Answer:
73.2sq.in
Step-by-step explanation:
Area of the triangle = 1/2 * base * height
Get the height using the pythagras theorem
h^2 = 13^2 - (13/2)^2
h^2 = 169 - (6.5)^2
h^2 = 169 - 42.25
h = 11.26in
Area of the triangle = 1/2 * 13 * 11.26
Area of the triangle = 6.5 * 11.26
Area of the triangle = 73.2sq.in
Hence the area of the triangle to nearest tenth is 73.2sq.in
Answer:
3.6
Step-by-step explanation:
We must first clarify how a number is rounded.
To round a number to unity we have to look at the first number after the comma.
If this number is less than 5 (1, 2, 3, 4) we should not do anything, but if that number is 5 or greater (5, 6, 7, 8, 9) we must add a unit to the number.
That is to say:
<5 do nothing
=> 5 round to the next number (+1)
So in the case of 3.55 it would be.
3.55 = 3.6
Step-by-step explanation:
Pick two points on the line and determine their coordinates
Select one to be (x1, y1) and the other to be (x2, y2)
Finally use the slope intersect equation to calculate the slope:
<em>Formula-</em><em> </em>
<em>y = mx + b </em>
<em></em>
Hope this helps, let me know if you need more information, I'll be glad to help! :)
The best approach would be to subtract 6 from both sides of the equation for the first equation
5x = y + 6
5x - 6 = y
Therefore the y is isolated so you can substitute that into the second equation
2x - 3(5x -6) = 4
~~hope this helps~~
Answer:
m = - 1
Step-by-step explanation:
Given
= - 6
Multiply both sides by 2 to clear the fraction
15m + 3 = - 12 ( subtract 3 from both sides )
15m = - 15 ( divide both sides by 15 )
m = - 1