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Basile [38]
3 years ago
11

Which of the following equals cos 80°A) sin 20°B) sin 100°c) sin 10°D) sin 80°​

Mathematics
1 answer:
astraxan [27]3 years ago
6 0

Answer:

C

Step-by-step explanation:

Using the Cofunction identity

sin(90 - x)° = cos x°, hence

cos80° = sin(90 - 80)° = sin10° → C

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Carla's retirement party will cost $15 if she invites 3 guests. If there are 4 guests, how much will Carla's retirement party co
LekaFEV [45]

Answer:

$20

Step-by-step explanation:

15/3=5 which means that for every guest attending Carla's retirement party it must cost her $5 each.

Therefore if 4 guests come to the party it must mean 4(5) which is 20.

Hence $20

7 0
3 years ago
Read 2 more answers
What is a reasonable estimate for the problem ? -3/2 multiply by ( -5 1/4 )
Nat2105 [25]
= -3/2 * -5 1/4
convert 5 1/4 to improper fraction

= -3/2 * -21/4
multiply numerators; multiply denominators

= (-3*-21)/(2*4)
multiply in parentheses

= 63/8
convert back to mixed number

= 7 7/8


ANSWER: Since the exact answer is the mixed number 7 7/8, a reasonable estimate is 8.

Hope this helps! :)
5 0
3 years ago
Read 2 more answers
Can someone help me?
juin [17]

Answer:

5/12

Step-by-step explanation:

8 0
3 years ago
A video club wants to reward its best members with a discount based on the member’s number of movie rentals and the number of ne
ivanzaharov [21]

Answer:

public class MovieRental

{

public static void main(String[] args)

{

 Scanner in = new Scanner(System.in);

 

 System.out.print("Enter the number of movie rentals: ");

 int movieRentals = in.nextInt();

 

 System.out.print("Enter the number of members referred to the video club: ");

 int memberReferral = in.nextInt();

 

 in.close();

 

 double discountVal = Math.min(movieRentals + memberReferral, 75);

 

 System.out.println("The discount is equal to: " + discountVal);

}

}

8 0
2 years ago
What is the length of the side of the triangle labeled x?
cricket20 [7]
It’s C
You would use cos for this equation
Cos(45)= x/5
5 x cos(45
And when you put that in the calculator you will get that answer C
5 0
2 years ago
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