Step-by-step explanation:
l = length
w = width
l = w + 2
l×w = area = (w + 2)×w = w² + 2w
l×(w + 4) = area + 88
(w + 2)×(w + 4) = w² + 2w + 88
w² + 6w + 8 = w² + 2w + 88
6w + 8 = 2w + 88
4w = 80
w = 20 cm
l = w + 2 = 20 + 2 = 22 cm
the original length is 22 cm.
the original width is 20 cm.
the original area (22×20) is therefore 440 cm².
the new area (22×24) would be 528 cm².
You're looking for the percentage in decimal form in the equation. We'll call it x for right now. So whatever x is it will be multiplied to 3.20 and subtracted from 3.20 to equal 2.40. So, our equation will look like this
3.20-x(3.20)=2.40
subtract both sides of the equation by 3.20 to get
-x (3.20)=2.40-3.20
-x (3.20)=-.80
now divide both sides of the equation by -3.20 to single out x on the left side
x= -.80/-3.20
x=.25
to turn this back into a percentage, we move the decimal to the right 2 places
.25=25%
The p-value is used to decide whether to reject or fail to reject the null hypothesis
Step-by-step explanation:
The p-value is used to make a conclusion in significance testing.
Where the p-value is lower than the significance value adopted ∝, you reject the null hypothesis H₀. In such a case, p-vale<∝⇒reject H₀⇒accept Hₐ.
Where the p-value is greater than or equal to the significant level ∝, you fail to reject the null hypothesis H₀, to mean p-value≥∝⇒fail to reject H₀
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Null hypothesis :brainly.com/question/13017044
Keywords :reject, null hypothesis
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There are 15 sixteenths in 15/16.
