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Yuki888 [10]
3 years ago
14

Alyssa is 10 and her grandma is 71. Alyssa created a family tree in 2001, in what year was grandma born

Mathematics
1 answer:
Degger [83]3 years ago
6 0

Ans1wer:

1930

Step-by-step explanation:

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Waterters
Leno4ka [110]
Wait can you rewrite this better?
8 0
3 years ago
Consider the graph of quadrilateral WXYZ. What is the most specific name for quadrilateral WXYZ?
xz_007 [3.2K]

Answer:

The quadrilateral shown on the graph is most likely to be a square.

Choice A

Step-by-step explanation:

All the sides appear to be equal which is a characteristic of squares.

Secondly, the sides appear to be intersecting at right angles

Finally, the sides appear to be parallel to each other.

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3 years ago
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Find the max and min values of f(x,y,z)=x+y-z on the sphere x^2+y^2+z^2=81
Anton [14]
Using Lagrange multipliers, we have the Lagrangian

L(x,y,z,\lambda)=x+y-z+\lambda(x^2+y^2+z^2-81)

with partial derivatives (set equal to 0)

L_x=1+2\lambda x=0\implies x=-\dfrac1{2\lambda}
L_y=1+2\lambda y=0\implies y=-\dfrac1{2\lambda}
L_z=-1+2\lambda z=0\implies z=\dfrac1{2\lambda}
L_\lambda=x^2+y^2+z^2-81=0\implies x^2+y^2+z^2=81

Substituting the first three equations into the fourth allows us to solve for \lambda:

x^2+y^2+z^2=\dfrac1{4\lambda^2}+\dfrac1{4\lambda^2}+\dfrac1{4\lambda^2}=81\implies\lambda=\pm\dfrac1{6\sqrt3}

For each possible value of \lambda, we get two corresponding critical points at (\mp3\sqrt3,\mp3\sqrt3,\pm3\sqrt3).

At these points, respectively, we get a maximum value of f(3\sqrt3,3\sqrt3,-3\sqrt3)=9\sqrt3 and a minimum value of f(-3\sqrt3,-3\sqrt3,3\sqrt3)=-9\sqrt3.
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3 years ago
An airplane makes an angle of depression of 23.2° when it descends. It is calculated that the
dem82 [27]

Answer:

im bord so dont delete this

Step-by-step explanation:

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3 years ago
What is the value of X?
11111nata11111 [884]

Answer:

56

Step-by-step explanation:

You add 91 and 33 and you get 124. Subtract 180 and 124 to get 56.

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3 years ago
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