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2 years ago

If cot x = .78, what is tan x

Mathematics

1 answer:

Vanyuwa [196]2 years ago

3 0

We know, tan x = 1 / cot x
So,tan x = 1/ 0.78
tan x = 1.28

In short,Your Answer would be 1.28

Hope this helps!

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2 years ago

If a triangle has three congruent angles, then it is equilateral.

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A triangle has a height that is increasing at a rate of 2 cm/sec and its area is increasing at a rate of 4 cm2/sec. Find the rat

lesya [120]

Answer:

The value of rate of which the base is changing $\frac{dB}{dt}$ = - 3 $\frac{cm}{s}$

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Area = 20 $cm^{2}$

height = 4 cm

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$\frac{dA}{dt} =$ $2 \ \frac{cm^{2} }{sec}$

we know that area of the triangle is given by

$A= \frac{1}{2} B H$

$B = \frac{2A}{H}$

$B = \frac{2 (20)}{4}$

B = 10 cm

Rate of change of area is given by

$\frac{dA}{dT} = \frac{1}{2} [B\frac{dH}{dt} + H \frac{dB}{dt} ]$

4 = 0.5 [10 × 2 + 4 $\frac{dB}{dt}$ ]

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2 years ago

What is the image of the point (3,4) after a rotation of 90 degree counterclockwise about the origin

jeka57 [31]

Answer:

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Under a counterclockwise rotation about the origin of 90°

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1 year ago