Use Pythagorean theorem to find BC
AB^2 + BC^2 = AC^2
6^2 + BC^2 = 10^2
36 + BC^2 = 100
BC^2 = 64
BC = 8
If AC = 10, CD and AD = 5
Tan = opp/adj
Tan = 5/8
Triangle BCD is a 45-45-90 triangle
CD = BD = 5
Sec = inverse cos
sec = hyp/adj
Sec = 8/5
Answer:the price of the sweater was reduced by 40%
Step-by-step explanation:
hope this helps
Answer:
The number is 133.5
Step-by-step explanation:
Let the number = x
2/3 * x = 89 Multiply by 3
2x = 89 * 3 Combine
2x = 267 Divide by 2
x = 133.5
Answer:
C.37
Step-by-step explanation:
Answer:
A) 6x + 6y = 24, Yes, they have the same solution set
Step-by-step explanation:
Let's first start by multiplying the equation by 3:
(2*3)x + (2*3)y = 24
6x + 6y = 24
Now lets find the solution set for both:
6y = -6x + 24
y = -x +4
2y = -2x + 8
y = -x +4
Yes, they have the same solution set