Answer:
BC = 2.24 cm
AC = 1.99 cm
Step-by-step explanation:
well to start we have to know the relationships between angles, legs and the hypotenuse.
a: adjacent
o: opposite
h: hypotenuse
sin θ = o/h
cos θ= a/h
tan θ = o/a
θ = 40°
h = 3cm
a = AC
o = BC
first let's calculate BC
sin θ = o/h
o = sin θ * h
o = sin 40 * 3
o = 0.7451 * 3
o = 2.24 cm
BC = 2.24 cm
having one leg and the hypotenuse we can calculate the other leg with pitagoras
h^2 = c1^2 + c2^2
3^2 = 2.24^2 + AC^2
9 = 5.02 + AC^2
AC^2 = 9 - 5.02
AC = √ 3.98
AC = 1.99
Answer:
-7
Step-by-step explanation:
B, a rectangle is Always a parallelogram but a parallelogram is not always rectangular
Answer:
What math is this?
Step-by-step explanation:
To solve this problem, let's use some numbers to help us compare.
Say each tire costs $100.
Deal 1: Buy 3, get 1 free
Total = $300
Ratio = 3:4
---To find the ratio, we'll take the deal price and compare it to the original price ($400)
Deal 2: 1/4 off the total price
1/4 of 400 = 100
400 - 100 = 300
Total = $300
Ratio = 3:4
Therefore, the deals are equivalent.
Correct Answer: D
Hope this helps!