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vichka [17]
3 years ago
5

-9-13+2+13−9−13+2+13minus, 9, minus, 13, plus, 2, plus, 13.

Mathematics
1 answer:
nekit [7.7K]3 years ago
5 0

Answer:

-21

Step-by-step explanation:

comments

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Please help me with thissss
Evgesh-ka [11]

Answer:

a.) The sum of the weights of the two in insects is 0.0031 grams. (0.0031 grams)

b.) The fly is 0.0013 grams heavier than the gnat. (0.0013 grams)

Step-by-step explanation:

2.2 * 10^-3 = 2.2 * 1/1000 which is 2.2/1000.

9 * 10^-4 = 9 * 1/10000 = 9/10000

To add 9/10000 to 2.2/1000 we have to find the common denominator, which will be 10000.

So we do:

2.2/1000 * 10/10 = 22/10000

9/10000 + 22/10000 = 31/10000 = 0.0031.

The sum of the weights of the two in insects is 0.0031 grams.

To find how much heavier the fly is than the gnat we do:

22/10000 - 9/10000 = 13/10000 = 0.0013

The fly is 0.0013 grams heavier than the gnat.

7 0
3 years ago
A system of linear equations with more equations than unknowns is sometimes called an overdetermined system. Can such a system b
shepuryov [24]

Answer:

A. Yes, overdetermined systems can be consistent.

As, the system of equations below is consistent because it has a solution

x_{1}=2, x_{2}=4, x_{1}+x_{2}=6.

Step-by-step explanation:

We have,

'Over-determined system is a system of linear equations, in which there are more equations than unknowns'.

For e.g. Let us consider the system,

2x - 3y = 1

3x - 2y = 4

x - y = 1

Plotting these equations, we see from the graph below that,

The only intersection point is (2,1). Thus, x= 2 and y= 1 is the solution of this system.

Thus, over-determined system can be consistent.

According to the options,

Option C is not correct as,

x_{1}=2, x_{2}=4 implies x_{1}+x_{2}=2+4=6\neq 8.

Hence, option A is correct.

7 0
3 years ago
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The answer to it is (-5,13),(1,1),(2,-1)
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3 years ago
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Which of the following is a rational number?
Klio2033 [76]

Answer:

  √25

Step-by-step explanation:

  √25 = √(5²) = 5 . . . . a rational number

The other roots are not the roots of perfect squares, so are irrational.

5 0
3 years ago
What is the value of the 5 in the number 2.005?<br> 0.05<br> 0.5<br> 0.005<br> 5
Bogdan [553]

Answer:

0.005

Step-by-step explanation:

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3 years ago
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