2 years ago

I need help with this plz i have no idea what to do

Mathematics

1 answer:

zepelin [54]2 years ago

5 0

Answer:

When Item Price * (%) is < or > to $ Off

Step-by-step explanation:

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Using the distrubutive proberty an experstion equvalent to 45+72

Colt1911 [192]

solution:

$45+72\\=(9\times 5)+(9\times 8)\\=9(5+8)\\=117$

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3 years ago

Suppose we want to build a rectangular storage container with open top whose volume is $$12 cubic meters. Assume that the cost o

Snezhnost [94]

Answer:265.25

Step-by-step explanation:

Given

Volume of box $=12 m^3$

height is 3 times the width

let height, length and breadth be H, L & B

$H=3\times B$

$V=12=L\times B\times H$

4=B^2\times L[/tex]

$L=\frac{4}{B^2}$

Cost of side walls $ $8/m^2$

Cost of base $ $12/m^2$

Cost of side walls $=(2LH+2BH)\cdot 8$

Cost of base $=12LB$

Total cost $C=16LH+16BH+12LB$

$C=48LB+48B^2+12LB$

$C=\frac{192}{B}+48B^2+\frac{48}{B}$

differentiate C w.r.t B to get minimum cost

$\frac{\mathrm{d} C}{\mathrm{d} B}=-\frac{192}{B^2}+2\times 48 B-\frac{48}{B^2}$

$B^3=\frac{240}{2\times 48}$

$B=1.35 m$

$H=3\times 1.35=4.07 m$

L=2.19 m

C=$ 265.25

3 0

2 years ago

The following temperatures were recorded in Pasadena for a week in April: 87, 85, 80, 78, 83, 86, 90. Determine the interquartil

faltersainse [42]

Find the median first.

78, 80, 83, 85, 86, 87, 90. The middle one is 85, so there's the median. Take the upper half of this set, not including the median, 85, and then subtract 86 from 90. This is 4, so this is the interquartile range.

8 0

3 years ago

Pleaseeee help im confused best answer will get brainliest.

zepelin [54]

Answer:

17y-9x

Step-by-step explanation:

12y-6x+5y-3x

12y+5y-6x-3x

17y-9x

8 0

2 years ago

12 is _% of 40 (blank) A.52% B.48% C.30% D.28%

ipn [44]

Answer:

c 30

Step-by-step explanation:

because 30*40/100=12

3 0

3 years ago

Read 2 more answers