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3 years ago

Write 7/12 as a percentage correct to two decimal places

Mathematics

1 answer:

inna [77]3 years ago

6 0

58.33%. 7 divided by 12 equals 0.5833, so you can just move the decimal two places to the right to find the percentage.

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Solve the equation for the value of x, <br> -4x=36 <br><br> Please show your work, thank you.

Marianna [84]

Answer:

x = -9

Step-by-step explanation:

First,Add 4 to both sides

-4x-4+4=36-4+4

Then,simplify

-4x=36

divide both sides by -4

-4x/-4 = 36/-4

Lastly simplify it to get your answer!

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3 years ago

What is f(x)= (x-3)(x+4) in standard form?

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Answer:

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3 years ago

An article is bought for Rs.5000 and sold of the cost price.What is the profit percent?

Delicious77 [7]

Answer:

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4 years ago

Please help to solve this.<br> Find sin5x,if sinx+cosx=1,4

MrMuchimi

Answer:

Hello,

Step-by-step explanation:

we must first remember that:

$\boxed{sin(5x)=5sin(x)-20*sin^3(x)+16*sin^5(x)}\\\\$

Let say t=sin(x)

$sin(x)+cos(x)=1.4\\\\t+\sqrt{1-t^2}=1.4\\\sqrt{1-t^2}=1.4-t\ we\ square\\1-t^2=1.4^2+t^2-2.8*t\\2t^2-2.8*t+0.96=0\\\Delta=2.8^2-4*2*0.96=0.16=0.4^2\\\\t=\dfrac{2.8-0.4}{4} =0.6\ or\ t=\dfrac{2.8+0.4}{4}=0.8\\\\t^3=0,216\ or\ t^3=0,512\\\\t^5=0,07776\ or\ t^5=0,32768\\\\\boxed{sin(5x)=5*0.6-20*0.216+16*0.07776=-0,07584}\\\\or\\\\\boxed{sin(5x)=5*0.8-20*0.512+16*0.32768=-0,99712}$

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3 years ago

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VashaNatasha [74]

Y is the same sorry if i’m incorrect

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3 years ago