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Stolb23 [73]
3 years ago
5

Please help, this is math.

Mathematics
2 answers:
damaskus [11]3 years ago
6 0

A number with a negative exponent means you go down. For ^-2, move the decimal to places to the left. So your answer should be 0.0389

musickatia [10]3 years ago
4 0

Its the second one :)

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A system of equations is shown below. y = –x – 3 5x + 2y = 9 What is the solution to this system?
erastovalidia [21]

Answer:

x=5\ and\ y=-8

The solution of the system can be given as (5,-8).

Step-by-step explanation:

Given system of equations:

y=-x-3

5x+2y=9

To solve the given system of equations:

Solution:

We will use substitution to solve the given system.

We will substitute the y values in terms of x from the equation y=-x-3 into the other equation to solve for x

Substituting y=-x-3 into 5x+2y=9.

We have:

5x+2(-x-3)=9

<em>Using distribution.</em>

5x-2x-6=9

<em>Combining like terms.</em>

3x-6=9

Adding 6 both sides.

3x-6+6=9+6

3x=15

Dividing both sides by 3.

\frac{3x}{3}=\frac{15}{3}

∴ x=5

<em>Plugging in x=5 into y=-x-3.</em>

We have,

y=-5-3

∴ y=-8

The solution of the system can be given as (5,-8).

4 0
3 years ago
Someone please help me. ASAP
gizmo_the_mogwai [7]

Answer: x=10

Step-by-step explanation:

1/5(x-2)=1/10(x+6)

1/5x -2/5=1/10x + 6/10

        +2/5             +2/5

1/5x =1/10x + 1

-1/10   -1/10  

1/10x= 1    divide both sides by 1/10

x= 10

3 0
3 years ago
in a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("Strictly less th
guajiro [1.7K]

Answer:

  least to greatest: {61, 61, 61, 178, 179}

Step-by-step explanation:

If the third-largest angle is 61°, the smallest three angles cannot be larger than 183°. Since the total of all angles must be 540°, and the total of the largest two cannot be greater than 179°×2 = 358°, the sum of the smallest three must be at least 540° -358° = 182°.

So, the possible sets of angles with the smallest 3 totaling 182° or 183° are (in degrees) ...

  {60, 61, 61, 179, 179} . . . . two modes

  (61, 61, 61, 178, 179} . . . . . one mode -- the set you're looking for

3 0
3 years ago
Read 2 more answers
What’s 10.546 divided by 52?
Marina CMI [18]

Answer:

The answer to 52 ÷ 10.546 is 0.1952962962960

8 0
2 years ago
A stack of 200 file folders is 5.125 inches tall what is the thickness of each folder?
pishuonlain [190]

Answer:

divide 5.125 by 1

Step-by-step explanation:

done bye

4 0
2 years ago
Read 2 more answers
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