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3 years ago

What is 12x-3+2x+13 equivalent to

Mathematics

2 answers:

storchak [24]3 years ago

7 0

Answer:

2(7x+5)

Step-by-step explanation:

Sonbull [250]3 years ago

7 0

Answer:

14x+10

Step-by-step explanation:

12x-3+2x+13

12x+2x+10

14x+10

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3 years ago

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3 years ago

A parasail is at 200.6 feet above the water. After 5 minutes, the parasail is at 120.8 feet above the water. What is the change

kow [346]

Answer:

Change in height of the parasail after 5 minutes = 79.8 feet.

Explanation:

Change in height = Absolute value of the differences of the initial height and final height.

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3 years ago

Vector u has a magnitude of 5sq rt 3 feet and is directed due west. Vector v has a magnitude

Vikki [24]

The magnitude and the direction angle for the resultant vector are 10N and 120degrees respectively

The formula for calculating the resultant vector is expressed as:

$R^2 = u^2 + v^2\\R =\sqrt{u^2+v^2}$

Given the following distances:

u = -5√3 feet (west direction)

v = 5 feet

Substitute the given values into the formula above;

$R=\sqrt{(5\sqrt{3} )^2+5^2} \\R=\sqrt{(25 \times 3)+25}\\R=\sqrt{75 + 25}\\R=\sqrt{100}\\R = 10 feet$

The magnitude of the resultant vector is 10feet

Get the direction:

$\theta = tan^{-1}\frac{y}{x} \\\theta = tan^{-1}\frac{5}{-5\sqrt{3} }\\\theta =tan^{-1}\frac{-1}{\sqrt{3} }\\\theta = -60^0$

Since tan is negative in the second quadrant, hence;

$\theta = 180 - 60\\\theta = 120^0$

Hence the magnitude and the direction angle for the resultant vector are 10N and 120degrees respectively.

Learn more here: brainly.com/question/5177683

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3 years ago

8.513 - 2.545 = ? <br><br> SHOW WORK <br><br> WILL GIVE BRAINLIEST PLEASE

Troyanec [42]

Answer:

5.968

Step-by-step explanation:

8.513

- 2.545

5.968

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3 years ago