I really need help !!

Mathematics

1 answer:

Gnesinka [82]3 years ago

7 0

Your proportion is
(65 mi)/(19 gal) = (x mi)/(57 gal)

Multiply by (57 gal/mi) to solve the problem.
57(65/19) = x = 195

The boat can travel 195 miles on 57 gallons of gas.

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compare the right-hand and left-hand derivatives to show that the function is not differentiable at the point P. find all points

Softa [21]

$f(x)= \left \{ {{ \sqrt{x} } \atop {2x-1}} \right. 
\\
\\ f'(x)= \left \{ {{ \frac{1}{2\sqrt{x}} } \atop {2}} \right. 
\\
\\ f'(1)= \left \{ {{ \frac{1}{2}} \atop {2}} \right. 
\\
\\ f'(1^-) \neq f'(1^+)$

Therefore, the function is not differentiable at x = 1.

$f(x)= \sqrt{x} 
\\
\\f'(x)= \frac{1}{2 \sqrt{x} } 
\\
\\f'(0)=\frac{1}{2 \sqrt{0} } = \infty$

Therefore, the function is not differentiable at x = 0.

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3 years ago

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jeka57 [31]

Answer:

2/3 ÷ 4=1/6

Step-by-step explanation:

2/3÷4=2/3×1/4

=1/3×2

=1/6

7 0

4 years ago