D. = piston displacement, in cubic inches D

Ede4ka [16]

Answer: ≈ 1696460.03

Step-by-step explanation:

Formula:

$P.D.=(\frac{\pi }{4})D^2LN$ ⇒ $\left(\frac{\pi }{4}\right)400^2\cdot 4.5\cdot 6$

Steps:

1. calculate pi and inset into equation

$=0.785398(400^2)(4.5)(6)$

2. calculate exponents

$=(0.785398)(160000)(4.5)(6)$

3 . multiply the rest

$=(125663.706144)(4.5)(6)$

$=(565486.677646)(6)$

4. divide by 2 to get the diameter

$=\frac{3392920.065877}{2}$

5. round to the nearest hundredth (2 decimal points)

$= 1696460.032938$ ≈ 1696460.03

Hope this helped!

7 0

2 years ago

54 3/11 as a decimal

Sergio [31]

54 3/11...

54 is ur whole number
3/11 = 0.27 with a line over the 27 because it is repeating

so ur answer would be : 54.27...with a line over the 27

6 0

3 years ago

NEEDs HELP AB ⊥ AC true or false idk i think it's false

jonny [76]

Perpendicular means the slopes are opposite inverse of each other
If line a is slope 2, the perpendicular line to Line a would have a slope - 1/2
Difference in y over difference in x gives slope. If they are opposite inverse values the lines are perpendicular. ( in this case the answer is true.)

4 0

2 years ago

Which of the following is a perfect square?

Nataly [62]

The second one seems about right.

7 0

2 years ago

Read 2 more answers

R=10(a+b) solve for b?

IrinaVladis [17]

Answer:

b=r/10 -a