3 years ago

Add these polynomials and simplify. Enter your response in standard form.

Mathematics

2 answers:

lyudmila [28]3 years ago

7 0

Answer:

5x^7+4x^4-2x^2-4x-10

Step-by-step explanation:

hope this helps

Travka [436]3 years ago

6 0

Answer:

Step-by-step explanation: Your not the boss of me!!!!

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What is the solution? 2x+y=-3

OLEGan [10]

2x+y+3=0
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2 years ago

A woman walks due west on the deck of a ship at 3 mi/h. The ship is moving north at a speed of 22 mi/h. Find the speed and direc

Minchanka [31]

Answer: The speed is 22.2 mi/hr and woman is 8° north relative to the surface of the water.

Step-by-step explanation:

Since we have given that

Speed at which woman walks due west = 3 mi/hr

Speed at which ship moving due north = 22 mi/hr

Now it forms "Pythagorus theorem":

So, it becomes,

$H^2=B^2+P^2\\\\H^2=3^2+22^2\\\\H^2=9+484\\\\H^2=493\\\\H=\sqrt{493}\\H=22.20\ mi/hr$

And the direction of the woman relative to the surface of the water is given by

$\theta=\sin^{-1}x(\dfrac{3}{22.2})=7.76\approx 8^\circ$

Hence, the speed is 22.2 mi/hr and woman is 8° north relative to the surface of the water.

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3 years ago

Use the Law of Cosines to find the missing angle. In triangle FGH, HF = 16 ft, FG = 23 ft, and m∠F = 52°. Find the measure of f.

ivolga24 [154]

F = 18 ft.

The law of cosines states
c² = a² + b² - 2ab cos C

Using our information, we have
c² = 23² + 16² - 2(23)(16)cos 52
c² = 529 + 256 - 736cos 52
c² = 785 - 736cos 52
c² = 331.8732

Taking the square root of both sides, we have
c = √331.8732 = 18.22 ≈ 18

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2 years ago

Which factors affect friction between two solid surfaces? Select two options. the weight of the objects the surface area of the

andreev551 [17]

Answer:

a and d

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2 years ago

-4x = 16 a -64 b 4 c 20 d-4

cricket20 [7]

-4× = 16 answer: -4

Step-by-step explanation:

-4 × -4 = 16

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2 years ago