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2 years ago

1. What are the steps you take to add polynomials? What do you do?

Mathematics

1 answer:

skelet666 [1.2K]2 years ago

6 0

Thanks so much and i'm glad i could help you!!

-Much love, Makayla

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What's the square rute of 0.81

Black_prince [1.1K]

The square root is 0.9

6 0

2 years ago

Read 2 more answers

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 system reliability 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

Solve the following proportion. P/6 = 7/8 A: P=5.25 B: P=8 C: P=10.5 D: P=42

ValentinkaMS [17]

Answer:

Step-by-step explanation:

given $\frac{P}{6}$ = $\frac{7}{8}$

using the method of cross- multiplication then

8P = 42 ( divide both sides by 8 )

P = $\frac{42}{8}$ = 5.25

4 0

2 years ago

Are 15:35 and 25:45 the same thing]

marishachu [46]

They are not the same thing.

3 0

2 years ago

Jasmine bought 1.3 pounds of ham and 0.8 pounds of cheese from the deli and paid $11.28. She went back the following week and bo

LuckyWell [14K]

Let

x be the price for a pound of ham
y the price for a pound of cheese

1.3x +0.8y = 11.28 ....(1)
1.5x +1.2y = 14.76 ....(2)

Lets multiply (1) by -1.2
Lets multiply (2) by 0.8

-1.56x -0.96y = -13.536 .....(3)
 1.2x + 0.96y = 11.808 .....(4)

If we add (3) and (4)

-0.36x = -1.728 ............> x = 4.8

We substitute in (1)

1.3(4.8) +0.8y = 11.28

y = 6.3

Price per pound of ham = x = 4.8
Price per pound of cheese = y = 6.3

5 0

3 years ago