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amid [387]
3 years ago
13

A local little league has a total of 80 ​players, of whom 80​% are right​-handed. How many

Mathematics
1 answer:
Mariulka [41]3 years ago
5 0

Answer:

64

Step-by-step explanation:

80 percent *80 =

(80:100)*80 =

(80*80):100 =

6400:100 = 64

Now we have: 80 percent of 80 = 64

hope this helps :)

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The length of a rectangle is
laiz [17]

Answer:

20 inches long and 7 inches wide

8 0
2 years ago
Which of the following is a root of P(x)=-2x^3+x^2+4x+4?<br> -1<br> 0<br> 1<br> 2
ziro4ka [17]

Answer:

  2

Step-by-step explanation:

You know 0, 1, and -1 are not roots, because the constant is not 0 and the coefficients don't add to 0, even when negating the ones of odd-degree terms.

When evaluating polynomials by hand, it often works well to write them in "Horner form."

  P(x) = ((-2x +1)x +4)x +4

  P(2) = ((-2·2 +1)2 +4)2 +4 = (-3·2 +4)2 +4 = -2·2 +4

  P(2) = 0

2 is a root of P(x).

_____

I like a graphing calculator for questions like this. It can give an answer instantly. (The equation was pasted directly from the question into the calculator, so the solution took 2 clicks and 2 keystrokes.)

5 0
2 years ago
What is the volume of the prism to the nearest whole unit <br> 29<br> 240<br> 526<br> 715
Dahasolnce [82]

Answer:

Step-by-step explanation:

Volume of prism=lbh

Where l=13in.

b=11in

h=5in.

Volume of prism=13*11*5=715in^3

4 0
3 years ago
Read 2 more answers
After 5 years, Ben’s income has undergone several increases. Last month, Ben put $600 in savings, which was 10% of his net incom
Soloha48 [4]

Answer:

$6,000

Step-by-step explanation:

10/100 = x/600

= (600 * 100)/10

= 600 * 10

8 0
2 years ago
Find the square roots by division method of 210,681 please tell me
padilas [110]

Answer:

  459

Step-by-step explanation:

The "long division method" algorithm for square root makes use of the relation described by the square of a binomial.

  (a +b)² = a² +2ab +b² = a² +b(2a +b)

<h3>Steps</h3>

The value for which the root is desired is written with digits marked off in pairs either side of the decimal point.

The initial digit of the root is the integer part of the square root of the most-significant pair. Here that is floor(√21) = 4. This is shown in the "quotient" spot above the leftmost pair. The square of this value is subtracted, and the next pair brought down for consideration. Here, that means the next "dividend" is 506.

The next "divisor" will be 2 times the "quotient" so far, with space left for a least-significant digit. Here, that means 506 will be divided by 80 + some digits. As in regular long division, determining the missing digit involves a certain amount of "guess and check." We find that the greatest value 'b' that will give b(80+b) ≤ 506 is b=5. This is the next "quotient" digit and is placed above the "dividend" pair 06. The product 5(85) = 425 is subtracted from 506, and the next "dividend" pair is appended to the result. This makes the next "dividend" equal to 8181.

As in the previous step, the next "divisor is 2 times the quotient so far: 2×45 = 90, with space left for the least significant digit. 8181 will be divided by 900-something with a "quotient" of 9. So, we subtract the product 9(909) = 8181 from the "dividend" 8181 to get the next "dividend." That result is zero, so we're finished.

The root found here is 459.

__

<em>Additional comment</em>

In practice, roots are often computed using iterative methods, with some function providing a "starter value" for the iteration. Some iterative methods can nearly double the number of good significant digits in the root at each iteration.

Using this "long division method," each "iteration" adds a single significant digit to the root. Its advantage is that it always works, and is generally suitable for finding roots by hand. Once the number of root digits begins to get large, the "divisor" starts to be unwieldy.

8 0
1 year ago
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