Answer:
91
Step-by-step explanation:
this is correct answer
The solution to the given system of equations is (-2,)
Therefore the values of x and y are x=-2 and
Given equations can be written as
Solving equation(2) we get
x=-2
Substitute x=-2 in equation (1) we get
3.75
3/4 times 5 =3 3/4
the perimeter is 50 inches squared
if the length is 4 times that means the sides are 20 and 5
see explanation
Expand both factors and collect like term
Using Pascal' triangle with n = 6 to obtain the coefficients
1 6 15 20 15 6 1
Decreasing powers of 1 from to
Increasing powers of 3x from to
= 1. + 6. + 15. + 20. + 15.1² + 6. + 1.
= 1 + 18x + 135x² + 540x³ + 1215 + 1458 + 729
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= 1 - 18x + 135x² - 540x³ + 1215 - 1458 + 729
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Collecting like terms from both expressions
+
= 2 + 270x² + 2430 + 1458
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(2)
Using Pascal's triangle with n = 5
1 5 10 10 5 1
Increasing powers of 2x from to
= 1. + 5. + 10. + 10. + 5.+ 1.
= 1 + 10x + 40x² + 80x³ + 80 + 32