ASAP HELP MEH!!! WILL MARK BRAINLIEST!!
2 answers:
Answer:
The weight of fresh grapes should be 700 grams.
Step-by-step explanation:
Let x be the weight of fresh grapes.
It is given that fresh grapes lose 80% of their weight while drying.
Weight of dried grapes is
It is given that the weight of dried grapes is 140 grams.
Divide both sides by 0.2.
Therefore, the weight of fresh grapes should be 700 grams.
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Answer:
(y - i)(y + i
)
Step-by-step explanation:
Factor as a difference of squares, that is
y² + 7
= y² - (i )²
= (y - i)(y + i
)
Answer:
could not be the same
Step-by-step explanation:
Given that approximately US drivers are agewise as follows:
<25 13.2
25-45 37.7%
>45 49.1%
Observations are made for a sample of 200 fatal accidents.
Let us create hypotheses as
(Two tailed chi square test at 5% significance level)
Age <25 25-45 >45
Expected 13.2 37.7 49.1 100
Observed 42 80 78 200
Expected no 26.4 75.4 98.2 200
Chi square 9.218181818 0.280636605 4.155193483 13.65401191
df = 2
p value = 0.001084
Since p <0.05 we reject null hypothesis
At the 0.05 level, the age distribution of drivers involved in fatal accidents within the state could not be the same as the age distribution of all US drivers as there seems to be significant difference.