Answer:
y=2x-1
Step-by-step explanation:
straight line equation
y=mx + c
find gradient(m) first,use formula;
m=3-7/2-4
m= -4/-2
m=2
use one the coordinates
(2,3)
3=2(2)+c
3=4+c
c=3-4
c = -1
y = 2x - 1
Answer:
A) x = 11 tan 49°
B) 12.7 inches
C) 14.7 inches
Step-by-step explanation:
(refer to attached for reference)
Let the length of the vertical side of the triangular sail be x
recall that for right angle triangle, the following trigonometric relation applies:
tan θ = length of opposite side / length of adjacent side
in our case,
θ = 49°
length of adjacent side = 11 inches
length of opposite side = length of vertical edge of sail = x (which we defined above)
hence we can assemble our formula
tan 49° = x / 11 (rearranging)
x = 11 tan 49° (Answer for A)
Using a calculator to solve this gives
x = 12.65 inches
x = 12.7 inches (to nearest tenth) (Answer for B)
The height of the mast is merely the height of the sail plus the 2" length of mast extending below the sail.
Mast height = 12.7" + 2" = 14.7" (Answer for C)
Multiply both sides of the equation by 12
The cl of water when it is filled to 70% of its height is 87.5 cl.
<h3> Description of a cuboid</h3>
A cuboid is a three dimensional object. The volume of a cuboid is determined using this formula: width x length x height
Width and length = √25 = 5cm
Height = 10 x 5 = 50cm
<h3>Volume of the cuboid </h3>
Volume = 50 x 25 = 1250 cm³
Volume when its filled to 70% of its height = 70% x 1250 = 875 cm³
<h3>
Conversion of cm to cl</h3>
1cm = 0.1 cl
875 x 0.1 = 87.5 cl
To learn more about cuboids, please check: brainly.com/question/9740924
Answer:
m = -2
Step-by-step explanation:
Slope Formula:
Simply plug in your coordinates:
m = (-2 - 2)/(6 - 4)
m = -4/2
m = -2