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Ivahew [28]
3 years ago
12

Evaluate 4 + (-2) - (-3) – 6.

Mathematics
1 answer:
seraphim [82]3 years ago
7 0

Answer:

4 t -2= 6 -3=3-6=3  6 x 3= 18 x 3=54

Step-by-step explanation:

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Yesterday, sam had 146 baseball cards. today, he gave d away. Using d, write an expression for the number of cards same has left
Korvikt [17]
146-d=x is the answer
4 0
3 years ago
0.8 is 20% of what number?
Rom4ik [11]

0.8 is 20% of 4. This is because 20% of something occurs when something is divided by 5, since it is 1/5 of 100. You multiply 0.8*5, and you get 4.

6 0
3 years ago
A study was done that looked at how much red meat people consumed and how long they lived. The correlation r was found to be 0.9
AVprozaik [17]

Answer:

False

Step-by-step explanation:

Since the correlation r was found to be 0.98 (a value closer to 1).  

Let X =how much red meat people consumed

let Y = how long they lived.

where the x-values are the values of the deviations of co-ordinates X from Xₙ, their mean value and the y-values are the values of the deviations of co-ordinates Y from Yₙ, their mean value.

That is, x=(X−Xₙ) and y=(Y−Yₙ).

The results of this determination give values of r lying between +1 and −1, where;

+1 indicates perfect direct  correlation,

−1 indicates perfect inverse correlation and

0 indicates that no correlation exists.

Between these values, the smaller the value of r, the less is the amount of correlation which exists.

Generally, values of r in the ranges 0.7 to 1 and −0.7 to −1 show that a fair amount of correlation exists.

therefore, it can be seen that there is a perfect relationship between the quantity eaten and how long the person live

But, the correlation does not consider those that does not consume meat, and it is very hard to determined the answer to the question.

the answer is false because there are other reasons that determined longevity of life apart from meat consumption.

3 0
3 years ago
Hiro painted his room at a rate of 8 square meters per hour. After 3 hours of painting, he had 28 square meters left to paint. L
coldgirl [10]

Answer:

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5 0
3 years ago
Wildlife resort has eight elephant cabs born during the summer and now has 31 total how many elephants were ending was there bef
Kipish [7]

The answer would be 23. 31-8=23

4 0
3 years ago
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