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lapo4ka [179]
3 years ago
13

Describe the energy transformations that occur when you burn a piece of wood

Mathematics
1 answer:
Nesterboy [21]3 years ago
3 0
The wood burns into an ash.

Chemical change.
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Use row operations to solve the system.
Aleks04 [339]

Answer:

x = 2, y = 7, z = 12

Step-by-step explanation:

x + y - z = -3 (1)

3x - y + z = 11 (2)

x - 4y + z = -14 (3)

add (1) and (2)

4x = 8 x = 2

add (1) and (3)

2x - 3y = -17

2(2) - 3y = -17

-3y = -17 - 4

-3y = -21

y = 7

Find z using any equation

x + y - z = -3

2 + 7 - z = -3

9 - z = -3

z = 12

3 0
3 years ago
Omgggggggg PLZ HELP MEH I REALLY NEED HELP :'( IM FAILING MATH AND THIS WILL REALLY HELP ALL BELOW IM BEGGING YOU
faltersainse [42]

Answer:

1. -2w-1 cuz when in parethese it all become negative.   2. factors of 32 is 1,2,4,8,16,32.  and factors of 24 is 1,2,3,4,6,8,12,24. and the way you should write 32k+24 is 4(8k+6)

Step-by-step explanation:

7 0
3 years ago
Determine whether the series is convergent or divergent. [infinity] n = 1 1 n√9 the series is a ---select--- p-series with p =
inna [77]

The series is a convergent p-series with p = 3

<h3>How to know it is a divergent or a convergent series</h3>

We would know that a series is a convergent p series when we have ∑ 1 np. Then you have to be able to tell if the series is a divergent p series or it is a convergent p series.

The way that you are able to tell this is if the terms of the series do not approach towards 0. Now when the value of p is greater than 1 then you would be able to tell that the series is a convergent series.

The value of \sqrt{9}= 3

The formular for this is

∑\frac{1}{n^p} \\

where n = 1

we know it is convergent because p is greater than 1. 3>1

Read more on convergent series here:

brainly.com/question/337693

#SPJ1

6 0
2 years ago
Input Output Which ordered pair needs to be removed in order for the mapping to represent a function? O (-3, -4) O (-2, -1) O (1
QveST [7]

Answer:

(-2,-1)

Step-by-step explanation:

5 0
2 years ago
In 30 seconds, a mountain biker goes up a 125-foot hill, then down 78 feet, and then back up a 32-foot hill. How much higher or
lana [24]

Answer:

79 foot apperantley

3 0
3 years ago
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