I got you !
Step-by-step explanation:
45 bulbs planted in first year.
65 bulbs the next year.
increase = 20 bulbs
Number of increase of planted tulip bulb is N = 65 - 45 = 20
( 20/45) x 100% = 44.4 % to the nearest tenths
Answer:
y=-2
Step-by-step explanation:
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You will subtract these top 2
![- 7 {a}^{2} + 3a - 9 - 7 {a}^{2} + 3a - 9](https://tex.z-dn.net/?f=%20-%207%20%7Ba%7D%5E%7B2%7D%20%20%2B%203a%20-%209%20-%207%20%7Ba%7D%5E%7B2%7D%20%20%2B%203a%20-%209)
![5 {a}^{2} - 6a - 45 {a}^{2} - 6a - 4](https://tex.z-dn.net/?f=5%20%7Ba%7D%5E%7B2%7D%20%20-%206a%20-%2045%20%7Ba%7D%5E%7B2%7D%20%20-%206a%20-%204)
and this bottom one is your ANSWER
Answer:
part 1) ![SA=1,146\ cm^2](https://tex.z-dn.net/?f=SA%3D1%2C146%5C%20cm%5E2)
part 2) ![SA=4,120\ mm^2](https://tex.z-dn.net/?f=SA%3D4%2C120%5C%20mm%5E2)
Step-by-step explanation:
part 1) we know that
The surface area of the figure is equal to the area of all the faces of the figure
so
![SA=2[(12(9)+(5)(18-9)]+2[(12)(14)]+2[(14)(18)]](https://tex.z-dn.net/?f=SA%3D2%5B%2812%289%29%2B%285%29%2818-9%29%5D%2B2%5B%2812%29%2814%29%5D%2B2%5B%2814%29%2818%29%5D)
![SA=306+336+504](https://tex.z-dn.net/?f=SA%3D306%2B336%2B504)
![SA=1,146\ cm^2](https://tex.z-dn.net/?f=SA%3D1%2C146%5C%20cm%5E2)
part 2) we know that
The surface area of the figure is equal to the area of all the faces of the figure
so
![SA=2[(50)(30)-(50-24)(15)]+2[(10)(30)]+2[(50)(10)]+2[(10)(15)]](https://tex.z-dn.net/?f=SA%3D2%5B%2850%29%2830%29-%2850-24%29%2815%29%5D%2B2%5B%2810%29%2830%29%5D%2B2%5B%2850%29%2810%29%5D%2B2%5B%2810%29%2815%29%5D)
![SA=2,220+600+1,000+300](https://tex.z-dn.net/?f=SA%3D2%2C220%2B600%2B1%2C000%2B300)
![SA=4,120\ mm^2](https://tex.z-dn.net/?f=SA%3D4%2C120%5C%20mm%5E2)
Answer:
<em>conclusion : Life expectancy of women > Life expectancy of men </em>
Step-by-step explanation:
A) Mean life expectancy of women
from the attached table
mean life expectancy of women = ∑fx / ∑f
∑fx = 1523
∑f = 20
mean = 1523 / 20 = 76.15
The line graph shows a negatively skewed distribution
B) Mean life expectancy of Men
from the attached table
mean life expectancy of Men = ∑fx / ∑f
∑fx = 1432
∑f = 20
mean = 1432 / 20 = 71.6
<em>conclusion : Life expectancy of women > Life expectancy of men </em>