n a group of 40 people, 10 people are healthy. The 30 unhealthy people have either high blood pressure, high cholesterol, or bot
h. Suppose 15 have high blood pressure and 25 have high cholesterol. If a person is randomly selected from this group, what is the probability that they have both high blood pressure and high cholesterol
The square root of 78 is a number which when multiplied by itself results in 78. The square root of 78 is denoted by √78. 78 can be expressed as 78 = 2 × 3 × 13. Hence, on simplifying square root of 78 is written as √78
It is is a parallelogram, hence we have to face sides equal in length and the opposite angles are also the same. From the given above we have: ab=14 and its opposite side cd=14 bc=20 and its opposite side da=20
Solving for the diagonal measurement bd, we have consecutive angles are equal to 180° ∠A+∠B=180° ∠A=180°-54° ∠A=126° , ∠B=54° ,∠C=126° and ∠D=54° bd²=ab²+da²-2(ab)(da)cos126° bd²=14²+20²-2*14*20cos126° bd=30.42 unit
Solving for the angle dbc, we have cos dbc=bc²+bd²-cd²/a*bc*bd cos dbc=20²+30.42²-14²/2*20*30.42 dbc=21.76°