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bazaltina [42]
3 years ago
9

What is the result of subtracting the second equation from the first?

Mathematics
1 answer:
saul85 [17]3 years ago
7 0

Answer:

11x-8y=-9

Step-by-step explanation:

we have

8x-4y = -4 ----> First equation

-3x+4y=5 ----> Second equation

we know that

To subtract the 2nd equation from the first, negate all three of the second equation terms:  3x-4y=-5

and then adds this result with the first equation

8x-4y = -4\\3x-4y=-5\\-------\\8x+3x-4y-4y=-4-5\\11x-8y=-9

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9514 1404 393

Answer:

  A  1

Step-by-step explanation:

The cube containing 125 = 5³ blocks will have a edge dimension of 5 blocks. The perimeter of one square face will be 4 times the edge dimension of the face, so will be 4×5 blocks = 20 blocks.

If 20 blocks = 20 units, then the edge of one block is 1 unit. Its volume is 1 unit³, or 1.

The appropriate choice is (A) 1 unit³ for the block volume.

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3 years ago
The bird feeder on a pole measures +6 feet and there is a buried treasure chest at -4 feet. 0 is ground level. Determine which i
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4 0
3 years ago
Read 2 more answers
A woman weighs herself. Her mass is 43.4 kg and she is trying to increase .She successfully increases her mass by 8%. a) Work ou
-Dominant- [34]

Answer:

Increase in her mass = 3.472 kg

Her new mass = 46.872 kg

Step-by-step explanation:

Her original mass = 43.4 kg

Percentage increase in her mass = 8%

Increase in her mass = 8% of 43.4 kg

= 8/100 * 43.4 kg

= 0.08 * 43.4 kg

= 3.472 kg

Increase in her mass = 3.472 kg

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7 0
3 years ago
Use Kelly’s steps to simplify this expression.
pantera1 [17]
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7 0
3 years ago
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Find the fifth term in the sequence that is defined as follows a1=1. An=3an-1+2
faltersainse [42]

The fifth term in the sequence would be 161.

Step-by-step explanation:

We have to find the fifth term in the sequence an=3a(n-1)+2

Given that

a1 = 1  (that is the first term)

If we follow the formula, the value of every term depends on the value of immediate lower term. Therefore, the a2 can be calculated by putting 2 in place of n in above equation

a2=3a(2-1)+2

a2=3a1+2

a2=3(1)+2 as a1 = 1

a2=5

Similarly,

a3=3a(3-1)+2

a3=3a2+2

a3=3(5)+2 as a2 = 5

a3=17

and

a4=3a(4-1)+2

a4=3a3+2

a4=3(17)+2 as a3= 17

a4=53

and

a5=3a(5-1)+2

a5=3a4+2

a5=3(53)+2 as a4 = 53

a5=161

Therefore, the fifth term in the sequence would be 161.

Learn more:

The following links have more information about sequencing

brainly.com/question/7221312

Keywords: sequence, arithmetic series

#learnwithBrainly

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4 years ago
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