Answer:
the time taken for the ball to hit the ground is 9.4s
Answer:
14
Step-by-step explanation:
7*2y+27
14y+27
14 is coefficient of variable y
Answer:
84.26° in the south west direction.
Step-by-step explanation:
I've attached an image showing the triangle formed by the motion of the plane and the wind.
I've depicted the plane being pushed west and the wind moving south west.
Thus, the direction of motion of the plane will be angle θ.
Using trigonometric ratios;
25/250 = cos θ
cos θ = 0.1
θ = cos^(-1) 0.1
θ = 84.26°
Thus will be in the south west direction.
Answer:
13
Step-by-step explanation:
The slope of the regression shows the average increase in response variable due to unit increase in explanatory variable. The regression equation of structure y=a+bx has slope=b.
The given regression equation y^=85+13x shows that the slope in the given equation is b=13. The response variable is amount of natural gas is used and explanatory variable is outside temperature in this case.
So, we can say that on increase of every unit of degree day the amount of gas used increase by 13 cubic feet.
The answer would be, correct me if I'm wrong, Geoff is 11 and Warden is 26...
I got this because if he's twice the age and he's 15 years older then he would be twice of 15 or 30, making Geoff 15 and Warden 30, subtract the 4 years from both and you get 11 and 16