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stiv31 [10]
2 years ago
7

Assignment Have to do in class Pre-Algebra

Mathematics
2 answers:
Fittoniya [83]2 years ago
7 0

Answer:

1.  3z+6

2. 8z-1

3. 6k+24

4. 12x+24

5. 3b-12

Step-by-step explanation:

maksim [4K]2 years ago
4 0

Answer:

12

Step-by-step explanation:

3(b - 4)

b-4=4

4x3=12

Answer 12

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What we know:
Carpet cleaner a charges $28.25 plus $18 a room. Carpet cleaner B charges $19.85 Plus $32 a room.

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skelet666 [1.2K]

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How many square feet are there? This is an incomplete question.

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30 POINTS!!!
Cloud [144]

Answer:

A, C, & D

Step-by-step explanation:

A square root has the form \sqrt[2]{x}  = x^{1/2} and can be represented in exponential form. Let's convert all the expressions to \sqrt{x} this form. 4 square root 5 is 4\sqrt{25} =\sqrt{16*5}=\sqrt{80}

A. 2\sqrt{20} =\sqrt{4*20}=\sqrt{80}

B. 6^{1/2}-5^{1/2} =\sqrt{6}-\sqrt{5}

C. 3*5^{1/2}+5^{1/2} =3\sqrt{5}+\sqrt{5}=4\sqrt{5}=\sqrt{16*5}=\sqrt{80}

D. 4*5^{1/2}=4\sqrt{5}=\sqrt{16*5}=\sqrt{80}

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