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balandron [24]
3 years ago
15

Four whole nuber are each rounded to the nearest 10 the sum of the four rounded numbers is 90 what is the possible maximum sum o

f the four original numbers
Mathematics
1 answer:
bearhunter [10]3 years ago
3 0

Answer:

106

Step-by-step explanation:

Let's try guessing...

45+45=90\\30+30+30=90\\10+20+30+30=90

All the units place has to be 4, if it is higher than 4 then the answer will not be 90 (the sum of the four rounded numbers).

14 + 24 + 34 + 34= 106

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bagirrra123 [75]

Answer: the answer is approximately 41.65428, not rounded (maybe re do all the steps just in case)

Step-by-step explanation:

1. label the space between X and W the unknown.

2. You will be using SOH-CAH-TOA

3. Label the X as the opposite because it is the opposite side of where your degree is located.

4. Label five as adjacent because it’s next to the degree.

5. You will use TOA since you have adjacent and opposite values.

6. Write the equation tan58=x/5, the unknown goes on the top because O is first, the five goes on the bottom because A is last on TOA.

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2 years ago
The number of vibrations n n per second of a nylon guitar string varies directly with the square root of the tension T T and inv
emmasim [6.3K]

Answer: T=40.96\ KgF

Step-by-step explanation:

We know that:

n: The number of vibrations per second of the nylon guitar string.

T: Tension.

L: The length of the string.

Since  n  varies directly with the square root of the  T and inversely with  L, the equation has the following form:

n=k*\frac{\sqrt{T} }{L}

Where "k" is the constant of variation.

Knowing that when n=15 and L=0.6, T=256, we can find the value of "k":

n=k*\frac{\sqrt{T} }{L}\\\\L*n=k\sqrt{T}\\\\\frac{L*n}{\sqrt{T}}=k\\\\k=\frac{(0.6)(15)}{\sqrt{256}}\\\\k=0.5625

Finally, in order to find the tension when the length is 0.3 meters and the number of vibrations is 12, you need to substitute these values and the value of "k" into n=k*\frac{\sqrt{T} }{L} and solve for T:

12=(0.5625)\frac{\sqrt{T} }{0.3}\\\\\frac{12(0.3)}{(0.5625)}=\sqrt{T}\\\\(6.4)^2=T\\\\T=40.96\ KgF

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Answer:

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Step-by-step explanation:

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3 years ago
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To make it easier turn this equation into a slope. To do that you must get "y" by itself on one side of the equal sign. The "y" have to be positive. Then plot it out. Enter the "x" (1 for example) in the equation and solve to get "y". Then use the ordered pair to plot out the slope. Then you find a coefficient of "x" that matches the one in this equation and plot that out. If it's parallel then it's right. :)
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3 years ago
Read 2 more answers
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