Answer:
<u>There are 380 ways that 1st and 2nd place can be determined in the race</u>
Step-by-step explanation:
There are 20 possibilities for determine the 1st place
There are 19 possibilities for determine the 2nd place
Number of ways that 1st and 2nd place can be determined = 20 * 19
Number of ways that 1st and 2nd place can be determined = 380
Answer:
cos 225° = 
sin 225° =
tan 225° = 1
Step-by-step explanation:
I cannot sketch a diagram, but a 225° angle is a 3rd quadrant angle and the reference angle is 45° (225 - 180 = 45)
cos and sin are negative in the 3rd quadrant and the tan is positive
cos 225° = - cos 45° =
sin 225° = -sin 45° =
tan 225° = tan 45° = 1
Answer:-72
Step-by-step explanation:
(6)*(-12)
-72
Answer:
a car finish a certain journey of 10 km in = 48 km/h. 10 h = 48 * 10 = 480
Step-by-step explanation:
let me know if this helped
Answer:
4x <= 20
x <= 5
A single cupcake can cost at most $5.
Step-by-step explanation:
Let the price of a single cupcake be x.
We know that there are 4 cupcakes in a box, so 4x is equal to the price of 4 cupcakes and hence the price of a box.
The question tells us that a box costs at most $20, so we can write this as an inequality:
4x <= 20
Divide both sides by 4 to isolate and solve for x:
x <= 5
x is less than or equal to 5, which can be interpreted as a cupcake costing at most $5.
