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sesenic [268]
3 years ago
7

6) From a point on the ground 15 ft. From the base of a flagpole, the angle of elevation of the top of the pole measures 57°. Ho

w tall is the flagpole?
Mathematics
1 answer:
ycow [4]3 years ago
8 0

Answer:23.1 ft

Step-by-step explanation:

Given

Point is 15 ft away from the base of the flagpole

The angle of elevation is 57^{\circ}

from the figure, we can write

\Rightarrow \tan 57^{\circ}=\frac{Y}{15}\\\\\Rightarrow Y=15\times \tan 57^{\circ}=23.09\approx 23.1\ ft

The length of the flagpole is 23.1 ft

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Answer:

7.3

Step-by-step explanation:

Two minuses, one minus inside a bracket and one outside, make a plus.

2-(-5.3) = 2+5.3

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Chen has 17CDs. She gives 2 to her brother and buys 4 more. Her brother gives her 1 and she gives 3 to her best friend. How many
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Answer: she has 17 CDs now.

Step-by-step explanation:

The total number of CDs that Chen had initially is 17.

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Directions: Place the LETTER of each value in its location in the real number system below.
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The most restrict classification of the numbers are given as follows:

  • Natural: 23.
  • Whole: 0.
  • Integer: -15/5 = -3, -1 and -sqrt(49) = -7.
  • Rational: 2.123, 3 and 1/4, 0.4 bar(F), square root of 16/25.
  • Irrational: π, -sqrt(35).

<h3>Which numbers are natural?</h3>

Natural numbers are positive numbers that do not have a decimal part. Hence among those, the natural numbers is: 23.

<h3>Which numbers are whole?</h3>

Whole numbers are non-negative numbers that do not have a decimal part. Hence among those, the whole number is: 0.

<h3>Which numbers are integers?</h3>

Integers are positive or negative numbers that do not have a decimal part, hence, for this problem, the integer numbers are: -15/5 = -3, -1 and -sqrt(49) = -7.

<h3>Which numbers are rational?</h3>

Fractions and terminating decimal numbers are rational, hence:

2.123, 3 and 1/4, 0.4 bar(F), square root of 16/25.

<h3>Which numbers are irrational?</h3>

Non-terminating and non-repeating decimals, such as non-exact square roots.

Hence the irrational numbers are:

π, -sqrt(35).

More can be learned about classification of numbers at brainly.com/question/13325494

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