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NemiM [27]
3 years ago
13

Solve each linear-quadratic system algebraically

Mathematics
1 answer:
shusha [124]3 years ago
7 0
For the first one, Y-5=(x-2)^2. First you multiply x-2•X-2, which is x^2-4x+4. Lastly, you subtract -5 from both sides so the equation would look like Y=x^2-4x+9.
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The drama club has sold 942 tickets to their play if their theater seats 57 in each row how many full rows were there be how man
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999 if you are adding
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2 years ago
David has been tasked with tracking the number of bagels sold (y) at freddy's 24-hour bagel shop from 12: 00 am (x= 0) to 12: 00
ICE Princess25 [194]

Step-by-step explanation:

let say he sold 5 bagels then he would sell 5 bagels

12-5=7 , b=7

replace in 12-5=7

b=12-s

8 0
3 years ago
An amusement park would like to determine if they want to add in a new roller coaster. In order to decide whether or not they sh
Rzqust [24]

Using the z-distribution, it is found that the 90% confidence interval is given by: (0.6350, 0.6984).

<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which:

  • \pi is the sample proportion.
  • z is the critical value.
  • n is the sample size.

In this problem, we have a 90% confidence level, hence\alpha = 0.9, z is the value of Z that has a p-value of \frac{1+0.9}{2} = 0.95, so the critical value is z = 1.645.

The sample size and the estimate are given by:

n = 600, \pi = \frac{400}{600} = 0.6667

Hence, the bounds of the interval are given by:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6667 - 1.645\sqrt{\frac{0.6667(0.3333)}{600}} = 0.6350

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6667 + 1.645\sqrt{\frac{0.6667(0.3333)}{600}} = 0.6984

The 90% confidence interval is given by: (0.6350, 0.6984).

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

5 0
2 years ago
Which equation could have been used to create this function table?
Ierofanga [76]
It would be c. y = x because if you plug in the numbers, it would be true
8 0
3 years ago
Read 2 more answers
1 2 4 3 6 8 7 14 16? whats the next term in this sequence?
ANEK [815]
The next term in this sequence would be 18.
8 0
3 years ago
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