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Fantom [35]
3 years ago
10

A NASA mathematician used a system of equations to determine the point in space where a satellite crossed paths with a massive p

iece of space debris. How many equations did he need? And how many variables were needed to find the exact location in space?
A) 3 equations with 2 variables

B) 2 equations with 2 variables

C) 2 equations with 3 variables

D) 3 equations with 3 variables
Mathematics
1 answer:
nikitadnepr [17]3 years ago
8 0

Answer:

Option D.

3 equations with 3 variables

Step-by-step explanation:

The coordinates of a point in space must necessarily have 3 components. One to describe the distance on the x axis, another to describe the distance on the y axis to the point, and a third to describe the distance on the z axis.

If we have three variables, then 3 equations are needed to solve the system. With less than 3 equations it would be impossible to solver the system.

Therefore the correct answer is option D.

3 equations with 3 variables

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Find the value of each variable. If you give the decimal value, round to the nearest tenth.
DiKsa [7]

u = 10.4 and v = 12

Solution:

In the given 2 sides of a triangle are 60°, 60°.

Sum of all the angles of a triangle = 180°

60° + 60° + third angle = 180°

⇒ third angle = 180° – 60° – 60°

⇒ third angle = 60°

All angles are equal, therefore the given triangle is an equilateral triangle.

⇒ All sides are equal in length.

⇒ v = 12

The line drawn from the top angle divides the triangle into two equal parts

and the line is perpendicular.

12 ÷ 2 = 6

Using Pythagoras theorem,

\text{Base}^2+\text{Opposite}^2=\text{Hypotenuse}^2

⇒ 6^2+\text{opposite}^2=12^2

⇒ 36+\text{opposite}^2=144

⇒ \text{opposite}^2=108

⇒ \text{opposite}=6\sqrt3=10.4

⇒ u = 10.4

Hence, u = 10.4 and v = 12.

7 0
3 years ago
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Karo-lina-s [1.5K]

Answer:

C

Step-by-step explanation:

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3 years ago
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A ball is thrown from an initial height of 6 feet with an initial upward velocity of 28/fts
vagabundo [1.1K]
Does this show answer like multiple choice
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Solve for the missing side
xenn [34]

Answer:

The answer would be

Sin 60°=x/14

X=7v3

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Anyone knows the number sequence of 7,8,15,23,38? ​
OLga [1]
Sequence
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For more sequences
38 + 23 = 61
Then
61 + 38 = 99
And so on the sequence continue
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