Answer:
70.5
Step-by-step explanation:
Class interval frequency
50-59 14
60-69 6
70-79 7
80-89 8
90-99 5
Mean for frequency distribution=sumfx/sumf
where f is frequency and x is a midpoint.
midpoints for above five classes can be calculated as
(50+59)/2, (60+69)/2, (70+79)/2, (80+89)/2 and (90+99)/2.
The calculated midpoints(x) are
54.5,64.5,74.5,84.5 and 94.5.
Mean=xbar=14*54.5+6*64.5+7*74.5+8*84.5+5*94.5/14+6+7+8+5
Mean=xbar=763+387+521.5+676+472/40=2819.5/40=70.4875
Mean=xbar=70.5
Answer: If a system has infinitely many solutions, then the lines overlap at every point. In other words, they're the same exact line so this means that any point on the line is a solution to the system.
Step-by-step explanation: Hope this helps
<h3>Advantages:</h3>
Shippers can handle rectangular prism-shaped packages of size and weight within their specifications. Many material-handling systems are designed to work well with rectangular prism shapes. (Not so much for packages too small, too large, too heavy, or of odd aspect ratio or weight distribution.)
<h3>Disadvantages:</h3>
Depending on the package contents, much space may be wasted, or much packing material may be required. Some rectangular prism shapes (and some package materials or content) don't stack well, so may require more space for shipping or storage.
2x+3. that is the answer because 2 and a number is 2x and 3 more than that would be adding 3
Answer:
see explanation!
Step-by-step explanation:
Line N
- A set of points where the coordinates of each point have a sum of 2
Line M
- A set of points where the y-coordinates of each point is 10 less than its x-coordinate
Any coordinate on N has a sum of 2.
Any coordinate on M has a y that is 10 less than the x.
