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3 years ago

What is 4/7 + 2/7 in simplest form

Mathematics

1 answer:

Arada [10]3 years ago

3 0

$\frac{2}{7} +\frac{4}{7}\\
\frac{2+4}{7}\\
\frac{6}{7}$
Your answer is $\frac{6}{7}$

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How do you do this trig problem.

loris [4]

Consider a right triangle in which one of the angles $\theta$ satisfies

$\sin\theta=\dfrac35\implies\theta=\sin^{-1}\dfrac35$

That is, the side opposite $\theta$ occurs in a ratio of 3 to 5 with the hypotenuse. The side adjacent to $\theta$ then occurs in a ratio of 4 to 5 with the hypotenuse. In other words,

$\cos\theta=\dfrac45$

because

$\sin^2\theta+\cos^2\theta=\dfrac9{25}+\dfrac{16}{25}=1$

Then in this triangle,

$\cot\theta=\cot\left(\sin^{-1}\dfrac35\right)=\dfrac{\cos\theta}{\sin\theta}=\dfrac{\frac45}{\frac35}=\dfrac43$

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2 years ago

Lebo buys blank writable CDs in bulk. He repackages them and sells them

Kay [80]

Answer:

He must sell each CD for R1,10 to make 40% profit

Step-by-step explanation:

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R40-2=R38

40%×38=R15,2

15,2+40=55,2

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3 years ago

Aré 24cd and 9cd like terms

Lapatulllka [165]

Answer:

Yes, they are

Step-by-step explanation:

Because they both end with cd, they are like terms. Anything with the same ending letters are like terms.

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2 years ago

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Step-by-step explanation:

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2 years ago

12(x+1/6)=8 solve for x

irinina [24]

X = 1/2 or X = 0.5.

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3 years ago

Read 2 more answers