Cot(-x) = 1 / tan(-x)
Tan(-x) * 1 / tan(-x) = 1
For a triangle to be right angled the largest side squared must equal the sum of the squares on the other 2 sides ( Pythagoras theorem)
1. 101^2 = 99^2 + 20^2 so its is right angled
2. 28^2 is not equal to 26^2 + 12^2 - not right angled
3. 17^2 not euql to 14^2 + 6^2 - not
Answer:
Step-by-step explanation: 3004 x 10⁻⁶
These numbers were written in standard forms or in scientific notation or in compressed manner
4 x 10⁻⁶ = 0.000004
3 x 10⁻₃ = 0.003
Adding the two together gives
0.000004 + 0.003 = 0.003004
= 3004 x 10⁻⁶
Answer:
1328
Step-by-step explanation:
Yosef should have multiplied the x-values by 80 to get the y-values.
<h3>Functions and tables</h3>
Tables are told used to arrange ungrouped data.
From the given table, we can find the equation by using the coordinate points (1, 80) and (1, 160)
<h3>Find the equation of the line</h3>
The standard equation of a line is y = mx + b
m is the slope
b is the y-intercept
Slop = 160-80/2-1
Slope = 80
For the y-intercept
160 = 80(2) + b
b = 0
The required equation is y = 80x
This means that Yosef should have multiplied the x-values by 80 to get the y-values.
Learn more on equation of a line here: brainly.com/question/13763238
