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4 years ago

9

30 POINTS HURRY will give brainliest

1 answer:

coldgirl [10]4 years ago

7 0

Answer:

(1,4) IS THE ANSWER. I 100% believe that's the answer

Step-by-step explanation:

I can't explain it. (Next time when you get the same kind of question just look for a clear white paper. Cut it and make sure it's the size as the graph. Then put it on the computer screen then trace the shape that's on the graph and label the points like how they're labeled in your graph. After that, as the paper is one the screen of your computer, place a pencil or a pen on the paper and make sure it's aligned in the center of the graph. Press the pencil or pen a bit hard so the paper won't slide or fall out. After that rotate the paper to the ___degrees that's stated in the question. If the rotation is clockwise go clockwise. If the rotation is counterclockwise go counterclockwise. After that you'll get the answers.)

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A manufacturer wants to make open tin boxes from pieces of tin with dimensions 8 in. by 15 in. by cutting equal squares from the

Stells [14]

Answer:

$\frac{5}{3}$ in

Step-by-step explanation:

Let x be the side of square.

Length of box=8-2x

Width of box=15-2x

Height of box=x

Volume of box= $L\times B\times H$

Substitute the values then we get

Volume of box=V(x)= $(8-2x)(15-2x)x=(15x-2x^2)(8-2x)$

$V(x)=120x-30x^2-16x^2+4x^3$

$V(x)=4x^3-46x^2+120x$

Differentiate w.r.t x

$V'(x)=12x^2-92x+120$

$V'(x)=0$

$12x^2-92x+120=0$

$3x^2-23x+30=0$

$3x^2-18x-5x+30=0$

$3x(x-6)-5(x-6)=0$

$(x-6)(3x-5)=0$

$x-6=0\implies x=6$

$3x-5=0\implies x=\frac{5}{3}$

Again differentiate w.r.t x

$V''(x)=24x-92$

Substitute x=6

$V''(6)=24(6)-92=52>0$

Substitute x=5/3

$V''(5/3)=24(5/3)-92=-52$

Hence, the volume is maximum at x= $\frac{5}{3}$

Therefore, the side of the square , $x=\frac{5}{3}$ in cutout that gives the box the largest possible volume.

5 0

3 years ago

Explain how finding the nth element in a pattern is using deduction

Kryger [21]

I don't know kid I'm busy right now

6 0

3 years ago

A box contains 2 dozen pairs of contact lenses ,of which 8 pairs are tinted. A pair of contact lenses is drawn at random from th

tia_tia [17]

Answer:

$\dfrac{2}{3}.$

Step-by-step explanation:

It is given that a box contains 2 dozen pairs of contact lenses ,of which 8 pairs are tinted.

1 dozen = 12 units

Total pairs of contact lenses $=2\times 12 = 24$

Tinted pairs of contact lenses = 8

Pairs of contact lenses not tinted = 24 - 8 = 16

If a pair of contact lenses is drawn at random from the box, then we need to find the probability that it is not tinted.

$P(\text{Not tinted})=\dfrac{\text{Pairs of contact lenses not tinted}}{\text{Total pairs of contact lenses}}$

$P(\text{Not tinted})=\dfrac{16}{24}$

$P(\text{Not tinted})=\dfrac{2}{3}$

Therefore, the required probability is $\dfrac{2}{3}.$

4 0

3 years ago

Carlos predicts he has 24 dollars in his wallet. If Carlos actually had 33 dollars, what was Carlos' percent error?

Serggg [28]

Learned this yesterday, lol.
It's basically just:
100[ (33-24)/24 ]
100[ 9/24 ]
100[ 0.375 ]
37.5%

5 0

3 years ago

A bowling alley charges $8 for shoes and $3 per game Claire brought $20 what inequality describes this

SSSSS [86.1K]

Answer:

20 <u>></u> 8+3g

Step-by-step explanation:

7 0

3 years ago