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DiKsa [7]
3 years ago
9

Find the exact value of sin 13pi/6

Mathematics
1 answer:
enyata [817]3 years ago
3 0

Answer: 0

Step-by-step explanation:

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Find three consecutive odd integers such that when the third is subtracted from five times
Ne4ueva [31]

9514 1404 393

Answer:

  99, 101, 103

Step-by-step explanation:

Let x represent the smallest. Then the sum of the first two is (x+x+2) and the third is x+4. The problem statement tells us the relation ...

  5(2x +2) -(x +4) = x +798

  10x +10 -x -4 = x +798

  8x = 792

  x = 99

The integers are 99, 101, 103.

__

<em>Check</em>

  5(99 +101) -103 = 99 +798

  897 = 897 . . . . answer checks OK

3 0
3 years ago
In a survey, 26% of those questioned chose summer as their favorite season. If 13 people chose summer, then how many people were
butalik [34]
200 people would have been surveyed
8 0
4 years ago
The plane is tiled by congruent squares of side length $a$ and congruent pentagons of side lengths $a$ and $\frac{a\sqrt{2}}{2}$
umka2103 [35]

The percentage of this plane that's enclosed by the pentagons is closest to: D. 56.

<h3>How to determine the percentage?</h3>

Since the side of the small square is a, then the area of the tile is

given by:

Area of tiles = 9a²

<u>Note:</u> With an area of 9a², 4a² is covered by squares while 5a² by pentagons.

This ultimately implies that, 5/9 of the tiles are covered by pentagons and this can be expressed as a percentage as follows:

Percent = 5/9 × 100

Percent = 0.555 × 100

Percent = 55.5 ≈ 56%.

Read more on area of square here: brainly.com/question/8902873

#SPJ1

Complete Question:

The plane is tiled by congruent squares of side length a and congruent pentagons of side lengths a and a²/a, as arranged in the diagram below. The percent of the plane that is enclosed by the pentagons is closest to (A) 50 (B) 52 (C) 54 (D) 56 (E) 58

3 0
2 years ago
Which expressions show how to calculate the volume of this prism? Check all that apply. 1 + 7(4) 1(4)(7) 4(4)(4) 4 + 1 + 7 4(7)(
lyudmila [28]

Answer:

1(4)(7)

4(7)(1)

7(4)(1)

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Write 5/8 and 9/14 so that they have a comon denominatr
valentina_108 [34]

The denominator is the bottom portion of the fraction. Example 4/6, the 6 is the denominator. The easiest way to start out in finding the common denominator is to see what number, 8 and 14, go into equally. Example: 1/4 and 1/3, 3 and 4 both go into 12. If you multiply 4 by 3 as well as 3 by 4 you get 12 both times. Now try it with 8 and 14.

What number can 8 and 14 go into equally? (56)

8x7=56...14x4=56

4 0
3 years ago
Read 2 more answers
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