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AfilCa [17]
2 years ago
11

A number z, when rounded to the nearest whole, is equal to 70. Find the upper and lower bound of x

Mathematics
1 answer:
rusak2 [61]2 years ago
4 0

Answer:

A quick way to calculate upper and lower bands is to halve the degree of accuracy specified, then add this to the rounded value for the upper bound and subtract it from the rounded value for the lower bound.

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Pls help me with this
Zigmanuir [339]

Answer:

100

Step-by-step explanation:

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What is this factored?
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The factored form of an equation is the simplest form of the equation that is obtained by factoring out a common variable or constant from multiple terms. Many types of polynomials are presentable in factored form, but the more terms an equation contains, the more difficult it is to find common factors.
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It takes 5 hours for a boat to travel 25 miles upstream. The same boat can travel 30 miles downstream in 2 hours. Find the speed
loris [4]

Answer:

so 5 miles upstream and 15 miles downstream

Step-by-step explanation:

25/5=5

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3 0
2 years ago
Find the distance between a and b.<br><br> ​<br><br> a = 9.21, b = –5.51<br><br> ​
cricket20 [7]
9.21 - (-5.51)
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3 years ago
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The family of functions y = ce^{-2x} + e^{-x} is solution of the equation y' + 2y = e^{-x}. Find the constant c which defines th
Rufina [12.5K]

Answer:

c = 1190.2

Step-by-step explanation:

We have the following solution:

y(x) = ce^{-2x} + e^{-x}

We want to find the value of x that satisfies the following condition:

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This means that when x = 3, y = 3. So

y(x) = ce^{-2x} + e^{-x}

y(3) = ce^{-2*3} + e^{-3}

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3 = ce^{-6} + 0.0498

ce^{-6} = 2.9502

c = \frac{2.9502}{e^{-6}}

c = 1190.2

4 0
2 years ago
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