A science teacher fills a spherical bubble with hydrogen gas. The bubble has
Hi
On a cos(x) graph, the minimum y-value is always -1. Since you are adding 5 to -1, the minimum values is 4.
Here is my notes from 7th grade math class!
8/21 x 14/5 = 1.06666667
i hope this helps!!
if u need the decimal in a fraction, just lmk
Part A
The 4 angles of a quadrilateral add to 360. To see why, draw a line from A to C. The quadrilateral is divided into 2 triangles. All triangles have interior angles that add to 180. Since there are 2 such triangles, the total is 2*180 = 360. Write a summation for the 4 angles.
2x + 3x + x + 90 = 360 Combine like terms on the left
6x + 90 = 360 Subtract 90 from both sides.
6x + 90 - 90 = 360 - 90 Collect like terms
6x = 270 Divide both sides by 6
6x/6 = 270/6 Do the division
x = 45
Part B
Since x = 45 then2x = 90
Since <A and <B = 90 And since they are equal interior angles and
both are 90 degrees,the lines are parallel.
