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3 years ago

Geometry and stufff Help cause I’m dumb :) What’s the value of the missing angle

Mathematics

1 answer:

Elena L [17]3 years ago

4 0

Answer:

Guys I am going to make a Zoom meeting and share my screen Kahoot join if you want :D

747-8518-2433

Meeting code

password 9f4R3R

NO waiting room

Step-by-step explanation:

You might be interested in

Solve for x: <img src="https://tex.z-dn.net/?f=22y%5C3x%3D8" id="TexFormula1" title="22y\3x=8" alt="22y\3x=8" align="absmiddle"

iVinArrow [24]

Answer:

x = 4/(11y)

Step-by-step explanation:

22yx = 8

Solve for x so divide each side by 22y

22xy/22y = 8/22y

x = 4/(11y)

8 0

3 years ago

Read 2 more answers

Item 1

Nady [450]

9514 1404 393

Answer:

∠1 = ∠3 = ∠5 = ∠7 = 81°

∠2 = ∠4 = ∠6 = 99°

Step-by-step explanation:

Vertical and corresponding angles are congruent. Angles 1 and 99° are supplementary, so ...

∠1 = 180° -99° = 81°

Then we have ...

∠1 = ∠3 = ∠5 = ∠7 = 81°

∠2 = ∠4 = ∠6 = 99°

3 0

3 years ago

Simplify the expression: -1/2 (-5/6 + 1/3)

Kazeer [188]

Answer:

Exact Form:

1/6

Decimal Form:

0.16 (6 repeating)

Step-by-step explanation:

3 0

3 years ago

53.02 in expanded notation

svet-max [94.6K]

<span>53.02 in expanded notation</span> would be 25*2 + 3 + 0.3

3 0

3 years ago

Read 2 more answers

Use Lagrange multipliers to find the maximum and minimum values of the function subject to the given constraint. (If an answer d

andrey2020 [161]

Answer:

The maximum value is 1/27 and the minimum value is 0.

Step-by-step explanation:

Note that the given function is equal to $(xyz)^2$ then it means that it is positive i.e $f(x,y,z)\geq 0$ .

Consider the function $F(x,y,z,\lambda)=x^2y^2z^2-\lambda (x^2+y^2+z^2-1)$

We want that the gradient of this function is equal to zero. That is (the calculations in between are omitted)

$\frac{\partial F}{\partial x} = 2x(y^2z^2 - \lambda)=0$

$\frac{\partial F}{\partial y} = 2y(x^2z^2 - \lambda)=0$

$\frac{\partial F}{\partial z} = 2z(x^2y^2 - \lambda)=0$

$\frac{\partial F}{\partial \lambda} = (x^2+y^2+z^2-1)=0$

Note that the last equation is our restriction. The restriction guarantees us that at least one of the variables is non-zero. We've got 3 options, either 1, 2 or none of them are zero.

If any of them is zero, we have that the value of the original function is 0. We just need to check that there exists a value for lambda.

Suppose that x is zero. Then, from the second and third equation we have that

$-2y\lambda = -2z\lambda$ . If lambda is not zero, then y =z. But, since $-2y\lambda=0$ and lambda is not zero, this implies that x=y=z=0 which is not possible. This proofs that if one of the variables is 0, then lambda is zero. So, having one or two variables equal to zero are feasible solutions for the problem.

Suppose that only x is zero, then we have the solution set $y^2+z^2=1$ .

If both x,y are zero, then we have the solution set $z^2=1$ . We can find the different solution sets by choosing the variables that are set to zero.

NOw, suppose that none of the variables are zero.

From the first and second equation we have that

$\lambda = y^2z^2 = x^2z^2$ which implies $x^2=y^2$

Also, from the first and third equation we have that

$\lambda = y^2z^2 = x^2y^2$ which implies $x^2=z^2$

So, in this case, replacing this in the restriction we have $3z^2=1$ , which gives as another solution set. On this set, we have $x^2=y^2=z^2=\frac{1}{3}$ . Over this solution set, we have that the value of our function is $\frac{1}{3^3}= \frac{1}{27}$

4 0

3 years ago