3 years ago

Which is equivalent?

Mathematics

1 answer:

Arlecino [84]3 years ago

6 0

Steps to simplify:

(2x + 3)(x - 7)

~Use FOIL to multiply

(2x * x) + (2 * -7) + (3 * x) + (3 * -7)

~Simplify

=2x² - 14x + 3x - 21

~Combine Like Terms

2x² + (-14x + 3x) - 21

~Simplify

2x² - 11x - 21 (Option 2)

Best of Luck!

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mariarad [96]

Answer:

B its B

Step-by-step explanation:

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3 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

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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

What is 8% of 1125?

11111nata11111 [884]

Answer:

Step-by-step explanation:

1125/100=11.25

11.25x8=90

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3 years ago

Suppose the diameter of a circle is \color{green}{6}6start color green, 6, end color green units. What is its circumference?

inessss [21]

Answer:

C = 6pi units

C is approximately 18.84 units

Step-by-step explanation:

The circumference of a circle is given by

C = pi *d

The diameter is 6 units

C = 6*pi units

If we approximate pi by 3.14

C = 6*3.14

C = 18.84 units

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3 years ago

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SpyIntel [72]

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3 years ago

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