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vitfil [10]
3 years ago
6

If the sin 90° = 1, then the cos 0° = _____. (1 point)

Mathematics
2 answers:
tatyana61 [14]3 years ago
8 0

Answer:

cos 0° = 1

Step-by-step explanation:

In given triangle sin 90° = 1

and we know the relation between cosine and sin is represented by

sin x = cos (90-x)

Therefore, sin 90° = cos ( 90-90 )

                              = cos 0°

                              = 1

Therefore, cos 0° = 1 will be the answer.

Cloud [144]3 years ago
7 0
<span>sin 90° = 1
</span>
cos 0° = 1

There's a simple formula : <em>sin θ = cos (90°- θ)</em> or <em>cos θ = sin (90°- θ) </em>

So : cos 0° = sin (90° - 0°) = sin 90° = 1


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Write in terms of inequalities: (-13,4]
anzhelika [568]

9514 1404 393

Answer:

  -13 < x ≤ 4

Step-by-step explanation:

The round bracket means the lower limit is not included in the interval. The square bracket means the upper limit is included.

  -13 < x ≤ 4

8 0
2 years ago
sixteen dictionaries weigh 11.52 pounds all together. each dictionary has the same weight in pounds,how much does one dictionary
iogann1982 [59]

Answer:

1.92 Pounds per dictionary


Step-by-step explanation:

Since 6 dictionaries weigh 11.52 pounds, and each of the dictionaries weigh the same, this is a simple division problem.

11.52/6=1.92


3 0
3 years ago
Help!!
ioda

We might choose to write a recursive formula rather than an explicit formula to define a sequence because (D) the sequence is strictly geometric.

<h3>What is a sequence?</h3>
  • A sequence in mathematics is an enumerated collection of items in which repetitions are permitted and order is important. It, like a set, has members (also called elements, or terms).
  • The length of the series is defined as the number of items (which could be infinite).
  • Unlike a set, the same components can appear numerous times in a sequence at different points, and the order does important.
  • Formally, a sequence can be defined as a function from natural numbers (the sequence's places) to the elements at each point.
  • The concept of a sequence can be expanded to include an indexed family, which is defined as a function from an index set that may or may not contain integers to another set of elements.

Recursive formulas are commonly used to compute the nth term of a sequence, where a(n) is the sum of all the preceding values.

Using its position, explicit formulas can compute a(n).

Therefore, we might choose to write a recursive formula rather than an explicit formula to define a sequence because (D) the sequence is strictly geometric.

Know more about sequences here:

brainly.com/question/6561461

#SPJ4

7 0
2 years ago
If the graph of the linear equation ax-8y=15 has an x-intercept at (3,0), then what is the value of a?
mart [117]
Ax-8y=15
a(3)-8(0)=15
3a=15
a=5
4 0
3 years ago
on a bookshelf there are 5 paperback books and 3 hardcover books is the ratio of books to hardcover books 5:3 explain
Lana71 [14]

Answer: no

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6 0
3 years ago
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