3 years ago

PLEASE HELP!!!!!!!!!!!!!!

Mathematics

1 answer:

MaRussiya [10]3 years ago

6 0

The answer is the top answer

You might be interested in

This ones tricky can yall do it?

Ray Of Light [21]

Answer:

City A, City C

Step-by-step explanation:

They are all below -3 degrees Celsius

4 0

3 years ago

Read 2 more answers

Find m2ABC.<br> C/ 98°<br> 5x + 2<br> 6x + 8<br> A<br> B

Feliz [49]

Answer:

Step-by-step explanation:

7 0

2 years ago

If you drive 130 miles and it takes you Two hours and six minutes and then you drive back on the same route but it takes you two

Vilka [71]

You can gain it by taking an hr and thirty min trip and on the way back takes hr and forty five min. That is how you gain your precious time back!!!✍️☃️⚽️

4 0

3 years ago

Solve for (2/5)^8x=25/4

Levart [38]

Answer:

X=-1/4

Step-by-step explanation:

5 0

2 years ago

An open box is to be constructed so that the length of the base is 3 times larger than the width of the base. If the cost to con

natta225 [31]

Answer:

Step-by-step explanation:

Let assume that the volume = 88 cubic feet

Then:

$L = 3w --- (1)volume = l \times w \times h \\ \\ 88 = (3w) \times w \times h \\ \\ 3w^2 h= 88 \\ \\ h = \dfrac{88}{3w^2}--- (2) \\ \\$

The construction cost now is:

$C = 4(l \times w) + 2 ( w \times h) + 2(l \times h) \\ \\ C = 4(3w^2) + 2(w \times \dfrac{88}{3w^2}) + 2(3w \times \dfrac{88}{3w^2}) \\\\ C = 12w^2 + \dfrac{176}{3w} + \dfrac{176}{w}$

Now, to determine the minimum cost:

$\dfrac{dC}{dw}= 0 \\ \\ \implies 24 w - \dfrac{176}{3w^2}- \dfrac{176}{w^2}=0 \\ \\ 24 w ^3 = \dfrac{176}{w^2}(\dfrac{1}{3}+1) \\ \\ 24 w ^3 = \dfrac{176(4)}{3} \\ \\ w^3 = \dfrac{88}{3(3)}$

$w = \dfrac{88}{3(3)}^{1/3} \ feet$

Now;

$length = 3 ( \dfrac{88}{3(3)})^{1/3} \ feet$

$height = ( 88})^{1/3} (3)^{1/3} \ feet$

6 0

3 years ago