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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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Which graph shows a line with a slope of 2 and a y-intercept of 0?
Vikki [24]

Answer: C

Step-by-step explanation: graph C’s slope is 2x and has a y intercept of 0. This is the only right answer because A does not have a y intercept of 0, B’s slope is -2x, and D is not a function.

7 0
3 years ago
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an initial deposit of $200 is made into an account that pays 4.2% annual interest. What is a model to represent the balance in t
Sholpan [36]
You would use the equation y = A(1+r)^t 

A = Original amount = 200
r = interest rate = 0.042 (when converted from percent to decimal)
t = time = x 

Plug them in and you get the model: y = 200(1+0.042)^x 

or just simplify the parentheses to (1.042)
5 0
3 years ago
Among the youth that vape, what percentage smoke e-cigarettes with special flavorings? a 40% b 50% c 85% d more than 95%
Pepsi [2]

Answer:

d. more than 95%

Step-by-step explanation:

According to a survey carried out by the Food Drug Administration from 2016 to 2017, termed Population Assessment of Tobacco and Health, it was discovered that a high percentage of the youth population smoked e-cigarettes with special flavorings. Specifically, it was found that 96.1% of young people within the ages of 12 to 17 started their use of e-cigarettes with the flavored options.

As at the time when the report was being published, 97% of e-cigarette users reported having used flavored e-cigarettes in the past month. The above data shows that more than 95% of youths that vape have smoked e-cigarettes with special flavorings.

5 0
3 years ago
Which of the following equations could you solve by first adding six and then dividing by negative three? 3x - 6 = -9 6 - 3x = -
mrs_skeptik [129]

Answer: -3x-6=-9

Step-by-step explanation:

The proccedure shown in the problem is applied to solve for x and calculate its value.

One of the equations shown in the problem is:

-3x-6=-9

To solve for x you must_

- Add 6 to both sides of the equations:

-3x-6+6=-9+6

-3x=-3

- Then you must divide by -3:

\frac{-3x}{-3}=\frac{-3}{-3} \\x=1

Then the answer is: -3x-6=-9

7 0
4 years ago
•••PLEASE HELP•••
Vlad [161]

Answer:

So do 232133=12312+3242+43543-379454+56464+7845835745975873954-6739534765945465576385835348u5648548573896465657=1

Step-by-step explanation:

7 0
3 years ago
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