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jarptica [38.1K]
2 years ago
9

What is the domain of the sine and cosine functions?

Mathematics
2 answers:
tatiyna2 years ago
6 0

Remember that the domain is all possible x values of a function. In the case of sine and cosine functions, they go up and down (like waves), but go on forever. Therefore, the domain is all real numbers.

Correct Answer: B, All Real Numbers

Hope this helps!

adell [148]2 years ago
5 0
<h3>Answer: B.  All real numbers</h3>

Explanation:

For the equations y = sin(x) and y = cos(x), we can replace x with any real number we want. The output y value will be between -1 and 1, inclusive of both endpoints.

The graph for each function shows a bouncing wave stretching forever to the left and right. This visually confirms the domain.

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An art dealer is trying to determine whether the age of a painting plays a significant role in its price at auction. She collect
klasskru [66]

Answer:

-0.20

Step-by-step explanation:

Given the data:

Age at auction (x) ____price sold (y)

391

51

32

84

47

104

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43

470

51

Y:

76.9

95.4

86.3

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General formula for a simple linear regression :

y = ab + c

Where ;

y = predicted variable ; a = slope / gradient

b = predictor / independent variable ; c = intercept

From the result obtained from the calculator :

y = -0.01246X + 74.65552

Correlation Coefficient is used to measure the strength of relationship between linear variables.

The regression Coefficient obtained is - 0.20

This shows that there is a weak negative correlation between the age at auction and the price at which painting is sold. This is because the negative sign means that value of y decreases as x increases or vice versa, however, due to a correlation vale which is closer to 0 than 1 or - 1, we can conclude that the negative relationship between the variables is weak.

5 0
2 years ago
At a toy shop, 45 toys were sold in September. A bonus will be giver workers if they can increase sales by 40% in October. How m
harkovskaia [24]

Answer:

6.  45 × (1 + 0.4) = 63

8 0
2 years ago
Proof. Give: &lt;1 and &lt;2 are complementary, angle 1 is congruent to angle 3 and angle 2 is congruent to angle 4. Prove: angl
dangina [55]
<1 and <2 are complementary : given
<1+<2=90 : definition of complementary
<1 congruent <3 : given
<2 congruent <4 : given
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5 0
3 years ago
a) A group of 50 people are going to run a race. The top three runners earn gold, silver, and bronze medals. b) Creating a nine
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a) n (No. of peoples) = 50

r (No. of prizes) = 3

p(n,r) = p (50,3)

\begin{gathered} P(n,r)=\frac{n!}{(n-r)!} \\ P(50,3)=\frac{50!}{(50-3)!} \\ =117600 \end{gathered}

b) n(No. of players)=14

r (No. of players for Batting)=9

\begin{gathered} P(14,9)=\frac{14!}{(14-9)!} \\ =726485760 \end{gathered}

c)n(Total applicants)=30

r(tester positions)=4

\begin{gathered} P(30,4)=\frac{30!}{(30-4)!} \\ \text{              =}\frac{30!}{26!} \\ \text{              =657720} \end{gathered}

7 0
9 months ago
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Minchanka [31]

Answer:

what's the equation??

Step-by-step explanation:

I'll help anytime

8 0
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