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3 years ago

Is a basket ball a polyhedron

Mathematics

2 answers:

wolverine [178]3 years ago

6 0

I think its
no but im not sure

Ilya [14]3 years ago

5 0

No, it's a sphere and a polyhedron has many faces, which would be flat

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What is the algebraic expression of twelve minus the product of nine and a number

gtnhenbr [62]

Let's represent the unknown number with the variable x:
9x - 12
9x is the product of 9 and a number, and it is being subtracted by 12

3 0

3 years ago

Someone solve this quick please

Dmitriy789 [7]

Answer: 2n^2+3n-4

1st differnce is 3, 7, 11, 15

2nd differnce is 4

so its 2n^2

we compare it to teh 2n^2 sequence

2 8 18 32 50

-1 2 9 20 35

difference is 3, 6, 9, 12,15

so it is 3n-4

8 0

3 years ago

Each term in the sequence below is 20 less than 5 times the previous term. What is the value of x+y?

ziro4ka [17]

Answer:

The value of x + y is -16.

Step-by-step explanation:

If each term is calculated by multiplying the previous one times 5 and then subtracting 20 from that result, then we can use that information to relate the first term (x) and the second one (0).

Following the info above, the following equation applies:

0 = 5 x - 20

then we solve for x:

5x = 20

x = 20/5

x = 4

Now we do the same study relating the second term (0) and the third one (y):

y = 5 (0) - 20

y = -20

Now that we have the value for both unknowns, we can estimate what they ask you: The value of x + y:

x + y = 4 + (-20) = 4 - 20 = -16

5 0

3 years ago

What is the experimental probability that a 10th-grade student chosen at random has at least one, but no more than two, siblings

Sophie [7]

Answer:

the experimental probability is 70%

Step-by-step explanation:

PLEASE HELP, TIMEDThe table shows the results of a survey in which 10th-grade students were asked how many siblings (brothers and/or sisters) they have.

What is the experimental probability that a 10th-grade student chosen at random has at least one, but no more than two, siblings?

To the nearest whole percent, the experimental probability is

a. 65%.

b. 70%

c. 75%

d. 80%

We are given to find

the experimental probability that a 10th-grade student chosen at random has at least one, but no more than two, siblings

we know that

probability = ( number of favourable outcomes)/ ( total possible outcomes)

a 10th-grade student chosen at random has at least one, but no more than two, siblings

so, there can be one or two siblings

so, total number of such students =18+10=28

Number of favourable outcomes =28

total number of students =4+18+10+8=40

so, total favourable outcomes =40

now, we can find probability

$p=\frac{28}{40}\\\\p=\frac{28}{40}\times 100\\\\p=70$

So,

Therefore, the experimental probability is 70%

7 0

3 years ago

Please help me.........

Viktor [21]

Find the unit rate, which is also known as slope, constant rate of change!

8 0

3 years ago