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lara [203]
3 years ago
13

I need help I’m give the most points if u help

Mathematics
2 answers:
svetlana [45]3 years ago
5 0
Yes the person above is right because no matter what you do in division you won’t be able to divide by 0,
Elina [12.6K]3 years ago
4 0

B- you can't divide by 0

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FACTOR and list your 4 steps: 5x^2y - 30xy^2
Dahasolnce [82]

Answer:

5x • (x + 3y) • (x - 2y)

Step-by-step explanation:

6 0
2 years ago
The course grade in a statistics class is the average of the scores on five examinations. Suppose that a student's scores on the
nadya68 [22]

Answer:

84 is the highest possible course average

Step-by-step explanation:

Total number of examinations = 5

Average = sum of scores in each examination/total number of examinations

Let the score for the last examination be x.

Average = (66+78+94+83+x)/5 = y

5y = 321+x

x = 5y -321

If y = 6, x = 5×6 -321 =-291.the student cannot score -291

If y = 80, x = 5×80 -321 =79.he can still score higher

If If y = 84, x = 5×84 -321 =99.This would be the highest possible course average after the last examination.

If y= 100

The average cannot be 100 as student cannot score 179(maximum score is 100)

8 0
3 years ago
Solve. i really need help<br><br><br><br> z =
BlackZzzverrR [31]
\dfrac{7z-1}{2}=3z-2\\&#10;7z-1=6z-4\\&#10;7z-6z=-4+1\\&#10;z=-3
5 0
3 years ago
If a rectangle has an area of x^2+x-20 and a width of x-4, what is the length?
Mrac [35]

Answer:

This (x - 5) represents the length of the rectangle.

Step-by-step explanation:

The formula for the area of a rectangle of length L and width W is A = L * W.

Here, the width is x - 4 and the area is x^2 + x - 20.  Dividing the width (x - 4) into the area results in an expression for the length:

x - 4  /   x^2 + x - 20

Let's use synthetic division here.  It's a little faster than long division.

If the divisor in long division is x - 4, we know immediately that the divisor in synthetic division is 4:

4   /   1    1    -20

              4     20

    --------------------

         1     5     0

This synthetic division results in a remainder of 0.  This tells us that 4 (or the corresponding (x - 4) is indeed a root of the polynomial x^2 + x - 20, and so *(x - 4) is a factor.  From the coefficients 1 and 5 we can construct the other factor:  (x - 5).  This (x - 5) represents the length of the rectangle.

4 0
2 years ago
Suppose that 10% of adults belong to health clubs, and 40% of these health club members go to the club at least twice a week. Wh
kozerog [31]

Answer:

4% of all adults go to a health club at least twice a week

Step-by-step explanation:

  • the proportion of adults who belong to health clubs is 10% that is 0.10
  • the proportion of these adults (health club members) go to the club at least twice a week is 40%, that is 0.40.

Thus, the proportion of all adults go to a health club at least twice a week is

0.10 × 0.40 = 0.04, that is 4%

3 0
3 years ago
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