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Zarrin [17]
3 years ago
8

I need help solving this by elimination. 3x-6y+5z=1 x+4y-4z=13 x-3y-6z=-19

Mathematics
1 answer:
Tanzania [10]3 years ago
5 0

Answer:

x=6,y=4,z=2

Step-by-step explanation:

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Is it 2 different questions or just one?
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2 years ago
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Can someone help me with this question?????????
pishuonlain [190]
Area of the circle can be calculated using the following rule:
area = pi*(radius)^2

For the first circle:
We are given that:
area = 1040.9 square units ....> I

For the second circle:
We are given that:
radius = 27 units
Therefore:
area = pi * (27)^2 = 2290.221044 square units ....> II

For the third circle:
We are given that:
circumference = 87.92 units
Therefore:
circumference = 2*pi*radius = 87.92
radius = 13.99 units
area = pi*(13.99)^2 = 615.12799 square units ...> III

For the fourth circle:
We are given that:
diameter = 19 units
Therefore:
radius = 19/2 = 9.5 units
area = pi*(9.5)^2 = 283.528 square units ....> IV

Based on the above, the order according to increasing area would be:
IV , III , I , II

hope this helps :)
4 0
3 years ago
Solve for x round to the nearest tenth of a degree,if necessary.​
Ostrovityanka [42]

Answer:

Solution given:

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<u>x=39.3</u>°

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kap26 [50]
7 is the answer, you have to divide 475 by 78 and you get 6.08974358974359 but you round it up to 7 to make sure you have enough buses
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Answer:

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Step-by-step explanation:

7 0
3 years ago
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