Answer:
R= {a,b,c}
S = {b, c, d}
T = {c, d, e},
Step-by-step explanation:
R U S U T. ={a,b,c}U{b, c, d}U{c, d, e},={a,b,c,d,e}
Answer:
$506,000
Step-by-step explanation:
Its 110 cuz it goes up 10% if it was 20% it would be 120
Answer:
19°
Step-by-step explanation:
I have attached an image showing this elevation.
From the image, let's first find the angle A by using cosine rule.
Thus;
8.1² = 5.5² + 13.1² - 2(5.5 × 13.1)cos A
65.61 = 30.25 + 171.61 - 144.1cos A
144.1cos A = 171.61 + 30.25 - 65.61
144.1cosA = 136.25
cosA = 136.25/144.1
cosA = 0.9455
A = cos^(-1) 0.9455
A = 19°
That is not correct. I just took the test and the answer is 2/3