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PSYCHO15rus [73]
2 years ago
11

I dont really understand this

Mathematics
1 answer:
galina1969 [7]2 years ago
4 0

Answer:

1. a^-b

2.a^b/a^c

3.a^c/b^c

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0.75 + 0.25 = t

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3 years ago
Determine the percentage increase from 10 yards to 13 yards
julia-pushkina [17]

Answer:

30%

Step-by-step explanation:

In this case, we have a positive change (increase) of 30% because the new value is greater than the old value. Using this tool you can find the percent increase for any value.

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3 years ago
Two vertical poles of length 10 and 12 ​feet, respectively, stand 17 feet apart. A cable reaches from the top of one pole to the
Marat540 [252]

Answer:

L=\sqrt{x^{2}+100}+\sqrt{x^{2}-34x+433} ft

Step-by-step explanation:

let length of calble = L

distance from 10-foot pole = x ft

Moving from the top of the 10-foot pole to point x, we have

From the diagram that

x^{2} +10^{2}=L_{1} ^{2}  \\x^{2} + 100 = L_{1} ^{2}

Take the square root of both sides

\sqrt{x^{2}+100}=\sqrt{L_{1} ^{2}}\\  \sqrt{x^{2}+100}= L_{1}

Moving from point x to the top of the 12-foot pole, we have

From the diagram that

(17-x)^{2}+12^{2}=L_{2} ^{2}   \\289-34x+x^{2} +144=L_{2} ^{2}\\x^{2} -34x+433=L_{2} ^{2}

Take the square root of both sides

\sqrt{x^{2}-34x+433}=\sqrt{L_{2} ^{2}}  \\\sqrt{x^{2}-34x+433}=L_{2}

Amount of cable used, L = L1 + L2

L=\sqrt{x^{2}+100}+\sqrt{x^{2}-34x+433}

3 0
3 years ago
Please graph y=−1/2. thank you!
Dominik [7]

Answer:

There would be a straight line at -0.5 on the graph.

Step-by-step explanation:

Hope this helps

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3 years ago
Help Me Please I will give brainliest if correct!
il63 [147K]

Answer:

9c^{7}

Step-by-step explanation:

c^{-4} is equal to \frac{1}{c^{4} }. \frac{9c^{3} }{\frac{1}{c^{4} } } is equal to 9c^{7}.

3 0
2 years ago
Read 2 more answers
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