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WINSTONCH [101]
3 years ago
6

Does 2 1/4-6/7=1 3/4

Mathematics
1 answer:
dimulka [17.4K]3 years ago
7 0

Answer: No, it would be 2/5.


Step-by-step explanation: 2 1/4 - 6/7 is equal to about 1.4 when rounded to the nearest tenth. 1.4 as a fraction would be 4/10. 4/10 is simplified to 2/5 by dividing each number by 2.


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Luna observed that in the last 12 issues of rise over run weekly 384 of the 960 pages contained an advertisement if there are 80
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Estimate length using compensation
Murljashka [212]
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3 years ago
Use the squared identities to simplify 2sin^2xcos^2x
Rainbow [258]
\bf sin^2({{ \theta}})=\cfrac{1-cos(2{{ \theta}})}{2}\qquad \qquad 

cos^2({{ \theta}})=\cfrac{1+cos(2{{ \theta}})}{2}\\
-----------------------------\\
thus
\\\\
2sin^2(x)cos^2(x)\implies \boxed{2}\cdot \cfrac{1-cos(2{{ x}})}{\boxed{2}}\cdot \cfrac{1+cos(2{{ x}})}{2}
\\\\
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\cfrac{[1-cos(2x)][1+cos(2x)]}{2}\\
-----------------------------\\
\textit{now recall}\implies \textit{difference of squares}
\\ \quad \\


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\\\\
 \cfrac{1-cos^2(x)}{2}\impliedby 
\begin{array}{llll}
\textit{pretty sure you know what that numerator is}\\
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7 0
3 years ago
Read 2 more answers
A closed rectangular tank measures 5 meters by 10 meters by 6 meters. What is the surface area of the tank?
shutvik [7]

Answer:

280 square units

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Using the given dimensions {5, 6, 10}, find the area of the front, top and end of the box:  5*6 + 5*10 + 6*10 = 140 square units.

The back of the box is the same size and shape as the front, the bottom the same as the top, and the other end the same as the first end.  Thus, multiply 140 square units by 2 to get the total surface area of the tank:

It is 280 square units.

4 0
3 years ago
Multiply the numbers in scientific notation (5.35 times 10^3) times (6.12 times 10^7)
Leokris [45]

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8 0
3 years ago
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