1+2=3.
30/3=10
10x1=10
10x2=20
So the answer would be £10:£20
And to check if it’s right £10 + £20= £30
Slope-intercept form: y = mx + b
(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)
For lines to be parallel, they need to have the same slope.
y - 3x = 2 Add 3x on both sides to change the equation to slope-intercept form
y - 3x + 3x = 2 + 3x
y = 3x + 2 The slope is 3, so the parallel line's slope is also 3.
Now that you know the slope, substitute/plug it into the equation
y = mx + b
y = 3x + b To find "b", plug in the point (6, 1) into the equation, then isolate/get the variable "b" by itself
1 = 3(6) + b
1 = 18 + b Subtract 18 on both sides to get "b" by itself
1 - 18 = 18 - 18 + b
-17 = b
y = 3x - 17 Your answer is the 1st option
Answer:
A
Step-by-step explanation:
5/(1-√3)=5*(1+√3)/(1-√3)(1+√3)= (5+5√3)/(1-3)= -(5+5√3)/2
Choice A is correct one
Answer:
752.8 miles
Step-by-step explanation:
First we need to calculate the time it takes for them to meet
we add the speeds multiplied by the time (substracting the 4 hours difference for the second train) and it would equal the total distance
80 mi/h× T + 68 mi/h× ( T-4h) = 1121 mi
80 mi/h × T + 68 mi/h× T - 68 mi/h × 4 mi = 1121 mi
148 mi/h T = 1121 mi + 272 mi
T = 1393 mi / 148 mi / h = 9.41 h
then we just multiply the speed of the first train times the number of hours and it gives us the distance it traveled
9.41 h * 80 mi / h = 752.8 mi
The area is 33.3in squared