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Fittoniya [83]
2 years ago
15

2+4(x+1)-x2+4x+-x6+4x-x6+3x​

Mathematics
1 answer:
Nat2105 [25]2 years ago
5 0

Answer:

What is your question

Step-by-step explanation:

You might be interested in
PLS HELP ME !!!!! i am terrible at maths.
AlekseyPX

Answer:

b

Step-by-step explanation:

4 0
3 years ago
A study was conducted to determine whether magnets were effective in treating pain. The values represent measurements of pain us
amm1812

Answer:

Given:

Sham: n= 20,     x=0.44,   s=1.24,

Magnet:n= 20,  x =0.49,   s= 0.95

For Sham:

Sample size, n = 20

Sample mean = 0.44

Standard deviation = 1.24

For Magnet:

Sample size = 20

Sample mean = 0.49

Standard deviation = 0.95

The null and alternative hypotheses:

H0: s1²=s2²

H1: s1² ≠ s2²

a) To find the test statistics, use the formula:

\frac{s1^2}{s2^2}

\frac{1.24^2}{0.95^2} = \frac{1.5376}{0.9025} = 1.7037

Test statistics = 1.7037

b) P-value:

Sham: degrees of freedom = n - 1 = 20 - 1 = 19

Magnet: degrees of freedom = n - 1 = 20 - 1 = 19

The critical values:

[Za/2, df1, df2)], [(1 - Za/2), df1, df2]

f[0.05/2, 19, 19], f[(1 - 0.05/2), 19, 19]

f[0.025, 19, 19], f[0.975, 19, 19]

(2.526, 0.3958)

The rejection region:

Reject H0, if  F < 0.3958 or if F > 2.526

c) Conclusion:

Since the critical values of test statistic is between (0.3958 < 1.7037 < 2.526), we fail to reject null hypothesis H0.

There is insufficient evidence to to support the claim that those given a sham treatment have reductions that vary more than those treated with magnets

3 0
3 years ago
What is the unit price for 12 apples for $3.12?
Zigmanuir [339]

Answer:

The answer would have came out of 3.84615384615

Then round up the answer to 3.85.  So the unit price is $3.85

7 0
3 years ago
Read 2 more answers
Please help with homework
Sedbober [7]
Ashley should get her seeds at garden place as she gets the exact amount of seeds and spends the least amount of money.
first of all I divided 75 by the amount of seeds you get it a packet. then if that was a decimal I rounded it to the larger number (eg. 7.15 rounded to 8)
then I multiplied the cost by that number to get the amount of money itd cost.
so I got in order of the boxes(s=seeds)
75s=$18
80s=$18.4
84s=$21.84
80s=$20
so the best deal is Garden place
7 0
3 years ago
HELP PLZZ BTW I NEED THE WORK so plz include it if you do I will mark you brainliest
Sergeu [11.5K]

Answer:

C

C

C

I hope this help

5 0
2 years ago
Read 2 more answers
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