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Amiraneli [1.4K]
3 years ago
15

Factor the expression completely.

Mathematics
1 answer:
netineya [11]3 years ago
3 0

Answer:

C. 2(2x + 3)(2x - 3)

Step-by-step explanation:

8 {x}^{2}  - 18 \\  = 2 \times 4 {x}^{2}  - 2 \times 9 \\  = 2(4 {x}^{2}  - 9) \\  = 2 \{( {2x})^{2}  - ( {3)}^{2}  \} \\  = 2(2x + 3)(2x - 3) \\

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ValentinkaMS [17]
12x-27=2x+12
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10x=39
x=3.9
5 0
3 years ago
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I need 1-5 and 8 and 9 solved
meriva

Answer:

1. A

2. H

3.B

4. H

5. A

Those are the answers

Step-by-step explanation:

1. 30 - 2(-8)= 46

2. BODMAS applied 6-7 =-1

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2 years ago
A scientist needs 60 liters of a 40​% acid solution. He currently has a 20 % solution and a 50 % solution. How many liters of ea
Stella [2.4K]

percent ---------------- quantity

Acid type I 60.00% ---------------- x liters

acid type II 30.00% ------ 60 - x liters

Mixture 40.00% ---------------- 60

Total 60 liters

60.00% x + 30.00% ( 60 - x ) = 40.00% * 60

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60 x + 1800 - 30 x = 2400

60 x - 30 x = 2400 - -1800

30 x = 600

/ 30

x = 20 liters 60.00% Acid type I

40 liters 30.00% acid type II

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3 years ago
A patient is to receive 1.5 grams (g) of an antibiotic in 3 equal
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1.5 g = 1500 mg

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3 years ago
How do you do this ​
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You square it so for example the first one would be 1
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