Given parameters:
Equation of the line given 2x - 7y = 13
Coordinates of points = -3, 8
Unknown:
Equation of a line perpendicular = ?
Solution;
To find the equation of this line, simply find the negative inverse of the given line.
m =
2x - 7y = 13 , this is an equation of a straight line
let us write it in the form y = mx + c so as to derive the slope
y and x are coordinates
m is the slope
c is the y intercept
2x - 7y = 13;
-7y = -2x + 13
divide through by -7;
y = +
The slope of this line is ;
Now the slope of a line perpendicular to it will be ;
the equation of the line will be;
y =
Since the coordinate of this line is (-3,8) , let us find C;
y = 8 and x = -3;
8 = (-3) + C
multiply through by 2;
16 = 21 + 2C
16 - 21 = 2C
-5 = 2C
C =
Now the equation of the line is;
y =
Im pretty sure the answer is 320
I did this by doing 240 divided by 45 = 5.333... then taking that and multiplying it by 60 because thats how many min. are in an hour and it = 320
Answer:
15°, 75°
Step-by-step explanation:
The range of a projectile on level ground is:
R = v₀² sin(2θ) / g
For a range of R/2 at the same initial velocity:
R/2 = v₀² sin(2A) / g
Dividing the second equation by the first:
(R/2) / R = sin(2A) / sin(2θ)
1/2 = sin(2A) / sin(2θ)
sin(2A) = 1/2 sin(2θ)
The maximum range is when θ = 45°.
sin(2A) = 1/2 sin(90°)
sin(2A) = 1/2
2A = 30°, 150°
A = 15°, 75°
Answer:
62
Because u do 180-90-28=<u>62</u>
Answer:
the answer is 8 oz
Step-by-step explanation:
well it says for the first ounce is $0.49 so $0.49 is your first number, then you're trying to figure out how many $.21
2.then to make this easier you subtract $0.49 from $1.96 and that's is $1.47
3.then all you need to do is divide $1.47 By .21 cents anand you should get 7 .
4.but don't forget the $0.49 for the first ounce ,then 1 ounce add it to the 7 and It will equal 8 oz in total