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3 years ago

Principal Watts walks 5 miles every day. How many miles does he walk in 1 year, or 365 days. write and solve an equation

2 answers:

8 0

Ok, so since she walks 5 miles a day every single day, you have to multiply 5 with 365.
5*365 = 1825
So, Principal Watts walks 1825 miles a year.

Harman [31]3 years ago

6 0

1,825 miles per year.

y = 5x

x = days

y = 5 ( 365 )

1,825 = 5x

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Jared is standing on the roof of a 100 meter building doing some surveying. He spots a delivery truck at an angle of depression

just olya [345]

1st :The angle of depression 30° = the angle of elevation (from the truck to the height of the building.

2nd :
cos 30° = (adjacent side)/(hypotenuse)
cos 30° = x/100, but cos 30°= (√3)/2

(√3)/2 = x/100 and x = (100√3)/2

and x = (50.√3) = 86.60 m

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3 years ago

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<img src="https://tex.z-dn.net/?f=9%5C%3A%20%20%5C%3A%20%20%5Cfrac%7B%20%5Csin%28%20%5Ctheta%29%20%7D%7B1%20%2B%20%20%5Ccos%28%2

PIT_PIT [208]

Option (b) is your correct answer.

Step-by-step explanation:

$\large\underline{\sf{Solution-}}$

Given Trigonometric expression is

$\rm :\longmapsto\:\dfrac{sin\theta }{1 + cos\theta }$

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$\rm \: = \: \dfrac{sin\theta }{1 + cos\theta } \times \dfrac{1 - cos\theta }{1 - cos\theta }$

We know,

$\purple{\rm :\longmapsto\:\boxed{\tt{ (x + y)(x - y) = {x}^{2} - {y}^{2} \: }}}$

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We know,

$\purple{\rm :\longmapsto\:\boxed{\tt{ {sin}^{2}x + {cos}^{2}x = 1}}}$

So, using this identity, we get

$\rm \: = \: \dfrac{sin\theta (1 - cos\theta )}{{sin}^{2}\theta }$

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2 years ago

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myrzilka [38]

A principle square root of a real number that's not negative, such as 49, is the square root of that number that is not negative.

If you take the square root of 49, you get either -7 or 7, since both $7^{2}$ and $(-7)^{2}$ equal 49. However, the principle square root would be A) 7, since it's not negative.

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3 years ago

What is the results of adding these two equations?<br> 6x+2y=-2<br> 3x-2y=-5

Bess [88]

Answer:

x=-7/9, y=4/3. (-7/9, 4/3).

Step-by-step explanation:

6x+2y=-2

3x-2y=-5

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-42/9+2y=-2

2y=-2-(-42/9)

2y=-2+42/9

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3 years ago

If a square has an area of 100 ft squared, what is the measure of each side? Explain? HELPP

Gekata [30.6K]

Answer

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Since its squared the easiest way to figure out the sides is to square root the area and square root of 100 is 10

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