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Sholpan [36]
3 years ago
10

Which choice describes whether x = 19 is the solution of the equation 42 = 3x - 15?

Mathematics
1 answer:
Ugo [173]3 years ago
8 0

Answer:

check

Step-by-step explanation:

3(19) - 15 = 42

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At what point on the curve y = 2 + 2ex − 4x is the tangent line parallel to the line 4x − y = 3? (x, y) =
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Answer:

{ln 4, (2 + 2e^ln 4 − 4 ln 4)} or (1.39, 4.45)

Step-by-step explanation:

From this equation 4x − y = 3

-y = 3 - 4x

then, y = 4x - 3

From line equation y = mx + b

Therefore, the slope is 4

Since the are parallel line, they will have same slope

Finding the derivative of y = 2 + 2e^x − 4x

y = 2 + 2e^x − 4x

y' = 0 + 2e^x - 4

Therefore,

4 = 2e^x - 4

4 = e^x

x = ln 4 = 1.39

To find the y coordinate

y = 2 + 2e^x − 4x

y = 2 + 2e^ln 4 − 4 ln 4

y = 4.45

Hence, they are parallel at point (1.39 and 4.45)

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What is 400 percent as a mixed number?
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The value of a car depreciates every year at a constant rate. Gary bought a car for $25,000 in the year 2013. If the value of th
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