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harkovskaia [24]
3 years ago
9

If 8 men on a construction crew make up 40% percent of the entire crew, how many people are in the crew?

Mathematics
2 answers:
asambeis [7]3 years ago
8 0
X(0.4)=8
x=8/0.4
x=20
so there’s 20 people in the crew
hope this helps !
pochemuha3 years ago
6 0

Answer:

Step-by-step explanation:

Since 40% of the crew are men, which means n. 40=8 n=8/. 40 n=20 total number of crew 20 - 8=12 are women

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If y has moment-generating function m(t) = e 6(e t −1) , what is p(|y − µ| ≤ 2σ)?
Lostsunrise [7]
Since \mathrm M_Y(t)=e^{6(e^t-1}, we know that Y follows a Poisson distribution with parameter \lambda=6.

Now assuming \mu,\sigma denote the mean and standard deviation of Y, respectively, then we know right away that \mu=6 and \sigma=\sqrt6.

So,

\mathbb P(|Y-\mu|\le2\sigma)=\mathbb P(6-2\sqrt6\le Y\le6+2\sqrt6)=\dfrac{66366}{175e^6}\approx0.940028
6 0
3 years ago
A basketball league's average score is 58 points per game. Coach McGee tracks a team's average for five weeks and compares
iogann1982 [59]

Answer:

the 2nd option

Step-by-step explanation:

If you change Week 5 into a decimal, you will get -1.8, which is the same as Week 4.

Hope this helps :)

8 0
3 years ago
Arianna runs up 4 flights of stairs and then runs down 4 flights of stairs. Does this situation represent additive inverses?Expl
MariettaO [177]

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6 0
3 years ago
Please help<br> A) y&lt; 2x+4<br> B) y&lt; 1/2x+3<br> C)y&gt; 1/2x+3<br> D) y&gt; 2x+3
lesya692 [45]

Answer:

B

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if it is shaded under than it is <

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4 0
3 years ago
Suppose that v1(t)=100cos(ωt)and v2(t)=100sin(ωt). Use phasors to reduce the sum vs(t)=v1(t)+v2(t) to a single term of the form
GuDViN [60]

Answer:

vs(t)=152.08cos(\omega t -45)=152.08\angle-45

Step-by-step explanation:

A tension expressed in form:

V(t)=Vm*cos(\omega t+\phi)

It can be converted directly into a fasor:

V(t)=Vm\angle \phi

If the function is a positive sine we subtract 90 °

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So:

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Therefore:

vs(t)=152.08\angle-45=152.08cos(\omega t -45)

7 0
3 years ago
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