1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Serga [27]
3 years ago
6

Please help! how many imaginary roots?

Mathematics
1 answer:
olga55 [171]3 years ago
3 0
Yes what the person above me said
You might be interested in
The Hu Family goes out for lunch and the price for the meal is $57.The sales tax on the meal is 6% and the family also leaves a
PtichkaEL [24]

Answer:

$68.97

Step-by-step explanation:

57 x 0.06 = 3.42

57 + 3.42 = 60.42

57 x 0.15 = 8.55

60.42 + 8.55 = 68.97

8 0
3 years ago
What does Inductory mean
timofeeve [1]

Serving to induct or bring in; introductory

8 0
3 years ago
(3n-1)+(4-n) please answer my question!!!!!
prisoha [69]
Collect the like terms
So 3n-n=2n and -1+4=3
(3n-1)+(4-n)=2n+3
7 0
3 years ago
An article describes an experiment to determine the effectiveness of mushroom compost in removing petroleum contaminants from so
alexgriva [62]

Solution :

Let p_1 and p_2  represents the proportions of the seeds which germinate among the seeds planted in the soil containing 3\% and 5\% mushroom compost by weight respectively.

To test the null hypothesis H_0: p_1=p_2 against the alternate hypothesis  H_1:p_1 \neq p_2 .

Let \hat p_1, \hat p_2 denotes the respective sample proportions and the n_1, n_2 represents the sample size respectively.

$\hat p_1 = \frac{74}{155} = 0.477419

n_1=155

$p_2=\frac{86}{155}=0.554839

n_2=155

The test statistic can be written as :

$z=\frac{(\hat p_1 - \hat p_2)}{\sqrt{\frac{\hat p_1 \times (1-\hat p_1)}{n_1}} + \frac{\hat p_2 \times (1-\hat p_2)}{n_2}}}

which under H_0  follows the standard normal distribution.

We reject H_0 at 0.05 level of significance, if the P-value or if |z_{obs}|>Z_{0.025}

Now, the value of the test statistics = -1.368928

The critical value = \pm 1.959964

P-value = $P(|z|> z_{obs})= 2 \times P(z< -1.367928)$

                                     $=2 \times 0.085667$

                                     = 0.171335

Since the p-value > 0.05 and $|z_{obs}| \ngtr z_{critical} = 1.959964$, so we fail to reject H_0 at 0.05 level of significance.

Hence we conclude that the two population proportion are not significantly different.

Conclusion :

There is not sufficient evidence to conclude that the \text{proportion} of the seeds that \text{germinate differs} with the percent of the \text{mushroom compost} in the soil.

8 0
3 years ago
Are the ordered pairs below an arithmetic sequence or geometric
SashulF [63]

Answer:

the answer is (2, 45) geometric

3 0
3 years ago
Other questions:
  • CAN SOMEONE PLEASE HELP ME WILL GIVE THANKS AND BRAINLIEST ANSWER
    5·2 answers
  • 30 = x/5 <br><br><br><br>I need help with this asap a lot of points ​
    5·2 answers
  • K stands for a whole number.
    13·1 answer
  • I need the answers thanks :)
    15·1 answer
  • Is there a series of rigid transformations that could map ΔQRS to ΔABC? If so, which transformations could be used?
    13·2 answers
  • Plz help me and thanks so much
    14·1 answer
  • The circumference of heileen’s basketball is 30 inches. What is the approximate diameter of the basketball?
    11·2 answers
  • 3/x, 2/x-11. Find LCD
    5·1 answer
  • Write the denominator for each of the decimal numbers. (each answer, 1 point)
    10·1 answer
  • Which expression gives the number of magazines printed after t minutes ?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!