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Rudik [331]
2 years ago
10

Find the value of x and y

Mathematics
1 answer:
Marysya12 [62]2 years ago
4 0

Answer:

x=36 y=48

Step-by-step explanation:

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Sally begins hiking at an elevation of 224 feet. Then, she descends 131 feet
pshichka [43]

Answer:

The sum −3 is an indication that Sally is 3 feet below her initial position.

Step-by-step explanation:

Represent the distances going up (ascend) as positive and distances going down (descend) as negative so that the sum is:

224 + (-131) + 67+ (-163)

Add by using the commutative property:

224 + 67 + (-131) + (-163) = 291

The sum −3 is an indication that Sally is 3 feet below her initial position.

5 0
2 years ago
What are the coordinates of the vertex if the focus is at (5, 1) and the directrix is at y = -5?
gtnhenbr [62]

Answer:

x = 5. I dont know if this is what your looking for but good luck.

Step-by-step explanation:

I got this question too and x = 5 was correct

5 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
Help will mark brainiest
Ivanshal [37]

So first Isolate the variable by dividing each side by factors that don't contain the variable.

y= 3x/2 + 3

Hope this helps!

6 0
2 years ago
Read 2 more answers
Help me with this question!
Damm [24]

Answer:

it will cost him £2.38

Step-by-step explanation:

bc you first multiply 4.25kg with £1.40 and that equals to 5.95

then you take 5.95 and devide it with 2.5 kg then that equals to £2.38.

I hope that this helped you.

8 0
2 years ago
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