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valentinak56 [21]
3 years ago
15

Find the exact value of sin(4π3+π4)

Mathematics
1 answer:
iren2701 [21]3 years ago
8 0
<h3>Equation Step by Step</h3>

sin(4(3.141593^3)+3.141593^4)

sin((4)(31.006277)+3.141593^4)

sin(124.025107+3.1415934)

in(124.025107+97.409091)

sin(221.434198)

=0.998844

Tbh, might be wrong on this one. I'm on the road so didn't double-check my answer.

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(4x-y=-15)<br>(3x-2y=-10)<br>​
Andreyy89

Answer:

<h2>x = -4 and y = -1 → (-4, -1)</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}4x-y=-15&\text{multiply both sides by (-2)}\\3x-2y=-10\end{array}\right\\\underline{+\left\{\begin{array}{ccc}-8x+2y=30\\3x-2y=-10\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad-5x=20\qquad\text{divide both sides by (-5)}\\.\qquad\qquad\boxed{x=-4}\\\\\\\text{Put the value of x to the first equation.}\\\\4(-4)-y=-15\\-16-y=-15\qquad\text{add 16 to both sides}\\-y=1\qquad\text{change the signs}\\\boxed{y=-1}

5 0
3 years ago
Idrk an easy way to solve this lol
Dmitry [639]

Answer:

math math math ;D

Step-by-step explanation:

afdgdfgdagf

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4 years ago
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Step-by-step explanation:

5 0
3 years ago
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Explain how the GCF is used to factor an expression?
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Please help me out thx
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Answer would be the second one

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