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3 years ago

Guys help me plsss :((((

Mathematics

2 answers:

Amiraneli [1.4K]3 years ago

7 0

Answer:

Step-by-step explanation:

levacccp [35]3 years ago

3 0

Answer:

Step-by-step explanation:

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Here are four number cards.

yaroslaw [1]

Answer:

a) 14

b) 514

Step-by-step explanation:

use number line for b

514 is 14 away from 500

485 is 15 away from 500

so 514 is closer to 500

3 0

3 years ago

Given x || y and mZ1 = 42° .<br> What is m26?<br> Enter your answer in the box.

ICE Princess25 [194]

Answer:

Step-by-step explanation:

since x is parallel to y m 26 remains constant

5 0

3 years ago

A scientist wants to predict the number of nitrates in the river. Which sample is better for making this prediction?

Ray Of Light [21]

Answer:

Sample B: A random sample of 5 gallons of water from five different locations in the river

Step-by-step explanation:

8 0

3 years ago

This extreme value problem has a solution with both a maximum value and a minimum value. Use Lagrange multipliers to find the ex

pashok25 [27]

Answer with Step-by-step explanation:

We are given that

$f(x,y,z)=10x+10y+3z$

$g(x,y,z)=5x^2+5y^2+3z^2=43$

We have to find the extreme values of the function.

$f_x(x,y,z)=10,f_y(x,y,z)=10,f_z(x,y,z)=3$

$g_x(x,y,z)=10x,g_y(x,y,z)=10y,g_z(x,y,z)=6z$

$\Delta f(x,y,z)=\lambda \Delta g(x,y,z)$

Therefore,

$10=\lambda 10x\implies x=\frac{1}{\lambda}$

$10=10y\lambda\implies y=\frac{1}{\lambda}$

$3=6z\lambda$

$z=\frac{1}{2\lambda}$

Substitute the values in g(x)

Then, we get

$\frac{5}{\lambda^2}+\frac{5}{\lambda^2}+\frac{3}{4\lambda^2}=43$

$\frac{20+20+3}{4\lambda^2}=43$

$\frac{43}{4\lambda^2}=43$

$\lambda^2=\frac{43}{4\times 43}$

$\lambda=\pm\frac{1}{2}$

When $\lambda=\frac{1}{2}$ then,

$x=2,y=2,z=1$

When $\lambda=-\frac{1}{2}$

Then, $x=-2,y=-2,z=-1$

$f(2,2,1)=10+10+3=23$

$f(-2,-2,-1)=-10-10-3=-23$

Hence, maximum value of f(x,y,z) is 23 at (2,2,1) and minimum value of f(x,y,z) is -23 at (-2,-2 ,-1).

8 0

4 years ago

This is 15 points plz help ( NO LINKS )

shepuryov [24]

Answer:

Try 6,400

Step-by-step explanation:

Find the volume of one congruent bookshelf then you'd be doing "4 x 10 x 8 x 10" (not another 8 bc they are talking about the length of the same side) you should get the answer 3,200 then multiply by 2 bc they're 2 bookshelves . You should get 6,400 I'm not 100% sure tho

4 0

3 years ago

Read 2 more answers