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RSB [31]
2 years ago
5

CAN SOMEONE HELP ME EVALUATE THE EXPRESSION (4^2-4)+6/2

Mathematics
1 answer:
seropon [69]2 years ago
7 0

Answer:

2 × 4x^{n}- 1

Step-by-step explanation:

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Five candy bars cost $3.23. How much will 7 candy bars cost?
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Answer:  it will cost $4.85

Step-by-step explanation:

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Find the extreme values of f subject to both constraints. (if an answer does not exist, enter dne.) f(x, y, z) = x + 2y; x + y +
Mariana [72]
Using the method of Lagrange multipliers, we have the Lagrangian

L(x,y,z,\lambda_1,\lambda_2)=x+2y+\lambda_1(x+y+z-4)+\lambda_2(y^2+z^2-4)

with partial derivatives (set equal to 0)

L_x=1+\lambda_1=0\implies\lambda_1=-1
L_y=2+\lambda_1+2\lambda_2y=0\implies\lambda_2y=-\dfrac12
L_z=\lambda_1+2\lambda_2z=0\implies\lambda_2z=\dfrac12
L_{\lambda_1}=x+y+z-4=0
L_{\lambda_2}=y^2+z^2-4=0

From L_y and L_z, we find that \lambda_2y=-\lambda_2z\implies y=-z. Then substituting into L_{\lambda_2}, we find

y^2+z^2=4\implies2y^2=4\implies y=\pm\sqrt2\implies z=\mp\sqrt2

and substituting these into L_{\lambda_1}, we get

x+y+z=4\implies x=4

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5 0
3 years ago
HELPPPPPPPPPPPPPPPPPP MEEEEEEEE
solmaris [256]

Answer:D

Step-by-step explanation:

The equation is y=mx+b. Here the slope is 1/5 and b is 5

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Answer:

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bc^2=3^2 +5^2-2(3)(5)*cos30

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3 years ago
Write the expression as a product.<br> 25-(a + 7)^2
Nastasia [14]

25 -  ({a + 7})^{2}  =

(5 + (a + 7))(5 - (a + 7)) =

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Have a great day ♡

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