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2 years ago

-7(2v + 1) = 41 -6v help yo

Mathematics

2 answers:

Marat540 [252]2 years ago

8 0

Answer:

-14v+-7=41-6v

+14v +14v

-7=41+8v

-41 -41

-48=8v

/8 /8

-6=v

v=-6

Step-by-step explanation:

Marrrta [24]2 years ago

3 0

Answer:

-7(2v + 1) = 41 -6v

-14v-7=41-6v+14v

-7 =41+8v

-48=8v

v = -6

Hope you got it

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Viefleur [7K]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

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uranmaximum [27]

One way to do this is to notice

$\dfrac{17\pi}{12}=\dfrac\pi6+\dfrac{5\pi}4$

Then

$\tan\dfrac{17\pi}{12}=\tan\left(\dfrac\pi6+\dfrac{5\pi}4\right)=\dfrac{\tan\frac\pi6+\tan\frac{5\pi}4}{1-\tan\frac\pi6\tan\frac{5\pi}4}$

We have

$\tan\dfrac\pi6=\dfrac{\sin\frac\pi6}{\cos\frac\pi6}=\dfrac{\frac12}{\frac{\sqrt3}2}=\dfrac1{\sqrt3}$

and since $\tan x$ has a period of $\pi$ ,

$\tan\dfrac{5\pi}4=\tan\left(\pi+\dfrac\pi4\right)=\tan\dfrac\pi4=1$

and so

$\tan\dfrac{17\pi}{12}=\dfrac{\frac1{\sqrt3}+1}{1-\frac1{\sqrt3}}=\dfrac{1+\sqrt3}{\sqrt3-1}=2+\sqrt3$

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3 years ago

The square root of 83 can be platted on the number line below

wel

The answer is some number between 9 and 10.
Explanation:
√83
is an irrational number. You won't be able to simplify it any further either, since it doesn't have any perfect square factors.
However, you will be able to tell between which two numbers it lies in.
9^2 is 81 and 10^2 is 100
. Therefore, you can say that a certain number between 9 and 10 is 83 when squared.
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