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4 years ago

What is coplanar? Please explain fully. I really don't understand it. Thanks in advance.

1 answer:

8 0

Are three or more points which lie in the same plane. Recall that a plane is a flat surface which extends without end in all directions. It's usually shown in math textbooks as a 4-sided figure. You can see that points A, B, C and D are all coplanar points on a single plane:

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SOMEONE HELP ME PLEASE

faust18 [17]

Answer:

The answer is either 1, 3, or 5

Step-by-step explanation:

There are 6 sides on a singular die and the die is rolled twice the first time it rolls onto 4 and the second onto an odd number. The only odd numbers on a 6 sided die are 1, 3, and 5.

5 0

3 years ago

Read 2 more answers

Is x = -2 a function?

vitfil [10]

No BC the x value repeats

3 0

3 years ago

A six-sided number cube is rolled 500 times. The results are 280 even numbers and 220 odd numbers. How does the relative frequen

Grace [21]

Answer:

Choice B) experimental probability is larger

Step-by-step explanation:

There are 3 odd numbers (1,3,5) out of 6 total (1,2,3,4,5,6) on the number cube. So theoretically, the chances of rolling an odd number are 3/6 = 1/2 = 0.5

When we do the experiment, we roll an odd number 325 times out of 500 trials total. So the experimental probability is 325/500 = 0.65

Comparing the results of 0.5 and 0.65, we see that 0.65 is larger. So the experimental probability is larger.

Note: with a large number of trials, the experimental probability should get closer and closer to the theoretical probability. This is assuming that all trials are independent of one another and the number cube is properly weighted.

3 0

3 years ago

What is a function machine in math? Thank you.

tamaranim1 [39]

I think it is a fancy term for a function such as f(x)=x+9 or f(x)=x^93+x^x+4/x+4x/2
it is a machine because it takes in something and spits something out
a function is for every input (x) there is one output so you put a term in the x after the f and sbustitue the number for every x you see so
f(x)=x+9
so if you have f(3) thhen that equals f(3)=3+9=12

3 0

3 years ago

Read 2 more answers

A jewelry box with a square base is to be built with silver plated sides, nickel plated bottom and top, and a volume of 36 cm3.

Fittoniya [83]

Answer:

The box which minimizes the cost of materials has a square base of side length <u>4.16</u> cm and a height of <u>2.08</u> cm

Step-by-step explanation:

The cost is minimized when the cost of each pair of opposite sides is the same as the cost of the top and bottom. Since the top and bottom are half the cost of the sides (per unit area), the area of the square top and bottom will be double that of the sides. That is, the box is half as tall as wide, so is half of a cube of volume 72 cm³.

Each side of the square base is ∛72 = 2∛9 ≈ 4.16 cm. The height is half that, or 2.08 cm.

_____

If you want to see this analytically, you can write the equation for cost, using ...

h = 36/s²

cost = 2(1)(s²) + (2)(4s)(36/s²) = 2s² +288/s

The derivative is set to zero to minimize cost:

d(cost)/ds = 4s -288/s² = 0

s³ = 72 . . . . . multiply by s²/4

s = ∛72 = 2∛9 ≈ 4.16 . . . . . cm

h = 36/(2∛9)² = ∛9

The box is 2∛9 cm square and ∛9 cm high, about 4.16 cm square by 2.08 cm.

7 0

3 years ago