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Irina-Kira [14]
3 years ago
10

Pls help this is due soon!!!

Mathematics
1 answer:
Setler79 [48]3 years ago
5 0
19 for the far left!!!!
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Which of the following verbal expressions describes the algebraic expression x+6/x-8
topjm [15]
D would be the most correct of the answer choices
3 0
3 years ago
On one of its routes across Asia, Alpha Airlines flies an aircraft with checked-in luggage capacity of 8500 lbs. There are 121 s
Doss [256]

Answer:

the probability is P=0.012 (1.2%)

Step-by-step explanation:

for the random variable X= weight of checked-in luggage, then if X is approximately normal . then the random variable X₂ = weight of N checked-in luggage = ∑ Xi  , distributes normally according to the central limit theorem.

Its expected value will be:

μ₂ = ∑ E(Xi) = N*E(Xi) = 121 seats * 68 lbs/seat = 8228 lbs

for N= 121 seats and E(Xi) = 68 lbs/person* 1 person/seat = 68 lbs/seat

the variance will be

σ₂² = ∑ σ² (Xi)= N*σ²(Xi) → σ₂ = σ *√N = 11 lbs/seat *√121 seats = 121 Lbs

then the standard random variable Z

Z= (X₂- μ₂)/σ₂ =

Zlimit= (8500 Lbs - 8228 lbs)/121 Lbs = 2.248

P(Z > 2.248) = 1- P(Z ≤ 2.248) = 1 - 0.988 = 0.012

P(Z > 2.248)= 0.012

then the probability that on a randomly selected full flight, the checked-in luggage capacity will be exceeded is P(Z > 2.248)= 0.012 (1.2%)

8 0
3 years ago
X-7=-2x-5 can someone help me with the steps
natima [27]
X-7 - -2x-5

answer is 2/3 

X-7 + 2X= -2x-5+2x

3x-7= -5


3x-7+7= -5+7 (getting x alone)

3x=2 

divide by 3 to get x

3x/3 =2/3

x=2/3
8 0
3 years ago
Read 2 more answers
Birth and death rates are often reported as births or
Burka [1]

Answer:

10 growth per 1000.

Step-by-step explanation:

Given,

Rate of birth = 30 births per 1000

Rate of death = 20 deaths per 1000

As the growth in population is the difference in the number of the child take birth and the person die.

As we are calculating the rate of birth and rate of growth in per thousands of members, so the growth rate will be also in per thousands.

As we can see on every one thousand people,

total birth = 30

total death = 20

so, total growth = total birth - total growth

                           = 30 - 20

                           = 10

As at every 1000 persons, there are 10 persons survive, so the rate of growth will be 10 growth per 1000.

6 0
3 years ago
Complete the ratio table to convert the units of measure from centimeters to inches or inches to centimeters.
djverab [1.8K]

Answer:

Step-by-step explanation:

2.45 m in inches = 96.457 in. 2.45 meters to inches = 96.457″. To convert 2.45 meters to inches you have to divide the length expressed in the base unit of length in the International System (SI) of Units by 0.0254 .25.4Centimeters

8 0
3 years ago
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