no link need right answer

Answer:

Let x represent the edge dimension of the square base in feet. Then the area of the base or lid is x², and the height of the box is 5/x². Total cost is then ...

... cost = cost of lid + 4×(cost of one side) + cost of bottom

... cost = 0.2x² + 4×(0.2x(5/x²)) + 0.5x²

... cost = 0.7x² + 4/x

We can differentiate this with respect to x and set that derivative to zero. This will give us the x-value at which the cost is a minimum.

... d(cost)/dx = 1.4x -4/x² = 0

... x³ = 4/1.4

... x = ∛(20/7) ≈ 1.419

Then the height of the box is

... height = 5/x² ≈ 5/2.01351 ≈ 2.483

The box is 1.491 ft square and 2.483 ft high.

______

The average cost of the top and bottom is (0.2 +0.5)/2 = 0.35 per square foot. The overall cost will be minimized when the average cost of each face is the same. That is, the areas of the lateral faces will be equal and must be 0.35/0.2 = 1.75 times the area of the top or bottom to make the average cost of a lateral face equal to that of the top or bottom. Hence, the base will be square, and the box will be 1.75 times as high as it is wide or deep. The base edge dimension is then ∛(5/1.75) ≈ 1.419 ft.

Step-by-step explanation:

Answer:

the first one..... the second one.... and the fourth one :) im not really sure but this is NY closest to right.

Answer:

D. 4.35 minutes

Brainliest pls

Step-by-step explanation:

The small squares represent 30 (each one is equal to 10) if the 2 rows of squares represent  200, if the two rows of 10 squares only represent 20 becuase 10+10=20 then the squares equal 210 (each square equals 70)

Answer:

It is ten

Step-by-step explanation:

Answer:

x^2 -8x -65

Step-by-step explanation:

Answer:

x^2-8x-65

Step-by-step explanation:

FOIL it out

Answer:

1. X is added to 8

2. Subtract 14 by a number

3. Multiply 2 after you add 3 into a number.

4.. Twice a number plus 3

5. Divide 15 by a number

Step-by-step explanation:

Answer:

last 2

(2xn) +3

[tex]y\sqrt{15}[/tex]=x (X x Y) = 15

Step-by-step explanation:

Answer: It would be Second leg = 15

Step-by-step explanation:

From my understanding, you are supposed to find the second leg of the right triangle by Pythagoras theorem.

Hypotenuse: 25

One leg: 20

Second leg: x

Pythagoras theorem: hypotenuse² = adjacent² + opposite²

c² = a² + b²

25² = 20² + b²

b² = 25² - 20²

b² = 625 - 400

b² = 225

b = √225

b = 15

Therefore, the second leg of the right triangle is 15.

Answer:

is something supposed to be there

Step-by-step explanation:

Answer: D. 48in²

Step-by-step explanation:

[tex]A=\frac{1}{2}bh\\A=\frac{1}{2}(16)(6)\\A=48in^{2}[/tex]

Answer:

Both -1.5 and -3/2 will be halfway between -2 and -1 on the number line. 3/2 will be halfway between 1 and 2. -4/3 will be between -1.5 and -1.

Answer:

Well I can’t really do anything, the best thing I can tell you is that for each number, look at each option and Plot it from there.

You can turn all these into decimals since the number line is a whole number line and decimals are easier to work with in this situation then fractions. So you would have

-1.5, 1.5, -1.5, and -1.33333...

So -1.5 and -3/2 are the same so thats one plot, that would go between -1 and -2.

1.5 goes between 1 and 2

And -1.333...goes more closer to -1 between -2 and -1

Answer: the answer is c

Step-by-step explanation:

Because I did the test

Answer:

C

Hope This Helps!

a) a+b=b+a

the commutative property of whatever number is it turned around

b) a * b= b*a

the commutative property of whatever number is it turned around

c) b+0=b

the additive property is whatever adds to zero is that number.

d) b*1=b

the multiplication property of one is whatever mutilply by 1 is that number.

Answer:

22 feet/s

Step-by-step explanation:

Answer:

Step-by-step explanation:

The units of measurement listed below are suitable:

ft/sec

ft/min

miles/hr

Weren't there more choices?

Answer:

10 C

Step-by-step explanation:

easy put 50 for F

Answer:

In your head, you can convert the fraction 3/12 into a decimal. So divide 3 by 12 and you would get 0.25. I hope this helps :)

Step-by-step explanation:

Answer:

19.7

Step-by-step explanation:

64 miles converts to 3.25 inches on the map

64/3.25 = 19.7 mi/inch

Letter C, E, and F: 2 8/10, 2.8, and 28/10

Step-by-step explanation: The shaded pillars/rectangles inside the squares account for the fractions. In this question, there are 10 pillars per square and 2 shaded in squares. Since there are two full squares, there are two wholes. In the third block, there are only 8 shaded. Because 8 out of ten are shaded, the fraction would be 8/10 (said as eight tenths). Overall, there are two wholes (the shaded squares) and 8/10 of a whole. Therefore, it is 2 8/10. 0.8 equals 8/10 (you can determine it by the way it is said ex: you would say “zero and ...” (and = decimal) “... eight tenths” or just “eight tenths” for .8, and 8/10 is said the same way). Since 2.8 and 2 8/10 are equal, 2.8 would also be an answer. 28/10 would be another correct answer because the two wholes/squares each have 10 pillars. In total, there are 20 pillars for the two wholes. If the 8/10 (8 out of 10) is added, the total would be 28/10. Hope this helps!

Answer:

the ft is 97.3 repeating or 1168 inches

Step-by-step explanation:

Answer:

get a ruler and meshure out 72 millimeters.

Step-by-step explanation:

did exam

Answer: I'm just gonna answer this question. Use a ruler with millimeters.

Step-by-step explanation:...yea-

Answer:

3 yrs

Step-by-step explanation:

1st year=600*1.05=630

2nd year=630*1.05=661.5

3rd year=661.5*1.05=794.57

Answer:

b=3

Step-by-step explanation:

Isolate the b:

Check your answer:

Answer:

i would say 48

Step-by-step explanation:

Answer:

The answer is 16.

Step-by-step explanation:

Formula: B*h÷2

Base = 8

Height = 4

8*4 = 32

32÷2 = 16

Answer:

Step-by-step explanation:

Answer:

B 66%

Step-by-step explanation:

100% (total) - 34% (P(not landing on blue)) = 66%

Answer:

B) 140

Step-by-step explanation:

August 8: 20 tickets

August 10: 20 tickets

August 11: 25 tickets

August 12: 40 tickets

August 13: 35 tickets

Added all together, it's 140 tickets sold.  So, Option B is correct.

Hope this helps! :)

Answer:

Both angles add up to 90° so they are complementary angles, x = 55

Step-by-step explanation:

=> We know that both angles add to 90°, so the equation will be;

(x - 20) + (x) = 90

=> Using algebra if solved all the way down, "x" will be 55.

Hope this helps!

Answer:

2

Step-by-step explanation:

the midian is the middle

Given : 2, 3, 8, 9, 2, 4, 7, 2 .

To Find: Median of data .

Solution : Firstly arranging the data in ascending order we get , 2 , 2 , 3 , 4 , 7 , 8 , 9 . Here number of terms = 7 .

So the median will be the middlemost value.

Here the middle most value is 4 .

Therefore the median is 4 .