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amm1812
3 years ago
12

The super cool X1400 will cost 60 per month to operate, while the Efficient Energy X2000 costs only $40 per month to operate?

Mathematics
1 answer:
vladimir1956 [14]3 years ago
5 0
This isn't a complete question?

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20 points!
Scorpion4ik [409]

Answer:

A = -5/4

Step-by-step explanation:

Slope = rise/run

The line is negative, so the slope will be negative too.

Given the two points, the vertical count is 5 while the horizontal count is 4.

Since slope = rise/run, and the line is negative, the slope is -5/4

8 0
3 years ago
A system has two failure modes. One failure mode, due to external conditions, has a constant failure rate of 0.07 failures per y
nadya68 [22]

Answer:

0.9177

Step-by-step explanation:

let us first represent the two failure modes with respect to time as follows

R₁(t) for external conditions

R₂(t) for wear out condition ( Wiebull )

Now,

R1(t) = e^{-nt} .....1

where t = time in years = 1,

n = failure rate constant = 0.07

Also,

R2(t)=e^{-(\frac{t}{Q} )^{B} }......2

where t = time in years = 1

where Q = characteristic life in years = 10

and B = the shape parameter = 1.8

Substituting values into equation 1

R1(t) = e^{-(0.07)(1)} \\\\R1(t) = e^{-0.07}

Substituting values into equation 2

R2(t)=e^{-(\frac{1}{10} )^{1.8} }\\\\R2(t)=e^{-(0.1)}^{1.8} }\\\\R2(t)=e^{-0.0158}

let the <em>system reliability </em>for a design life of one year be Rs(t)

hence,

Rs(t) = R1(t) * R2(t)

t = 1

Rs(1) = [e^{-0.07} ] * [e^{-0.0158} ] = 0.917713

Rs(1) = 0.9177 (approx to four decimal places)

5 0
3 years ago
In a school with 2,000 students, a random sample of 120 students were asked which fruit is their favorite. Their responses are s
ki77a [65]
We know that

<span>Out of 120 students----------> 34 chose orange as the favorite fruit
</span>Find the <span>percentage
</span><span>percentage=34/120------> 17/60-----> 0.2833------> 28.33%

for </span>2,000 students
0.2833*2000=566.67-----------> about 567 students

the answer is
about 567 students
3 0
3 years ago
Read 2 more answers
HELPPPP I DONT KNOW THE ANSWER PLEASE HELP ME
lidiya [134]

Answer:

IM PRETTY POSITIVE ITS B

PLS MARK BRAINLIEST

SORRY IF IM WRONG :P

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
If reporter jo reports 12 stories every 3weeks what is the simplified ratio of stories to weeks
bagirrra123 [75]
The simplified ratio would be 4 to 1! hope this helps :)
6 0
3 years ago
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