3 years ago

Some roads in Poland have a speed limit of 140 km/h. How fast is this in miles per minute?

Mathematics

1 answer:

zheka24 [161]3 years ago

5 0

1 .47 miles per minute

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I will mark you brainliest if its correctly

zheka24 [161]

Step-by-step explanation:

sina = -√3/2

$\cos(a) = \sqrt{1 - { \sin(a) }^{2} }$

$= \sqrt{1 - { (\frac{ - \sqrt{ 3} }{2}) }^{2} }$

$= \sqrt{ \frac{4 - 3}{4} }$

$= \sqrt{ \frac{1}{4} }$

=±1/2

Since, π<a<3π/2

cos a = -1/2

$\tan(a )= \frac{ \sin(a) }{ \cos(a) }$

$\tan(a ) = \sqrt{3}$

OptionB

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igomit [66]

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Step-by-step explanation:

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Given line y-1/6x+9,find a perpendicular line to the given line passes through points (6,-3)?

DerKrebs [107]

Answer:

y + 3 = (6)(x - 6)

Step-by-step explanation:

The proper format for this equation y-1/6x+9 is y = (-1/6)x+9.

Any line perpendicular to y = (-1/6)x+9 has the slope which is the negative reciprocal of that of y = (-1/6)x+9, or the negative reciprocal of -1/6. That is +6.

Thus, the desired line, which passes through (6, -3), is found using the point-slope formula for the equation of a straight line:

y + 3 = (6)(x - 6)

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What is the perimeter of this shape?

Zinaida [17]

WHat shape? Perimeter is all of the sides added together, so to find out. we would need to see the shape and its dimensions

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4^0 x 16^0 <br> I don’t know how the 0 work

Lisa [10]

Answer:

Its just 1.

Step-by-step explanation:

anything to the power of 0 is 1 simple

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3 years ago