How high is a tree that casts a 28-ft shadow at the same time that a 6-ft fence post casts a 8-ft shadow?
1 answer:
Answer: 21 feet.
Step-by-step explanation:
1. You know that the tree casts a 28 feet shadow and that a 6 feet fence post casts a 8 feet shadow, then, you can write the following proportion to solve this problem:
2. When you solve for the height ot tree (x), you obtain the following result:
3. Therefore, the height of the tree is 21 feet.
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Answer:
-0.2,-2.2,-0.2, 0.8, 1.8
Step-by-step explanation:
Given :Five people were asked approximately how many hours of TV they watched per week.
Their responses were as follows. 6 4 6 7 8
To Find : Find the deviations from the mean for these five data values
Solution :
Mean =
Mean =
Mean =
The deviations from the mean for these five data values: 6-6.2,4-6.2,6-6.2,7-6.2,8-6.2=-0.2,-2.2,-0.2, 0.8, 1.8
Hence the deviations from the mean for these five data values is -0.2,-2.2,-0.2, 0.8, 1.8
You'll want to first simplify the expression 
.
To do that, first distribute the
:
From there, you may just combine like terms:
Answer:
D. 4t - 10
To do that, first distribute the
From there, you may just combine like terms:
Answer:
D. 4t - 10