2 years ago

Solve: Picture Below

Mathematics

1 answer:

kkurt [141]2 years ago

4 0

Answer: 8/3 or 2 2/3

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You and another person are sunbathing on the beach near a lifeguard station. The other person chooses a spot that is the same di

Schach [20]

Answer: 26.8 feet

Step-by-step explanation:

In the figure attached you can see two right triangles triangle ABD and a triangle ACD.

You are located at point B and the other person at point C.

The approximate height of the lifeguard station is x.

Keep on mind that:

$tan\alpha=\frac{opposite}{adjacent}$

Therefore:

For the triangle ABD:

$tan(36\°)=\frac{x}{DC+11}$ [EQUATION 1]

For the triangle ACD:

$tan(46\°)=\frac{x}{DC}$ [EQUATION 2]

Solve from DC from [EQUATION 2]:

$DC=\frac{x}{tan(46\°)}$

Substitute into [EQUATION 1] and solve for x:

$tan(36\°)=\frac{x}{(\frac{x}{tan(46\°)}+11)}\\tan(36\°)(\frac{x}{tan(46\°)}+11)=x\\11*tan(36\°)=x-\frac{xtan(36\°)}{tan(46\°)}\\7.991=0.298x$

$x=26.81ft$ ≈26.8ft

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3 years ago

Follow the process of completing the square to solve 2x2 + 8x - 12 = 0. After adding B2 to both sides of the equation in step 4,

valentina_108 [34]

2x2 + 8x - 12 = 0
4 + 8x - 12 = 0
8x = 12 - 4
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x = 1

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3 years ago

QOTD: What's 658x923? Do NOT use a calculator. Whoever, answers this correctly, I will give BRAINLIEST.

Helga [31]

Answer:

the awnser is 607,334 because when you multiply by 3 its the same like multipliying on

Step-by-step explanation:

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2 years ago

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EXPONENTS: What is the value of 7 cubed? A. 14 B. 21 C. 49 D. 343

quester [9]

Answer:

Step-by-step explanation:

7*7=49

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3 years ago

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What is 12/4 plus 18 as a fraction

Alona [7]

Answer:

Step-by-step explanation:

12/4.+18

The lcm is 4.

12+4(18) all divided by 4

12+72=84

84/4=21

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3 years ago

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