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4 years ago

Math question down below

Mathematics

2 answers:

Elza [17]4 years ago

6 0

The answer is 9 3/7 the last one

elena-14-01-66 [18.8K]4 years ago

6 0

The answer is the letter d or the 4th one

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What is the solution of x = 5 x = 13 x = 20 x = 328

Vlada [557]

Answer:22

Step-by-step explanation:

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3 years ago

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So yea just help this is the last one

Leto [7]

Answer:

C Because thats the only thing there is no doubt

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3 years ago

In studies examining the effect of humor on interpersonal attractions, McGee and Shevlin (2009) found that an individual’s sense

son4ous [18]

Answer:

The calculated value t = 2.038< 2.145 at 0.05 level of significance

Null hypothesis is accepted

There is the average rate is less than μ ≤ 4

Step-by-step explanation:

Step(i):-

The Population of the mean 'μ' =4

sample size 'n' = 16

sample mean 'x⁻' = 4.53

given sample standard deviation 's' = 1.04

level of significance α = 0.05

Step(ii):-

Null hypothesis:H₀ : There is no significance difference between two means

Alternative hypothesis : H₁: There is significance difference between two means

Test statistic

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

$t = \frac{4.53-4}{\frac{1.04}{\sqrt{16} } }$

t = 2.038

Degrees of freedom ν = n-1 = 16-1 =15

t₀.₀₂₅ = 2.145

Conclusion:-

The calculated value t = 2.038< 2.145 at 0.05 level of significance

Null hypothesis is accepted

There is the average rate is less than μ ≤ 4

6 0

3 years ago

Find the measure of the central angle that you would draw to represent 67% in a circle graph. Round your answer to the nearest d

natima [27]

Circle=360 so
67%=67% of 360

percent means parts out of 100 so
67%=67/100=0.67

'of' means multiply
67% of 360=0.67 times 360=241.2

round
241

answer is 241 degrees

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3 years ago

Graph the function. h(x) = -1/5x^2+2x

Tanya [424]

Answer:

Hello there I would love to assist but could you give me a little more info I think I know the answer but I want to make sure I got it 100% correct unless you cant give me more info ill just tell you what I think it is but if u can give me more info before I give u the answer to make sure its correct would be appreciated

Step-by-step explanation:

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3 years ago