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butalik [34]
3 years ago
12

Please help asap. 50 pts

Mathematics
1 answer:
Mariulka [41]3 years ago
4 0
36y^2-84y-147=3(12y^2-28y-49)=3(12y^2-42y+14y-49)\\\\=3[6y(2y-7)+7(2y-7)]=3(2y-7)(6y+7)
\boxed{Answer:\ B.\ 3(2y-7)(6y+7)}

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What does this mean exactly?​
bekas [8.4K]

Answer: Choice B  y \le 0

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

Explanation:

They want to know what are all the possible y values here. The range is the set of all possible outputs of a function.

The largest y value is y = 0 which occurs at the vertex, in this case the highest point. There is no smallest y value as those arrows point downward forever.

So y is between negative infinity and 0, which means we write -\infty < y \le 0

Converting that to interval notation leads to (-\infty, 0]. Note the square bracket to include the endpoint.

The compound inequality -\infty < y \le 0 simplifies to y \le 0

One way to describe this particular relation's range is to say "The set of negative real numbers with 0 included".

Side note: The domain is the set of all possible x inputs. In this case, the domain is the set of all real numbers.

6 0
2 years ago
Find the unit rate with the second given unit in the denominator.
Korolek [52]
If 9 pizzas cost $67.50 that means that 1 pizza costs 67.50/9 = $7.5

Answer A is incorrect because of false prize of pizza.

B isn't correct because 1 pizza cost $7,5 and not 7,5 pizzas cost $1

C isn't answer because of both reasons from answer A and answer B

D is the answer because it says that you need to pay $7.5 per pizza.
8 0
3 years ago
Complete the synthetic division problem below.
olga_2 [115]
2 I 1  6   -16
   I      2    16
   --------------------
      1  8    0
so the quotient is x+8. A is the answer.
4 0
3 years ago
Read 2 more answers
Can you order this least to greatest, 385 km, 446,831 feet, 2,521,728 inches, 161,920 yards
loris [4]
To order these from the least to greatest you need to convert them all to one common unit of measurement. In this case I chose feet.
385 km= 1, 263, 123 ft
2, 521, 728 in= 210, 144 ft
161, 920 yards= 485, 760 ft
And of course 446, 831 feet equals itself. Now all you have to do is put them in the correct order!
Hope this helped :)
4 0
2 years ago
Evaluate the following expression for w=4. w^-3 =
slega [8]
W^-3
(4)^-3 = 1/(4)^3
1/64.

The solution is 1/64.
6 0
3 years ago
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