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4 years ago

Acccording to this diagram what is cos 28

Mathematics

2 answers:

Flura [38]4 years ago

6 0

Answer:

Option B is the correct option.

Here,

Adjacent=15

Hypotenuse=17

Now,

$cos \: theta = \frac{adjacent}{hypotenuse} \\ cos \: 28 = \frac{15}{17}$

Hope this helps..

Good luck on your assignment..

ololo11 [35]4 years ago

4 0

Answer:

B. 15/17

Step-by-step explanation:

(see attached graphic for reference)

Because we have a right triangle (i.e one of the internal angles is 90 degrees), we can use trigonometry to solve

from the diagram, we can see that

cos 28° = adjacent length / hypotenuse

we can also see that the length adjacent to 28° = 15 units and the hypotenuse is 17 units,

hence, substituting these values into the equation:

cos 28° = 15 / 17 (answer)

edit: typo

You might be interested in

How do you factorise x^2 - 9.

Zinaida [17]

X ^ 2 - 9

= x ^ 2 - 3 ^ 2

It turns into 3 ^ 2
Because 3 ^ 2 = 9

The final answer is
= ( x + 3 )( x - 3 )

remember the formula :

a^2 - b^2 =(a+b)(a-b)

4 0

4 years ago

Whole numbers are _____ integers. . . . .A. always. B. sometimes. C. never

guapka [62]

Whole numbers are sometimes integers.

$\boxed{ \ The \ Answer \ is \ B \ }$

<h3>Further explanation</h3>

The set of natural numbers (also called the set of counting numbers) is denoted by N: $\boxed{ \ N = \{1, 2, 3, ...\} \ }.$
Natural numbers together with zero called are called whole numbers. The set of whole numbers is denoted by W: $\boxed{ \ W = \{0, 1, 2, 3, ... \} \ }.$
The set of natural numbers are not enough for all the number problems in everyday life. For example, natural numbers cannot be used to write some winter temperatures, since such temperatures may be less than zero i.e., negative numbers.
The set of integers are the union of the set of negative numbers with the set of natural numbers and zero. The set of integers is denoted by Z: $\boxed{ \ Z = \{..., -3, -2, -1, 0, 1, 2, 3, ... \} \ }.$
The set of negative integers is denoted by Z⁻: $\boxed{ \ Z^- = \{ ..., -3, -2, -1 \} \ }.$
The set of positive integers is denoted by Z⁺: $\boxed{ \ Z^+ = \{1, 2, 3, ... \} \ }.$
The set of non-negative integers are the set of all positive integers together with zero.
The set of non-positive integers are the set of all negative integers together with zero.

Conclusion:

Whole numbers are sometimes integers because negative integers are not part of whole numbers. In other words, whole numbers are not fully integers.

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

Examples of integers around us:

The height of an airplane flight typically between 31,000 and 38,000 feet.
Ice melts at 0⁰C.
This diver is swimming at -20 m.

<h3>Learn more</h3>

9 ten thousand divided by 10 in unit form brainly.com/question/4786449
What represents the simplified form of an expression: 5(14 - 2)² ÷ 2 brainly.com/question/1602237
Explanations and an example of a question about the four types of number form brainly.com/question/4725342

Keywords: whole numbers are sometimes integers, always, never, natural, counting, zero, negative integers, positive, the set