3 years ago

Use heron's formula to find the area of the triangle. round to the nearest square unit

Mathematics

1 answer:

GarryVolchara [31]3 years ago

3 0

Did the question give you any lengths of the sides?

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Consider the tangent line to the curve y = 6 sin(x) at the point (π/6, 3). (a) Find a unit vector that is parallel to the tangen

mojhsa [17]

Answer:

$y=\frac{\pi }{6}+5.196(x-3)$

Step-by-step explanation:

We have given the equation y = 6 sin (x)

On differentiating both side $\frac{dy}{dx}=m=6cosx$

As it passes through the point $(\frac{\pi }{6},3)$

So $\frac{dy}{dx}=6cos\frac{\pi }{6}=5.196$

Now the unit vector is parallel to the tangent so m will be 5.196

This passes through the point $(\frac{\pi }{6},3)$

So unit vector will be $y-\frac{\pi }{6}=5.196(x-3)$

$y=\frac{\pi }{6}+5.196(x-3)$

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3 years ago

A 56-inch Woman cast a shadow that is 16 inches long. How tall is her child if his shadow is 14 inches long?

nikitadnepr [17]

Answer:49

Step by step is 56÷16=3.5

14x3.5=49

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2 years ago

What is 15% tax on 42.87 round to the nearest cent

frez [133]

42.87*0.15= $6.43 rounded

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3 years ago

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The angles in a triangle have<br><br> measures of 61°, (3z), (z-5)<br><br> What is the value of z?

vfiekz [6]

Answer:

z = 31

Step-by-step explanation:

A triangle adds up to 180 degrees

Therefore this equation is formed: 61 + 3z + z -5 = 180

Simplify:

4z = 124

z = 31

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2 years ago

A new photocopier works 4 times as fast as an old one. When the machines work together, a university can produce all its staff m

Usimov [2.4K]

The old photocopier can make x manuals in an hour. The new photocopier can make 4x. Combined, they made 5x manuals in an hour.

In one hour they can make 1/28 of the manuals.

1/(28*5)=1/140 is the rate.

The new photocopier can make all the manuals in 4/140 or 35 hours.

The old one can make them in 140 hours.

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2 years ago