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Xelga [282]
3 years ago
10

Pleaseeee help!!!!!!! I will mark you as brainlinest for correct answer!!!!!!!!!!

Mathematics
1 answer:
katovenus [111]3 years ago
7 0

x^2-x-72 =0

 find 2 numbers when multiplied = -72 and when added = 1

the zeros are 9 and -8


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2. In a certain school, there are 7 teachers for every 252 students. If there are 468 students, how many
Naddik [55]

Answer:

66.6

Step-by-step explanation:

If 7 teachers for 252 student

We divide 468÷7= 66.6

66.6 teacher

Here you are

3 0
3 years ago
What is the slope of the line?
babunello [35]

Answer:

3

Step-by-step explanation:

7 0
3 years ago
Some people took part in a game. The frequency shows information about their scores.
Marizza181 [45]

Answer:

The mean = 17.54

Step-by-step explanation:

Form a table as below;

<u>Interval         Frequency{f}      Midpoint of frequency{x}          fx    </u>

1-7                    19                         4                                            76

8-10                  14                         9                                            126

11-15                  15                         13                                           195

16-20                20                        18                                           360

21-35                 10                        28                                          280

36-50                13                         43                                          559

Sum                   91                                                                        1596

The mean  of grouped data = Sum of { Interval Midpoint * Frequency } /Sum of frequency

The mean= 1596 / 91

The mean = 17.54

5 0
3 years ago
Please HELP!!!!
dedylja [7]
Absolute value equations have more than one solution because when the answer is in abs. value, it is positive, so there could be a negative answer and it would still be positive. For example |-5|=5 and |5|=5 as well. 
4+|2x|=-1 would have no solution because you cannot have the equation equal a negative since the 2x is in absolute value. 
8 0
3 years ago
Plz explain step by step, I'm taking Adv. Math (Algebra) It's confusing If can't explain, plz at least give right answer ✌
Mashcka [7]

Question 4:

OOOOOHHH a breakthrough! I was confused when I read this question but now I get it!

Okay when dividing this equation I would do this

5^4

25

Since 25 is 5 x 5 I would mark it as 5^2, and then I can subtract!

5^4

5^2 =

5^2

If you do it like this then it would be the first choice.



7 0
3 years ago
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