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dem82 [27]
3 years ago
10

Y+6x=11;x=-2,0,4

Mathematics
1 answer:
hichkok12 [17]3 years ago
7 0
What does the second equation mean???
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An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 130lb and 1
Vlad [161]

Answer: 0.4758

Step-by-step explanation:

Given : Mean : \mu=137\text{ lb}

Standard deviation : \sigma =28.9\text{ lb}

Also, the new population of pilots has normally distributed .

The formula to calculate the z-score :-

z=\dfrac{x-\mu}{\sigma}

For x=130 lb .

z=\dfrac{130-137}{28.9}=-0.2422145\approx-0.24

For x=171lb.

z=\dfrac{171-137}{28.9}=1.1764705\approx1.18

The p-value =P(-0.24

=0.8809999-0.4051651=0.4758348\approx0.4758348\approx0.4758

Hence, the required probability : 0.4758

6 0
2 years ago
Through: (3, -5) and (0, -2) <br><br><br>please add the steps please.​
Vlad [161]
1: -5 = 3m + c
2: -2 = 0 + c

From equation 2, we knew c = -2
So we sub into equation 1 and got the value of m

-5 = 3m - 2
m = -1

The equation of line is y = -x - 2
7 0
2 years ago
Need help plese! The polygons in each pair are similar. Solve for x. *
Lena [83]

Answer:

7

Step-by-step explanation:

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Which of the following numbers is closest to 1?
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Did i draw Q and R in the right spots? and how would i show work for this? plz help!!!!!!
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You did and to describe the figure its in short terms a trapizoid
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