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Elza [17]
2 years ago
7

Express 4x^2 − 12x in the form (2x + a)^2 + b.

Mathematics
1 answer:
gladu [14]2 years ago
8 0

Answer: (2x-3)^2-9\\

a=-3

b=-9

Step-by-step explanation:

4x^2-12x=(2x)^2-2*2x*3+9-9\\=(2x-3)^2-9\\

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Help quick pls lol I’m doing my homework and it has to be due in 5 minutes
snow_tiger [21]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
A) how many ways are there to choose 10 players to take the field?
Kruka [31]

A. C(13, 10) = 13! = 13·12·11 = 13 · 2 · 11 = 286.C(13, 10) = 13! = 13·12·11 = 13 · 2 · 11 = 286.

B. P(13,10)= 13! =13! =13·12·11·10·9·8·7·6·5·4. (13−10)! 3!

C. f there is exactly one woman chosen, this is possible in C(10, 9)C(3, 1) =

10! 3!

9!1! 1!2! 10! 3!

8!2! 2!1! 10! 3!

7!3! 3!0!

= 10 · 3 = 30 ways; two women chosen — in C(10,8)C(3,2) =

= 45·3 = 135 ways; three women chosen — in C(10, 7)C(3, 3) =

= 10·9·8 ·1 = 120 ways. Altogether there are 30+135+120 = 285 1·2·3

<span>possible choices.</span><span> 
</span>

  


5 0
3 years ago
Two boys are throwing a baseball back and forth. The ball is 4 ft above the ground when it leaves one child’s hand with an upwar
AleksandrR [38]
The answer to this question is A, 12. Hope this helps.
3 0
3 years ago
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What is the value of |5| - | -5| - (-5)? The solution is​
Elis [28]

Answer:

5

Step-by-step explanation:

when we simplify it we get 5-5+5 which equals 5

7 0
3 years ago
A total of 60 students in your cousin's school are taking Spanish class this year. This is 25% more than the number of students
alina1380 [7]
Since 25% is 1/4, you multiply 60 by 1/4 to get how many students took Spanish class last year. So, 60 times 1/4 is 60/4, which is 15. Then you subtract 15 from 60 to get 45. So, 45 students took Spanish class last year.
7 0
3 years ago
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