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Wewaii [24]
3 years ago
9

Help! Thanks!!!!!!!!!!!

Mathematics
1 answer:
Harrizon [31]3 years ago
6 0
The standard form is (x - h)2<span> = 4p (y - k), where the focus is (h, k + p) and the directrix is y = k - p. If the </span>parabola<span> is rotated so that its vertex is (h,k) and its axis of symmetry is parallel to the x-axis, it has an </span>equation<span> of (y - k)</span>2<span> = 4p (x - h), where the focus is (h + p, k) and the directrix is x = h - p.</span>
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Persons having Raynaud's syndrome are apt to suffer a sudden impairment of blood circulation in fingers and toes. In an experime
Citrus2011 [14]

Answer:

There is enough evidence to say that the true average heat output of persons with the syndrmoe differs from the true average heat output of non-sufferers.

Step-by-step explanation:

We have to perform a hypothesis test on the difference between means.

The null and alternative hypothesis are:

H_0: \mu_1-\mu_2=0\\\\H_a: \mu_1-\mu_2

μ1: mean heat output for subjects with the syndrome.

μ2: mean heat output for non-sufferers.

We will use a significance level of 0.05.

The difference between sample means is:

M_d=\bar x_1-\bar x_2=0.63-2.09=-1.46

The standard error is

s_{M_d}=\sqrt{\sigma_1^2/n_1+\sigma_2^2/n_2}=\sqrt{0.3^2/9+0.5^2/9}=\sqrt{ 0.038 } \\\\ s_{M_d}=0.194

The t-statistic is

t=\dfrac{M_d}{s_{M_d}}=\dfrac{-1.46}{0.194}=-7.52

The degrees of freedom are

df=n_1+n_2-2=9+9-2=16

The critical value for a left tailed test at a significance level of 0.05 and 16 degrees of freedom is t=-1.746.

The t-statistic is below the critical value, so it lies in the rejection region.

The null hypothesis is rejected.

There is enough evidence to say that the true average heat output of persons with the syndrmoe differs from the true average heat output of non-sufferers.

5 0
3 years ago
What is overlapping set​
Westkost [7]

Answer:

two sets are said to be overlapping if they contain at least one element in common A=(1,2,3,4)and B =(4,7,1,9)are said to be overlapping sets.

Step-by-step explanation:

please answer my question I answer your question

(xii) NH₂ + Cl₂ →→→→NH₂CI+ N₂

(xiv) NaOH + Cl₂ →→ NaCl + NaCIO + H₂O

" (vi) CH, + 0,— CO, + H,0

xviii) C₂H₂ + O₂2 CO₂ + H₂O

(xx) Na + H₂O → NaOH + H₂

A (xxii) PbO₂ PbO + 0₂

xxiv) NH3 + CuO →→→ → N₂ + H₂O + Cu

xxvi) H₂S + Cl₂ →→→ HCI + S

xviii) H₂S + H₂SO4 → H₂O + SO₂ + S

(xxx) C + HNO3 → CO₂ + NO₂ + H₂O

6 0
3 years ago
What is the value of the discriminant, b2 − 4ac, for the quadratic equation 0 = x2 − 4x + 5, and what does it mean about the num
Aleksandr-060686 [28]
So discriminant gives us 3 possibilites connected with result of the equation b^2-4ac. If it is bigger than zero, there are 2 solutions, if answer is exactly 0, then there is one answer and if the number is lower than 0, there are no solutions.

Discriminant of your quadratic equation is (-4)^2-4*1*5=16-20=-4, so there are no solutions.
3 0
3 years ago
Read 2 more answers
Melody works at a local Burger King restaurant. Her regularly hourly wage is $9.70. If she regularly works 40 hours per week, wh
Brut [27]

Answer: $20, 176

Step-by-step explanation: All you have to do is multiply how much she gets paid per hour by the number of hours that she works so it would just be 9.70*40 which equals 388. Then you have to multiply that answer by the number of weeks in a year so it would be 388*52 and your final answer would be $20, 176.

7 0
3 years ago
Read 2 more answers
If a 12 ounce glass of ale contains 124 calories, how many calories are in 10 ounces?
Anestetic [448]
Answer

103.333333333

Explanation

Since 12oz of ale contains 124 calories, you have to divide 124 by 12 to find how many calories are in 1 oz of ale. then you multiply 10.33 by 10 to find how many calories are in a 10oz glass of ale.
5 0
3 years ago
Read 2 more answers
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