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butalik [34]
4 years ago
10

Please help me I will give you Brainlist

Mathematics
1 answer:
jolli1 [7]4 years ago
4 0
If you start at -40 you need 40 to get to 0 then add 40 to get there so B probly or C D
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Hey, this is the last thing I'm asking help with today.thank you
Inga [223]

Answer:

A

Step-by-step explanation:

the middle angle has to be equal to make the entire angle equal

7 0
3 years ago
THIS IS ONE STEP EQUATIONS
loris [4]

Answer:

$48.56

Step-by-step explanation:

look, 2 friends each get $24.28. multiply by two for two friends: $48.56

5 0
3 years ago
M letter B<br> ABCD is a parallelogram
Mama L [17]

Answer:

a) w = 5

b) x = 5 or 6

Step-by-step explanation:

A)  The propety you want to use is that opposite sides of a parallelogram are equal.  In this case AB = DC and AD = BC

It then givs you the measure for AB and DC, so you know they are equal

w^2 - 5 = 4w

w^2 - 4w - 5 = 0

I am going to complete the square

(w - 2)^2 - 9 = 0

(w - 2)^2 = 9

w - 2 = +/- 3

w = +/-3 + 2

w = -1 or 5

Since length can't be negative we know w = 5.  It's not because w is negative mind you, but the side 4w is negative and w^2 - 5 would be negative.  if you could make w a negative number and still have 4w and w^2 - 5 be positive, that negative w would work

B)  here you want to use opposite angles are equal in a parallelogram.  So B = D and A = C

It gives us B and D so set them equal.

25 = x^2 - 11x + 55

x^2 - 11x + 30 = 0

(x - 11/2)^2 - 1/4 = 0

(x - 11/2)^2 = 1/4

x - 11/2 = +/-1/2

x = +/- 1/2 + 11/2

x = 5 or 6

Here both answers work.  

3 0
3 years ago
Find the extreme values of the function f(x, y) = 4x2 + 6y2 on the circle x2 + y2 = 1.
julia-pushkina [17]

Answer with Step-by-step explanation:

We are given that

f(x,y)=4x^2+6y^2

Let g(x,y)=x^2+y^2=1

We have to find the extreme values  of the given function

\nabla f(x,y)

\nabla g(x,y)=

Using Lagrange multipliers

\nabla f(x,y)=\lambda \nabla g(x,y)

f_x=\lambda g_x

8x=\lambda 2x

Possible value x=0 or \lambda=4

If x=0 then substitute the value in g(x,y)

Then, we get y=\pm 1

f_y=\lambda g_y

12y=\lambda 2y

If \lambda=4 and substitute in the equation

Then , we  get possible value of y=0

When y=0 substitute in g(x,y) then we get

x=\pm 1

Hence, function has possible  extreme values at points (0,1),(0,-1), (1,0) and (-1,0).

f(0,1)=6

f(0,-1)=6

f(1,0)=4

f(-1,0)=4

Therefore, the maximum value of f  on the circlex^2+y^2=1  is f(0,\pm1)=6 and minimum value of f(\pm1,0)=4

7 0
3 years ago
How can x + 3 = -2x + 5 be set up as a system of equations? (1 point)
Elena-2011 [213]

9514 1404 393

Answer:

4) y = x + 3

   y = -2x + 5

Step-by-step explanation:

Set each side of the equal sign equal to y.

<u>Left side</u>:

  y = x + 3

<u>Right side</u>:

  y = -2x +5

5 0
3 years ago
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