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katen-ka-za [31]
3 years ago
12

CAN somebody plz plz help me with raios

Mathematics
1 answer:
Kaylis [27]3 years ago
5 0
I can help what are the problems
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What does x in this equation<br>2x-3=6​
sweet [91]

Answer:

x=4.5

Step-by-step explanation:

7 0
3 years ago
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In 2000, in order to reduce the unemployment rate, France mandated all employers with 20 or more employees to reduce the workwee
asambeis [7]

Answer:

We accept H₀ for a CI = 95 % we din´t find differences in the unemployment level

Step-by-step explanation:

p₀  = 12 %     p₀  = 0,12

From sample  p = 53/500     p = 0,106

Test Hypothesis

Null Hypothesis                                      H₀                       p = p₀

Alternative Hypothesis                         Hₐ                       p < p₀

p₀*n  = 0,12*500 = 60

q₀ * n = 0,88 * 500 = 440

Then the binomial distribution can be approximate to a normal distribution

The significance level  α = 0,05     CI = 95 %

We need to develop a one-tail test (to the left ) find p-value and compare it with α.

p(s) = ( p - p₀ ) / √ p*q /n

p(s) = 0,106 - 0,12 / √(0,12)*(0,88)/500

p(s) = - 0,014 / 0,015

p(s) = - 0,93

With this P score we find the area under the bell shape curve

p-value = 0,1762 and compare that area with α = 0,05

Then p-value > 0,05

Therefore we accept H₀

4 0
3 years ago
Can someone pls help me :))))
nirvana33 [79]

Answer:

side length each 5√2

Step-by-step explanation:

both legs have the same length, as the triangle is a 45 - 90 45

To find one side of the triangle us the cosine of an angle is equal to the ratio of the adjacent side to the hypotenuse.

cos(A)=adj/hyp

cos(A)=adj/10

adj=cos(A) * 10

adj = 5√2

5 0
3 years ago
Help me with 11 please I’m crying Perform indicated operations
Svetlanka [38]
\begin{gathered} h(x)=-4x+1 \\ g(x)=2x+2 \\ h(x)\cdot g(x)=(-4x+1)\cdot(2x+2) \\ \text{ Distributing:} \\ h(x)\cdot g(x)=(-4x)\cdot2x+(-4x)\cdot2+1\cdot2x+1\cdot2 \\ h(x)\cdot g(x)=-8x^2-8x+2x+2 \\ \text{ Combining similar terms:} \\ h(x)\cdot g(x)=-8x^2-6x+2 \end{gathered}

4 0
1 year ago
A medical researcher wishes to investigate the relationship between hours exercised and weight lost. The researcher randomly sam
nataly862011 [7]

Answer:

The researcher will conclude that there is a correlation between the number of hours worked out and the amount of pounds lost by people on the exercise program

Step-by-step explanation:

Here, we want to state what the conclusion of the researcher should be:

From the last part of the question, we can see that the test statistic is greater than the critical value

So what do we do in a case like this?

We can see that the researcher is trying to see if there is a correlation between hours worked out and the number of pounds lost over a specific period of time.

Now, let us form the null hypothesis;

The null hypothesis here H0 is that we do not have a correlation between number of hours spent working out and the amount of pounds lost

The alternative hypothesis here H1 is that there is a correlation between the number of hours spent working out and the amount of pounds lost

Since we have the value of the test statistic greater than the critical value, we reject the null hypothesis and accept the alternative hypothesis

So therefore, the researcher will conclude that there is a correlation between the number of hours worked out and the amount of pounds lost by people on the exercise program

3 0
3 years ago
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