Answer:
The answer is 16%
Step-by-step explanation:
use the percent error formula.

in this problem,
e= 75
t=90
substitute and solve.

16%
we are dealing with percents so rounding to nearest whole number will suffice.
hope this helps!
Answer:
In group A, they have at least one 90 degree angle. In Group B, they do not have any 90 degree angles.
The correct option is (B): (3x+2)(3x+1)
Explanation:
Add all the boxes:
9x^2 (boxes)
9x (boxes)
The constants = 2
So it becomes:
9x^2 + 9x + 2
9x^2 + 6x + 3x + 2
3x(3x+2) + 1(3x+2)
(3x+2)(3x+1)
Answer:
ok the answer should be A.
Step-by-step explanation:
you transform the coordinates from (x,y) to (-y,x)
this means to flip the coordinates like bring y up front and change its sign and take x to the initial y position.
for example if (-1,9) when you do the transformation you get (-9,-1). you take initial -1 to the right and bring 9 to left and change its sign.
when you are done you can see that the x axis coordinates are the same but the y axis coordinates are the direct opposite. this means that after the transformation the triangle would look like the mirror image of the original triangle.