Draw a right triangle ABC so that m∠C = 90°
The lengths are:
Side a is opposite ∠A,
Side b is opposite ∠B,
Side c (the hypotenuse) is opposite ∠C
Because cos A = x, therefore
x = b/c => b = cx (1)
Because sin A = y, therefore
y = a/c => a = cy (2)
By definition,
tan A = a/b
= (cy)/(cx)
= y/x
Answer: b. y/x
Answer:
temperature ≤ 6
Step-by-step explanation:
The highest temperature in February was 6°F. Write and graph an inequality to represent this situtation.
If the maximum temperature was 6, then the temperature reached no more than six, while still reaching 6. Thus, the inequality should be
temperature ≤ 6
The graph would be a filled dot on the 6 pointing towards the left side of the graph (towards the -10 side)
Answer: 8 invitations each
Step-by-step explanation:
Ms. Candos has 90 invitations from which she will hand out 42 by herself. The number of invitations left will be:
= 90 - 42
= 48 invitations
There are 6 students to share out the rest. They will hand out:
= 48 / 6 students
= 8 invitations each
The summation of negative 5 n minus 1, from n equals 3 to 12 can be
expressed as
n = 3/12
substitute the value of n to the equatio
-5n – 1
-5( 3/12 ) -1
-9/4
