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Sauron [17]
3 years ago
7

Three good friends are in the same algebra class. Their scores on a recent test are three consecutive integers whose sum is 252

? Pls asap
Mathematics
1 answer:
vichka [17]3 years ago
3 0

Answer:

83, 84, 85

Step-by-step explanation:

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An open-top box with a square base is to have a volume of 4 cubic feet. Find the dimensions of the box (in ft) that can be made
Lemur [1.5K]

Answer:

The dimension of box=2ft\times 2ft\times 1ft

Step-by-step explanation:

We are given that

Volume of box=4 cubic feet

Let x be the side of square base and h be the height of box

Volume of box=lbh=x^2h

4=x^2h

h=\frac{4}{x^2}

Now, surface area of box,A=x^2+4xh

A=x^2+4x(\frac{4}{x^2})=x^2+\frac{16}{x}

\frac{dA}{dx}=2x-\frac{16}{x^2}

\frac{dA}{dx}=0

2x-\frac{16}{x^2}=0

2x=\frac{16}{x^2}

x^3=8

x=2

\frac{d^2A}{dx^2}=2+\frac{32}{x^3}

Substitute x=2

\frac{d^2A}{dx^2}=2+\frac{32}{2^3}=2+4=6>0

Hence, the area of box is minimum at x=2

Therefore, side of square base,x=2 ft

Height of box,h=\frac{4}{2^2}=1 ft

Hence, the dimension of box=2ft\times 2ft\times 1ft

5 0
2 years ago
Graph y=1/4x-6 Use the line tool and select two points on the line
DochEvi [55]

Answer:

2 points would be 10 and -10

Step-by-step explanation:


7 0
3 years ago
Help please.........................
Juli2301 [7.4K]

Answer is

8 and 2

I hope this helps

6 0
2 years ago
What is the value of 4 x minus 7 when x = 4?191623
katen-ka-za [31]

Solution:

Given:

4x-7

when x = 4,

\begin{gathered} Substitute\text{ }x=4\text{ into }4x-7 \\ 4x-7=4(4)-7 \\ =16-7 \\ =9 \end{gathered}

The answer is 9.

7 0
1 year ago
A certain test is worth 125 points. How many point are needed to obtain a score of 85%
aksik [14]

Answer:

106

Step-by-step explanation:

85% of 125 is 106 so therefore you would need to answer 106 correct.

4 0
2 years ago
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