Answer:
4x+3
How: -2x - (-6x) = 4
3 cannot be added there you go
Answer:
All squares are rectangles.
Step-by-step explanation:
A square is a rectange with equal-length sides.
A rectangle is a parallelogram with right-angle corners.
A parallelogram is a quadrilateral with opposite sides parallel.
A quadrilateral is any 4-sided plane figure, not necessarily convex. Sides are not necessarily parallel, nor are angles necessarily 90°.
English translation:
If the quality control manager wants to estimate the average life of lamps with 20 hours, with a confidence level of 95% and an error of 10% is assumed. What is the sample size?
Answer:
8 l
Step-by-step explanation:
1 l = 1000 mm
8000 mm = 8000/1000
8000 mm = 8 l
The coefficients in this equation are 4,5 and 3 and idk the terms just look up tthe definition for that one and you will get the question