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CaHeK987 [17]
3 years ago
7

Find the value of x.

Mathematics
1 answer:
STALIN [3.7K]3 years ago
8 0
X would equal 38 because this is a straight angle so that would equal a total of 180 degrees. Since we already have 36 we subtract 180-36 and we get 144. Since there’s a 3x that means we divide the answer we got by 3. So 144/3 and you get 48. Hope this helps!
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So which is equivilentpemdas
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Linear function determining slope and y-intercept from a graph
nordsb [41]

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Find the solution to dy/dt = 7 y<br><br> satisfying<br> y(9) = 5
AVprozaik [17]
\rm \dfrac{dy}{dt}=7y,\qquad\qquad\qquad y(9)=5

I'm not sure what methods you've learned up to this point but one option is to apply separation of variables:

\rm \dfrac{dy}{y}=7dt

and then integrate from there,

\rm ln|y|=7t+c

exponentiate to isolate y,

\rm |y|=e^{7t+c}

Apply exponent rule,

\rm |y|=e^c e^{7t}

rename this e^c as some new constant, perhaps A,

\rm \pm y=A e^{7t}\qquad\qquad A>0

This A can only be positive, non-zero, but absorbing the plus/minus fixes that restriction,

\rm y=A e^{7t}\qquad\qquad A\ne0

Use your initial information to solve for this unknown value A,

\rm y(9)=A e^{7\cdot9}=5

solving for A, dividing by the exponential,

\rm A=5e^{-63}

So we get a final result of

\rm y(t)=5e^{-63}e^{7t}

apply exponent rule again to get a better looking answer, and factor,

\rm y(t)=5e^{7(t-9)}

Lemme know if too confusing.
3 0
3 years ago
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vodomira [7]
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7 0
3 years ago
Select the smallest fraction from the following fractions. 2/4 1/3 3/6 7/9
12345 [234]

Answer:

2/5 is the smallest fraction. Your welcome.

3 0
3 years ago
Read 2 more answers
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