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Reil [10]
2 years ago
10

X²=9 determine if x belongs to Q or belongs to Q dash​

Mathematics
1 answer:
Elis [28]2 years ago
4 0

x = 3 is the answer can you pls add me brainliest answer

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If 4 bunnies can eat all the crops in a garden in 10 hours, how long will it take 5 bunnies to eat the same crops?
worty [1.4K]

Answer:

12.5 hours

Step-by-step explanation:

10 / 4 = 2.5

2.5 * 5 = 12.5

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Will a geometric figure and its rotated image always,sometimes,or never have to same perimeter?
mash [69]
They will have the same Perimeter, unless you shrink or grow the image then nothing with change
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You own a townhome valued at $232,088, but still owe $165,111 on the loan. You also have $7,342 in savings and a balance of $2,1
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2 years ago
A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 419 gram setting. It is
Dahasolnce [82]

Answer:

The calculated t- value = 1.09 > 3.19 at 0.025 level of significance

Null hypothesis is rejected

There is sufficient evidence to support the claim that the bags are underfilled

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given the mean of the Population(μ)  = 419 grams

The sample size 'n' =19

Given mean of the sample x⁻ = 412

Given variance of the sample S² = 784

                                                 S = √784 = 28

<u><em>Step(ii)</em></u>:-

<u><em>Null hypothesis: H₀</em></u>: There is no sufficient evidence to support the claim that the bags are underfilled.

<u><em>Alternative hypothesis: H₁:</em></u>

There is sufficient evidence to support the claim that the bags are underfilled.

Test statistic

                     t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }

                    t = \frac{412 -419}{\frac{28}{\sqrt{19} } }

                   t = -1.09

                 |t| = |-1.09|

<em>Degrees of freedom   ν = n-1 = 19-1 =18</em>

<em>t₀.₀₂₅ =  3.19</em>

<u><em>Final answer:</em></u><em>-</em>

The calculated t- value = 1.09 > 3.19 at 0.025 level of significance

Null hypothesis is rejected

There is sufficient evidence to support the claim that the bags are underfilled

                   

8 0
3 years ago
Please Help (algebra)​
Talja [164]

Answer:

don't know sorry babe

Step-by-step explanation:

8 0
3 years ago
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