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3 years ago

What is the sign of -4 (3/-4)?

Mathematics

1 answer:

stepan [7]3 years ago

4 0

The sign will be Positive because there are two negatives

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Can someone help me with this? 20 points

lawyer [7]

Answer:

Step-by-step explanation:

Triangle ABC is a 45-45-90 right triangle. That means that segment BC also measures 10.

The big triangle as a whole is a 30-60-90. The side length across from the 30 degree angle is 10, so the whole length of BD is 10√3. However, since we already have the length of BC as 10, then segment CD measures

10√3 -10 which is 7.32

4 0

2 years ago

3- y3 is the simplified form of (x+y) (22 - xy + y )<br> True<br> Or <br> False

sasho [114]

Answer:true

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Use Lagrange multipliers to find the maximum and minimum values of

marusya05 [52]

The Lagrangian is

$L(x,y,\lambda)=x+8y+\lambda(x^2+y^2-4)$

It has critical points where the first order derivatives vanish:

$L_x=1+2\lambda x=0\implies\lambda=-\dfrac1{2x}$

$L_y=8+2\lambda y=0\implies\lambda=-\dfrac4y$

$L_\lambda=x^2+y^2-4=0$

From the first two equations we get

$-\dfrac1{2x}=-\dfrac4y\implies y=8x$

Then

$x^2+y^2=65x^2=4\implies x=\pm\dfrac2{\sqrt{65}}\implies y=\pm\dfrac{16}{\sqrt{65}}$

At these critical points, we have

$f\left(\dfrac2{\sqrt{65}},\dfrac{16}{\sqrt{65}}\right)=2\sqrt{65}\approx16.125$ (maximum)

$f\left(-\dfrac2{\sqrt{65}},-\dfrac{16}{\sqrt{65}}\right)=-2\sqrt{65}\approx-16.125$ (minimum)

5 0

3 years ago

Select ALL the expressions that are equal to 3(n+4) *

telo118 [61]

Answer:

B and F

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

I WILL GIVE BRAINLIEST

PolarNik [594]

Answer: It should be 1/2, 50% or 0.5

Step-by-step explanation: There are only two different things you can get when flipping the coin, so it would be 1/2

4 0

3 years ago