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saw5 [17]
3 years ago
13

A) Write a rule for a polynomial with left end up and right end up behavior, and has a y-

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
7 0

Answer:

y = x^2 + 3

Step-by-step explanation:

The equation I put has the left end up, the right end up, and has a y-intercept at (0,3).

If this answer is correct, please make me Brainliest!

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Solve the following equation for x<br> 2x+6=3x−12x+6=3x−1
Rudik [331]

Answer: x=11/22

Step-by-step explanation: 2x+6=3x−12x+6=3x-1                                           2x+6=3x+−12x+6=3x+-1                                                                                       2x+6=(3x+−12x)+(6+-1)=3x                                                                     2x+6+9x=−9x+5+9x=3x+9x                                                                                   11x+6=5=12x                                                                                                 11x+12x=6+5                                                                                             22x/22=11/22                                                                                                       x=11/22                                                                                                                                                                                                                                                                                            

3 0
3 years ago
Consider a circle whose equation is x2 + y2 + 4x - 6y - 36 = 0. Which statements are true? Check all that apply.
kherson [118]

Answer: b & c

I got the answer right on my quiz

6 0
4 years ago
Read 2 more answers
(57 – 42) X-3 – 21<br><br> Help me out please
SpyIntel [72]

Answer:

1065

Step-by-step explanation:

57-42×-3-21

7 0
3 years ago
Nationally, patients who go to the emergency room wait an average of 7 hours to be admitted into the hospital. Do patients at ru
valina [46]
  1. For this study, we should use t-test and the null and alternative hypotheses would be given by H₀: μ = 7 and H₁: μ < 7.
  2. The test statistic is -1.941 and the p-value (0.0381) is <u>greater than</u> α = 0.01.
  3. Based on this, we should <u>fail to reject</u> the null hypothesis.
  4. Thus, the final conclusion is that the data suggest the population mean is not significantly lower than 7 at α = 0.01, so there is statistically insignificant evidence to conclude that the population mean waiting time to be admitted into the hospital from the emergency room for patients at rural hospitals is equal to 7 hours.

<h3>What is a null hypothesis?</h3>

A null hypothesis (H₀) can be defined the opposite of an alternate hypothesis (H₁) and it asserts that two (2) possibilities are the same.

<h3>How to calculate value of the test statistic?</h3>

The test statistics can be calculated by using this formula:

t=\frac{x\;-\;u}{\frac{\delta}{\sqrt{n} } }

<u>Where:</u>

  • x is the sample mean.
  • u is the mean.
  • is the standard deviation.
  • n is the number of hours.

For this study, we should use t-test and the null and alternative hypotheses would be given by:

H₀: μ = 7

H₁: μ < 7

t=\frac{6.3\;-\;7}{\frac{1.3}{\sqrt{13} } }\\\\t=\frac{-0.7}{\frac{1.3}{3.6056 } }

t = -0.7/0.3606

t = -1.941.

For the p-value, we have:

P-value = P(t < -1.9412)

P-value = 0.0381.

Therefore, the p-value (0.0381) is <u>greater than</u> α = 0.01. Based on this, we should <u>fail to reject</u> the null hypothesis.

Thus, the final conclusion is that the data suggest the population mean is not significantly lower than 7 at α = 0.01, so there is statistically insignificant evidence to conclude that the population mean waiting time to be admitted into the hospital from the emergency room for patients at rural hospitals is equal to 7 hours.

Read more on null hypothesis here: brainly.com/question/14913351

#SPJ1

4 0
2 years ago
What the expanded form of 8.65?
Stells [14]

Answer:

8     .60       .05

Hope it helps :D

btw pls mark brainlest

6 0
3 years ago
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