Answer:
The answer is 0.9599.
Explanation:
mu (sample) = mu = 8.4
s.d. (sample) = 1.8/ sq. rt. 40
P( greater than 8.1) = (8.9-8.4)/(1.8/ sq. rt. 40)
Let x be the mean time for the 40 mechanics
Standardize the mechanics: (8.9-8.4)/(1.8/ sq. rt. 40) = 1.75 = Z
P( x > 8.9) = P(Z > 1.75), this means the area to the right of Z = 1.75.
Then you need to look in the table of the Normal distribution, Z(1.75) =0.9599
Through their noses like most dogs
Answer:
Jenny told water freezes at zero degree Celsius.
Work and play are two usually conflicting things which should be carefully monitored and balanced in order for one to live a happy and successful life. Although work is necessary to be successful in life, too much work can result in exhaustion and loss of happiness in life. Working is needed, throughout one’s entire life, both to surpass obstacles and to achieve one’s goals; even students, whose jobs are school, are expected to work and reach towards their ambitions. However, play is necessary to maintain one’s happiness, and those who devote all their time to work and none to play often experience dissatisfaction and depression despite any and all achievements they attain. Human existence often focuses around enjoyment of life; in order to enjoy life, people must be allowed time to ‘play,’ to enjoy themselves even if it is not ‘productive.’ At the same time, playing all the time will leave no room for work, and this can result in loss of goals, achievements, and even other necessary things to survive. Work is needed to get through life, earn money, and be successful; yet too much work will result in one being overwhelmed and depressed. Playing is needed to live a fulfilling life and to be happy; yet too much play can leave someone without more necessary things or achievements to get them through life. Because of this, is can be concluded that someone must maintain a healthy balance between time spent working and time spent playing to be both happy and successful.
^ this is the most professional-sounding essay I could come up with off the top of my head... of course you could just utilize the main ideas if you want. Hope this helps at least in some way :)
First step cross multiplying.
6.2/2x+1=213/4
<span><span>(6.2)</span>*<span>(4)</span></span>=<span>213*<span>(<span><span>2x</span>+1</span><span>)
</span></span></span>
<span>24.8=<span><span>426x</span>+213</span></span><span>
Second Step flip with the equation.
</span><span><span>426x</span>+213</span>=<span>24.8
</span>
Third Step Subtract 213 from both sides.
<span><span><span>426x</span>+213</span>−213</span>=<span>24.8−<span>213
</span></span>
<span>426x</span>=<span>−<span>188.2
</span></span>
Fourth Step Divide both sides of 426.
426x/426 = -188.2/426
Answer is x= -0.441784
