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WITCHER [35]
3 years ago
12

Please help me, im not sure for the second question

Mathematics
2 answers:
ra1l [238]3 years ago
4 0

Answer:

theanswer is 157.989

Step-by-step explanation:

garik1379 [7]3 years ago
3 0

Answer:

That should be correct!

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A rectangular box with an open top has a length of x feet, a width of y feet, and a height of z feet. It costs $4.30 per square
almond37 [142]

Answer:

C=$(4.30xy+5.40(xz+yz))

Step-by-step explanation:

Surface Area of a Cuboid=2(LW+LH+HW)

Since the top is open

Surface Area = LW+2(LH+HW)

If Length = x feet,

Width =y feet

Height = z feet

Surface Area = xy+2(xz+yz)

Area of the base=xy

If it costs $4.30 per square foot to build the base

Cost of the base=Cost Per Square Foot X Area = $4.30xy

Area of the sides =2(xz+yz)

If it costs $2.70 per square foot to build the sides

Cost of the sides=Cost Per Square Foot X Area of the sides

= 2.70 X 2(xz+yz)

=5.40(xz+yz)

Cost of Constructing the Box = Cost of Constructing the Base + Cost of Constructing the Sides.

Therefore,

C=$(4.30xy+5.40(xz+yz))

7 0
3 years ago
Suppose that two cards are randomly selected from a standard​ 52-card deck. ​(a) what is the probability that the first card is
Nutka1998 [239]
There are 13 clubs in a standard 52 card deck. The first time you draw a club the odds of doing it are
13/52 = 1/4
The second time you draw a club, the number of clubs have gone down by 1 and the number of cards in the deck have also gone down by 1.

So this time the odds are12/51

The probability of both happening, one after the other without replacement is
1/4 * 12/51 = (1*12)/(4*51) = 12/204 = 3/51 = 1/17

1/17 = 0.0588

8 0
4 years ago
Can someone explain this to me or help me get the answer? it is about centroids in triangles.
nadezda [96]

Answer: A centroid of a triangle is the point where the three medians of the triangle meet that is what i got on my test hope this helps :)

7 0
4 years ago
Amy purchased a prepaid phone card for $15. Long distance calls cost 16 cents a minute using this card, Amy used her card only o
kondor19780726 [428]

Answer:44

Step-by-step explanation:

15-7.96=7.04

7.04/ 0.16=44

her call lasted 44 minutes

7 0
3 years ago
Please help, idek what to do and it's a test!!!! I'll give 25 points!!!!
Schach [20]

Answer:

Ok so what you are suppose to do is find the area

Step-by-step explanation:

Which here is an explanation of how to find area (The simplest (and most commonly used) area calculations are for squares and rectangles. To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.)

8 0
4 years ago
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