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insens350 [35]
4 years ago
11

The work of a student to solve the equation 4(2x − 4) = 8 + 2x + 8 is shown below:

Mathematics
2 answers:
kirill [66]4 years ago
8 0

Answer:

The answer is B. Step 2; 8x − 16 = 16 + 2x

Hope This Helps!

shusha [124]4 years ago
4 0
In step two. If we look on the left side of the equation in the first step, it reads 4(2x-4). When a number is multiplying an expression in brackets, we have to multiply every term in the brackets by the number in front of the brackets. In this case, it would be 4*2x + 4*(-4), which is 8x - 16. So the correct option would be the second (8x-16=16+2x) (the right side of the eqtn was 8+2x+8 and if we combine like terms we get 16+2x)
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serg [7]
The first thing you should do in this case is to compose both functions:
 f (x) = x + 7
 g (x) = 1 / (x-13)
 Making the composition
 f (g (x)) = (1 / (x-13)) + 7
 f (g (x)) = (7 (x-13) +1) / (x-13)
 Answer:
 The domain of the function is:
 x other than 13
 (option 4)
4 0
3 years ago
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EASY POINTS (attached)
solong [7]
Answer for the first one - it's complicated, but that maths is correct

I kind of cheated and did it a different way than they'd expect. By doing 24 squared, that gives you 576. 

since both angles are 45 degrees, then the sides are equal lengths. Therefore x squared times 2 = 576.

Because of this, x squared = 576 divided by 2, which equals 288.
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5 0
4 years ago
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Can I Get A Little Help Here?
Musya8 [376]
Hey there :)

We know the formula for simple interest is 
I = prt
{ The picture includes what each stands for }

Lehena:
Initial amount = $100
Interest rate = 2.5% = \frac{2.5}{100} = 0.025
Time = 3 years
I = ( 100 )( 0.025 )( 3 )
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Total = $100 + $7.5 = $107.5

Marty:
Initial amount = $100
Interest rate = 2% = \frac{2}{100} = 0.02
Time = 3 years
I = ( 100 )( 0.02 )( 3 ) 
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Total = $100 + $6 = $106

How much more than Marty did Lehena receive?
= Total Amount of Lehena - Total Amount of Marty
= 107.5 - 106
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Your answer will be option B) $1.50

7 0
3 years ago
A fraction reduces to 36. If its denominator is 6x5, what is its numerator?
olchik [2.2K]
If you would like to find the numerator of a fraction, you can do this using the following steps:

denominator ... 6 * 5 = 30
numerator ... x = ?

36 = numerator / denominator
36 = x / 30
x = 36 * 30
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The correct result would be 1080.
4 0
3 years ago
How to prove that a shape is a square on the coordinate plane?
Goshia [24]
If a quadrilateral has four congruent sides and four right angles, then it's a square, and also If two consecutive sides of a rectangle are congruent, then it's a square.

Glad I could help, Have a great day!
5 0
3 years ago
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