Answer:
Third answer (she is incorrect because she should have squared each leg length and then found the sum.)
Step-by-step explanation:
The pythagorean theorem states that a²+b²=c². This is not equivalent to (a+b)²=c² (due to FOIL expansion, this expands to a²+2ab+b²=c²).
This matches with the third answer, as she has to do a² and b≥ separately.
**This question involves expanding perfect squares, which you may wish to revise. I'm always happy to help!
Fraction of shampoo left = 
Solution:
Given fraction of full shampoo
.
Fraction of shampoo Margaret used 
Fraction of shampoo left = Full shampoo – fraction of shampoo used

To make the denominators same do cross multiplication.




Hence
of the shampoo bottle is left.
Answer:
dude the first one
Step-by-step explanation:
25:10=5;2
you have to add 2×3 =6 ft to both length and width.
33+6 =39
36 +6=45
the perimeter is
p = 2×39 + 2×45
p = 78 + 90
p = 168
Jose needs 168 ft of fencing
hope it helps.
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