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fgiga [73]
3 years ago
6

A person can see the top of a building at an angle of 65°. The person is standing 50 ft away from

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
6 0

9514 1404 393

Answer:

  (b)  112.2 ft

Step-by-step explanation:

The relevant trig relation is ...

  Tan = Opposite/Adjacent

For the given geometry, this becomes ...

  tan(65°) = (height above eye level)/(50 ft)

Then we have ...

  (height above eye level) = (50 ft)tan(65°) = 107.2 ft

Adding the height of eye level will give us the height of the building.

  building height = (eye level height) + (height above eye level)

  building height = (5 ft) + (107.2 ft)

  building height = 112.2 ft

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Alika [10]

Answer:

Step-by-step explanation:

a) (a + b)² = (a + b) * (a +b)

  (a + b)³  = (a + b) * (a +b) * (a +b)

 a²- b² = (a +b) (a - b)

Here (a + b) is common in all the three expressions

HCF = (a + b)

b) (x - 1) = (x - 1)

  x² - 1  = (x - 1) * (x + 1)

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7 0
3 years ago
(3x5 y2)(6x3y7) simplify
vladimir2022 [97]

Answer:

(1): "x7"   was replaced by   "x^7".  1 more similar replacement(s).

Equation at the end of step 1

 (0 -  (3 • (x5))) • (2•3x7)

Equation at the end

 (0 -  3x5) • (2•3x7)

Multiplying exponential expressions

3.1    x5 multiplied by x7 = x(5 + 7) = x12

Multiplying exponents:

3.2    31  multiplied by  31   = 3(1 + 1) = 32

Final result :

 ( -32•2x12)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
You spend $56 dollars on food and beverages. You spent $18 more on food than on beverages.
mylen [45]

Answer:

in to total it is 130 or beverages is 74

Step-by-step explanation:

More means add so you would add 18 to 56

5 0
3 years ago
A cone-shaped pile of sawdust has a base diameter of 20 feet, and is 7 feet tall. Find the volume of the pile.
Phoenix [80]

Answer:

About 733.04 feet


Step-by-step explanation:

Volume of Cone is given by the formula  V=\frac{1}{3}\pi r^2h

Where

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  • r is the radius
  • h is the height

Given height as 7 ft, and radius is 10 feet (Radius is half of diameter(20))

<em>Substituting into formula, we get:</em>

V=\frac{1}{3}\pi r^2 h\\V=\frac{1}{3}\pi (10)^2(7)\\V=\frac{700\pi}{3}\\V=733.04 ft

7 0
4 years ago
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Explain how you can tell if the expressions 7x – 4 and 6x – 4 – x are equivalent using the interactive tool.
Eddi Din [679]

Answer:

commutative property: the property stating that changing the order in which two numbers are added or multiplied does not change the value of the sum or product

equivalent: having the same amount, value, area, volume, or force

evaluate: to determine the value of

like terms: terms consisting of the same variables, raised to the same exponent

Step-by-step explanation:

TRUST me this is RIGHT

6 0
3 years ago
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