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asambeis [7]
3 years ago
10

Please help asap question is attached

Mathematics
1 answer:
Ksju [112]3 years ago
5 0

Answer:

=(4²/3²)×(2³/3³)×1/4

=16/9×8/9×1/4

=32/81

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To the nearest 0.01 degree, what angle of descent (angle of depression) must a plane 50 horizontal miles from the airport and at
HACTEHA [7]
20,000÷50=
20000 \div 50 = 400ft
The plane needs to descend at 400 ft per mile.

At 40 degrees?
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3 years ago
A school custodian waxed the gymnasium floor that measured 20 feet by 20 feet. How many square feet did she have to wax?
Irina-Kira [14]
Hey there, all you do is multiply 20 by 20, 20×20=400. Therefore, the answer is 400 square feet.
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Un buzo realizó los siguientes descensos desde la superficie: Descenso 1: -25 m Descenso 2: -15 m Descenso 3: -25 m ¿A qué dista
dimulka [17.4K]

Answer:

no habla espanol

Step-by-step explanation:

6 0
3 years ago
Please help with this calculus problem!
ELEN [110]
\dfrac{\mathrm dQ}{\mathrm dt}=\dfrac{a(1-5bt^2)}{(1+bt^2)^4}
Q(t)=\displaystyle\int\frac{a(1-5bt^2)}{(1+bt^2)^4}\,\mathrm dt

Let t=\dfrac1{\sqrt b}\tan u, so that \mathrm dt=\dfrac1{\sqrt b}\sec^2u\,\mathrm du. Then the integral becomes

\displaystyle\frac a{\sqrt b}\int\frac{1-5b\left(\frac1{\sqrt b}\tan u\right)^2}{\left(1+b\left(\frac1{\sqrtb}\tan u\right)^2\right)^4}\sec^2u\,\mathrm du
=\displaystyle\frac a{\sqrt b}\int\frac{1-5\tan^2u}{(1+\tan^2u)^4}\sec^2u\,\mathrm du
=\displaystyle\frac a{\sqrt b}\int\frac{1-5\tan^2u}{\sec^6u}\,\mathrm du
=\displaystyle\frac a{\sqrt b}\int(\cos^6u-5\sin^2u\cos^4u)\,\mathrm du
=\displaystyle\frac a{\sqrt b}\int(6\cos^2u-5)\cos^4u\,\mathrm du

One way to proceed from here is to use the power reduction formula for cosine:

\cos^{2n}x=\left(\dfrac{1+\cos2x}2\right)^n

You'll end up with

=\displaystyle\frac a{16\sqrt b}\int(5\cos2u+8\cos4u+3\cos6u)\,\mathrm du
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=\dfrac a{32\sqrt b}(5\sin2u+4\sin4u+\sin6u)+C
Q(t)=\dfrac{at}{(1+bt^2)^3}+C
6 0
3 years ago
When y=75,x=1 over 2 what is the value of y when x is 2 and 1/4
Montano1993 [528]

Answer:

idk

Step-by-step explanation:

5 0
3 years ago
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