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Yanka [14]
3 years ago
12

choose the equation that shows a step in the process of completing the square on the given quadratic. y = x2 8x – 3 y = x2 8x 8

– 3 – 8 y = x2 8x 8 – 3 8 y = x2 8x 16 – 3 – 16 y = x2 8x 16 – 3 16
Mathematics
2 answers:
posledela3 years ago
3 0
Y = x^2 + 8x - 3
y = x^2 + 8x + (8/2)^2 - 3 - (8/2)^2
y = x^2 + 8x + 16 - 3 - 16
anastassius [24]3 years ago
3 0

Answer:

The next step will be : x^{2}+8x+16-3-16.

Step-by-step explanation:

we are given a quadratic equation as:

y=x^2+8x-3

now we have to find next step in the process for completing the square on the given quadratic

y=x^2+4^{2}+2\ \times x \times4-4^{2}-3

y=x^2+8x+16-3-16

Hence, the next step will be y=x^2+8x+16-3-16.


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The school that molly goes to is selling tickets to a choral performance. On the first day of ticket sales the school sold 6 sen
krek1111 [17]
The cost of a senior citizen ticket is $15 and the cost of a student ticket is $12.

How did I get this?
We know that 6 citizen tickets and 7 student stickers sold for $174 the first day. And 10 citizen tickets and 14 student tickets sold for $318 the second day.

1. create two equations out of this: C= citizen cost per ticket and S = student cost per ticket.

  6C + 7S = $174
10C + 14S = $318

2. Use process of elimination. Multiply the first equation by 2 because we want two variables to cancel out.

-12C - 14S = -$348
10C + 14S = $318
Combine like terms.

-2C = $30
Divide by -2 on both sides. The left side cancels out.

C = $30/-2
C = -$15 (In this case the negative doesn't matter)

C = $15 (cost of senior citizen ticket)

Plug the value of C into any of the two equations so we can get the value of S.

6($15) + 7S = $174
Distribute the 6 into the parenthesis.

$90 + 7S = $174
Subtract both sides by $90 and the left side will cancel out.

7S = $84
Divide both sides by 7.
S = $12

Student ticket: $12
Senior citizen ticket: $15




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3 years ago
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From least to greatest, the correct order is 1.2, 1.2011, 1.401, and 1.41.

Step-by-step explanation:

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