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tester [92]
3 years ago
8

Find the value of the expression given below. 2/3-1/7

Mathematics
1 answer:
vivado [14]3 years ago
6 0

Answer:

the answer is 11/21 or 0.523809524

hope this helped

Step-by-step explanation:

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The temperature fell 12°F from 46°Fto 34°F in 10 hours. how much would the temperature fall over 15 hours if the pattern continu
Stolb23 [73]
18 degrees F because 
it dropped 12 degrees=10 hours
                   x degrees=15 hours
x is what you want to find out which is how many degrees it would drop in 15 hours.
12x15 then divided by 10 is 18.
5 0
3 years ago
using a regression calculator, what is a good prediction for the height of the tree when it is 100 years old?
mylen [45]

Correct Question:

Tim is investigating the relationship between the number of years since a tree was planted and the height of the tree in feet. His data are shown in the table. Years Since Tree was Planted vs. Height of Tree

Years since the tree was planted, x

Height of tree in feet, y

2, 17, 3, 25, 5, 42, 6, 47, 7, 54, 9, 69

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Answer/explanation:

There is no good prediction for the height of the tree when it is 100 years old. If you analyze careful in details the regression calculator you realize that it probably will not valid that far in to the future say 100 years.

6 0
3 years ago
IM AM SO CONFUSED
Semenov [28]

Hello,

Answer (1/2,-1/4)

8x^2-2x-1=0\\\\8x^2-4x+2x-1=0\\\\4x(2x-1)+2x-1=0\\\\(2x-1)(4x+1)=0\\\\sol=\{\dfrac{1}{2} ,-\dfrac{1}{4} \}\\

6 0
3 years ago
Determine whether the equation y-y=y is sometimes,always, or never true?
beks73 [17]
The answer is it is yes, it is sometimes true, y can =0
6 0
3 years ago
The volume of a triangular prism is increased by a factor of 8.
Allushta [10]

Answer:

4

Step-by-step explanation:

3 0
3 years ago
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