The estimated portion of light bulbs that last more than 500 hours will be
x=∑xn=224/430=0.521=52.1%
Answer:
4
Step-by-step explanation:
If you increase the scale factor by 4, the sides become:
L= 2×4 = 8
W= 3×4 = 12
Now to find the new area:
<u>8 × 12</u> = 96cm^2
<u>So, a scale factor of </u><u>4</u> would give the rectangle a scale factor of <u>96</u>.
<u>Hope this helps and have a nice day!</u>
Answer: -2/3
3-(-1) over
-2-4
This equals 4/-6 which reduces to -2/3
Answer:
20 miles per hour
Step-by-step explanation:
traveling against the wind was 160mph (400/2.5)
traveling with the wind was 200mph (400/2)
going against the wind is going in the negative direction of the wind speed, and going with the wind is going in a positive direction of the wind speed, therefore the wind speed is |direction1-direction2|/2, which would be |200-160|/2 = |40|/2 = 20mph
(180mph is neutral speed with no wind, with wind affecting this neutral speed ±20mph)
