Answer: 28
Step-by-step explanation: Break down the structure into 3, you have 3 shapes.
1. Square 4×4=16
2.2.Rectangle 4×2=8
3.Triangle = 1/2b×h=1/2×2×4=4
Total 16+8+4=28
Check picture
After 10 minutes, he's 40 miles away. After 22 minute, he's 34 miles away. Therefore, in those 12 minutes between, he covered 6 miles. We can make a ratio out of this: 6/12 = 0.5, so he is walking at a rate of 0.5 mi/min (miles per minute). Finally, we can set x/90 equal to 0.5/1 because he is walking at the same rate the entire time. Cross multiply to solve for x. Finally, you get that he had to travel 45 miles in 90 minutes, so his home is 45 miles away from his grandmother's.
It’s 60 because both lines are parallel
Answer:
227 is answer
Step-by-step explanation:
465
- 238
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then subtract
carry one from the 6
15-8 which is seven and then u better know how to do the rest
Answer:
98.99%
Step-by-step explanation:
The combined reliability of both components must be 98%. Given that both components must be functional and have the same reliability 'r', the minimum value of 'r' that meets the system requirements is given by:
The level of reliability required for each component is 98.99%.