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Marianna [84]
2 years ago
15

If the sin 30° = one half, then which statement is true?

Mathematics
1 answer:
Oliga [24]2 years ago
4 0

Answer:

cos 60° = one half because the angles are complements

Step-by-step explanation:

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A group surveyed a mix of people below and above 40 years old about whether or not they visit a dentist once a year. This table
Rama09 [41]

The frequency table that shows the relative frequency of people older than 40 and don't visit the dentist is:

D.                  Visit Dentist Yearly Don’t Visit Dentist Yearly

Below 40                    0.27                         0.73

Above 40                   0.57                          0.43

<h3>What is the relative frequency required?</h3>

The relative frequency of those older than 40 and don't go annually to a dentist can be found as:

= Number of over 40 who don't go to dentist / Total of those over 40 surveyed

Solving gives:

= 13 / (17 + 13)

= 13 / 30

= 0.43

Find out more on relative frequency at brainly.com/question/16832475.

#SPJ1

4 0
1 year ago
2.7, #41 please. Thanks in advanced.
djverab [1.8K]

sara speed is half of Jeanette's so if jeanette ran 7 miles then her walking speed is 3.5MPH and sense she is 7 miles ahed sara is 10.5 miles behind... 3.5MPH which is jeanette speed is double than sara so 3.5/2 is 1.75MPH... Saras walking speed is 1.75MPH

5 0
2 years ago
What is 2160 minus 1600 long way
lilavasa [31]
Hey there, Lets solve this problem together. 

The First step is to line up the numbers. 

=  2160&#10;&#10;- 1600 

\mathrm{Subtract\:each\:column\:of\:digits,\:starting\:from\:the\:right\:and\:working\:left} 

<span>We calculate </span>0-0<span>the result of which is </span>0<span> 
</span>
<span>We calculate </span>6-0<span> the result of which is </span>6<span>.
</span>
Since we get a negative number in the next column, we must take 1 from the next column and carry it over to this column. Now the number will be changed to 10.

We calculate 10+1-6, and the result is 5. 

<span>We calculate </span>2-1-1<span> the result of which is</span>0<span>. 
</span>
Therefore, 

2160 - 1600 = 0560 
8 0
2 years ago
What point is an x-intercept of the quadratic function f(x)=(x+6)(x-3)
Katyanochek1 [597]
X-intercept is (-6, 0) , (3, 0)

7 0
3 years ago
Ann ran 7 miles on Monday, 6 miles yesterday, and 8 miles today. If she runs an unknown number of miles tomorrow, how many miles
Airida [17]

Answer:

21+m m=miles on the unknown day amount

Step-by-step explanation:

It depends if its about the patterns

You could put a number such as five or nine so I just put up the equation to it

6 0
3 years ago
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