Let the width of the rectangle be x
then the length is x+2
we are given the area as 80 square meter
and we know the area of a rectangle is given by
area=L*W
area=(x+2)*x
but our area=80
80=(x+2)*x
x^2+2x=80
x^2+2x-80=0
we use the quadratic formula to solve this which gives us
x=8
therefore our width is 8
and our length is 10
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➷ Find the total of frequencies rolled over 10 (this would be 11 and 12)
15 + 17 = 32
Place this number over the total number of trials:
32/200
This can be simplified to 4/25
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Answer:
Kindly check explanation
Step-by-step explanation:
A common problem with most research designs is bias, which could be introduced win several ways one if which is the favored selection of certain variables rather than being randomized. In the scenario above, the sampling time frame introduces a bias into the design as the tune span of pesticide use does not allay with that of the exposure history of the respondent. Therefore an entire lifetime evaluation of one variable and just 20 years evaluation of the other introduces a sampling bias into the research design. Similarly, evaluation the type of pesticide usage over certain time period may need to be considered as the effect of very old pesticides may differ from those used very recently.
Answer:
Step-by-step explanation:
Answer:
(a) $26.37 (b) $17.58
Step-by-step explanation:
The original price of a beach chair = $43.95
Janelle bought the chair on sale at = 60% off
The discount price = 60% of 43.95
= 
= 0.60 × 43.95
= $26.37
(a) The amount of discount = $26.37
(b) The sale price = 43.95 - 26.37 = $17.58
The amount of discount was $26.37 and the final sale price was $17.58.
