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Grace [21]
4 years ago
8

A surveyor is standing 50 feet from the base of a building. The angle of elevation to the top of the building is 60°. Approximat

ely how tall is the building?
Mathematics
1 answer:
babunello [35]4 years ago
5 0
We have to find how tall is the building if a surveyor is standing 50 ft from the base of the building and the angle of elevation to the top of the building is 60°.tan 60° = h / 501.732 = h / 50h = 50 · 1.732h = 86.6 ft.Answer: The height of the building is 86.6 ft.

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An object of mass weighing 5.24 kilograms is raised to a height of 1.63 meters. What is the potential energy of the object at th
Trava [24]
<span>Find force,
9.8 m/s2 x 5.24 kg = </span><span>51.352 N </span>

Find work,
<span><span>51.352 N x 1.63 m=  </span><span>83.70 N*m


</span>
Example:
To solve this given word problem we can first identify the given and the apt formula to use in this phenomenon: Given: Force = 4, 500 N = 4, 500 kg-m/s^2 Acceleration = 5 m/s^2   </span>
<span>Formula: f=ma </span>
<span>Derivation: m = f/a </span>
<span>Solution: </span><span><span>
1.    </span>M = f/a</span> <span><span>
2.    </span>M = 4,500 kg-m/s^2 / 5 m/s^2</span> <span><span>
3.    </span>M = 900 kg  </span> 

<span>Hence, the object’s mass is </span>900 kg.<span>
</span>



6 0
4 years ago
Read 2 more answers
7y-12-3y+9=0 help please
nasty-shy [4]

Simplify. Combine like terms

7y - 3y = 4y

-12 + 9 = -3

----------------------------------------------------------------------------------------------------------------

4y - 3 = 0

Isolate the y. Note the equal sign. What you do to one side, you do to the other side. Do the opposite of PEMDAS.

4y - 3 (+3) = 0 (+3)

4y = 3

4y/4 = 3/4

y = 3/4

-----------------------------------------------------------------------------------------------------------------

y = 3/4 is your answer

-----------------------------------------------------------------------------------------------------------------

hope this helps

3 0
3 years ago
Read 2 more answers
What is the answer pls help
Diano4ka-milaya [45]

Answer:

It is D) 4/5

Step-by-step explanation:

7 0
3 years ago
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Matthew is a salesman and earns commission on merchandise he sells. Last week he sold $7000 in merchandise. How much money does
MariettaO [177]

Answer:

I think the commission amount is $210

5 0
3 years ago
Read 2 more answers
What are the solutions of the inequality? -2(3x + 2) ≥ -6x - 4 Question 2 options: all real numbers x ≤ 6 no solution x ≥ 0
Tju [1.3M]

Solution, -2\left(3x+2\right)\ge \:-6x-4\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:True\quad \forall \:x\in \mathbb{R}\:\\ \:\mathrm{Interval\:Notation:}&\:\left(-\infty \:,\:\infty \:\right)\end{bmatrix}

Steps:

-2\left(3x+2\right)\ge \:-6x-4

\mathrm{Expand\:}-2\left(3x+2\right),\\\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac,\\a=-2,\:b=3x,\:c=2,\\-2\cdot \:3x+\left(-2\right)\cdot \:2,\\\mathrm{Apply\:minus-plus\:rules},\\+\left(-a\right)=-a,\\-2\cdot \:3x-2\cdot \:2,\\\mathrm{Simplify}\:-2\cdot \:3x-2\cdot \:2,\\\mathrm{Multiply\:the\:numbers:}\:2\cdot \:3=6,\\-6x-2\cdot \:2,\\\mathrm{Multiply\:the\:numbers:}\:2\cdot \:2=4,\\-6x-4,\\-6x-4\ge \:-6x-4

\mathrm{Add\:}4\mathrm{\:to\:both\:sides},\\-6x-4+4\ge \:-6x-4+4

\mathrm{Simplify},\\-6x\ge \:-6x

\mathrm{Add\:}6x\mathrm{\:to\:both\:sides},\\-6x+6x\ge \:-6x+6x

\mathrm{Simplify},\\0\ge \:0

\mathrm{Therefore,\:the\:final\:solution\:is},\\True\quad \forall \:x\in \mathbb{R}

Or\:No\:Solution\:x\geq 0


8 0
3 years ago
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