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Gnom [1K]
3 years ago
9

What is 30=8+4(z-2) step by step?

Mathematics
1 answer:
Stolb23 [73]3 years ago
7 0

30=8+4(z-2)

Distribute 4 through the parentheses

30=8+4z-8

Eliminate the opposites

30=4z

Swap the sides of the equation

4z=30

Divide both sides of the equation by 4

4z÷4=30÷4

Any expression divided by itself equals 1

z=30÷4

or write the division as a fraction

z=30/4

copy the numerator and denominator of the fraction

30=2x3x5

4=2x2

Write the prime factorization of 30

Write the prime factorization of 4

30=2          x3x5

4=2x2

    2

Line up the common factors in both lists

Copy the common factors

Since there is only one common factor, the common factor 2 is also the greatest common factor

30÷2/4÷2

  2

Divide 30 and 4 by the greatest common factor 2

15/4÷2

Divide the numbers in the numerator

15/2

Divide the numbers in the denominator

15/2

The simplified expression is 15/2

That's it. hope it wasn't too hard to understand?

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I do not get any of this thing
oksano4ka [1.4K]
<h3>Answer:  C)  5/2</h3>

==========================================================

Explanation:

The term "zero" is the same as "root".

The root of f(x) is found by replacing f(x) with 0 and solving for x.

f(x) = 4x-20

0 = 4x-20

0+20 = 4x

20 = 4x

4x = 20

x = 20/4

x = 5

The root of f(x) is 5. If you plugged in x = 5, then you'll land on f(5) = 0.

Your teacher then wants to know what value of k will have g(x) get the same root of 5. In other words, we need to find k that will allow g(5) = 0.

We'll replace g(x) with 0 and plug in x = 5. Solving for k leads to...

g(x) = -0.5x+k

0 = -0.5*5+k

0 = -2.5+k

0+2.5 = k

2.5 = k

k = 2.5

k = 5/2

6 0
2 years ago
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Alexandra [31]
55d+10
55/11=5.
10/5=2
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Mamont248 [21]
Honestly no idea... sorry
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3 years ago
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.
AysviL [449]

Answer:

Hypotenuse      legs

6 units       arrowBoth         5 units, 1 unit

5 units        arrowBoth        2 units, 3 units

8 units         arrowBoth       5 units, 2 units

3 units          arrowBoth       1 unit, 2 unit

Step-by-step explanation:

i got this because if u add

5+1= 6 units

2+3=5 units

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6 0
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Answer:

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Step-by-step explanation:

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