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boyakko [2]
2 years ago
6

PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!

Mathematics
2 answers:
melisa1 [442]2 years ago
6 0

answer:

y = 114°    and   x = 120°

step-by-step explanation:

part A:

  • one inner angle: 51°
  • second inner angle: (180°-87°) = 93°
  • third inner angle: (180°-30°) = 150°
  • fourth, beside y angle: 360° - 150° - 93° - 51° = 66°
  • then y = 180°  - 66°  = 114°

part B:

  • there are 6 sides, so inner angle: (6-2)*180 = 720°
  • 160° + 123° + 107° + 90° + x + x = 720°
  • 2x + 480° = 720°
  • 2x = 720° = 480°
  • 2x = 240°
  • x = 120°
lana [24]2 years ago
3 0

#1

Let the angle beside y be x

\\ \rm\hookrightarrow x+51+(180-87)+(180-30)=360

\\ \rm\hookrightarrow x+51+93+150=360

\\ \rm\hookrightarrow x+294=360

\\ \rm\hookrightarrow x=66

  • y=180-66=114°

#2

\\ \rm\hookrightarrow 2x+123+107+160+90=720

\\ \rm\hookrightarrow 2x+480=720

\\ \rm\hookrightarrow 2x=240

\\ \rm\hookrightarrow x=120

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A projectile is fired with muzzle speed 250 m/s and an angle of elevation 45° from a position 30 m above ground level. Where doe
qaws [65]

The projectile's horizontal and vertical positions at time t are given by

x=\left(250\dfrac{\rm m}{\rm s}\right)\cos45^\circ\,t

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where g=9.8\dfrac{\rm m}{\mathrm s^2}. Solve y=0 for the time t it takes for the projectile to reach the ground:

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In this time, the projectile will have traveled horizontally a distance of

x=\dfrac{250\frac{\rm m}{\rm s}}{\sqrt2}(36.2458\,\mathrm s)\approx6400\,\mathrm m

The projectile's horizontal and vertical velocities are given by

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At the time the projectile hits the ground, its velocity vector has horizontal component approx. 176.77 m/s and vertical component approx. -178.43 m/s, which corresponds to a speed of about \sqrt{176.77^2+(-178.43)^2}\dfrac{\rm m}{\rm s}\approx250\dfrac{\rm m}{\rm s}.

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3 years ago
HELP PLEASE I NEED THIS DONE
Oduvanchick [21]

Answer:

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Volume for cylinders : V = pi*r^2*h

Volume for cones : V = pi*r^2*(h/3)

Since we know the radius (r) is 2 and the height is 10 and 3 for the cylinder and cone respectively, all we do is plug in.

Volume for cylinder is about 125.7ft^3

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8 0
3 years ago
Find the value of x using the measures of the two given adjacent
asambeis [7]
3x+ 54=180
straight angle is 180
So just solve the equation.
subtract 54 on both sides.
126=3x
divide that by 3, and you get 42.
check You answer by multiplying 42 And 3, Which basically Is 126
and then 126+54
which is then 180
7 0
3 years ago
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