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serious [3.7K]
3 years ago
5

DOES ANYONE USE THIS APP? I NEED HELP​

Mathematics
2 answers:
vesna_86 [32]3 years ago
7 0

Answer:

no sorry! we don't study mathematics generally digitally ( computer or mobile ) , we use textbook, notebook and pain !

Sergio039 [100]3 years ago
3 0

Answer:

You can determine the root of the equation by multiple methods. However, that answer is correct. The root is -2.

Step-by-step explanation:

A root is where the graph crosses the x-axis. One trick I use to see if it is a root is by taking the numerator and plugging in the number for x. For example, \frac{x+2}{x^{2} -2}, and take the -2 and plug it in for x. The numerator would cancel out because -2 + 2 = 0. That is the way you can determine if it is a root or not.

I hope this helps, if you need any clarification let me know :)

You might be interested in
3.) What are the factors of 12?
larisa86 [58]

Answer:

the factors of 12 is (D) 1,2,3,4,6,12

Step-by-step explanation:

factors are numners that can divide a particular number without remainder

6 0
3 years ago
Y ÷ 18 = y ·<br><br> Please answer!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Elan Coil [88]

Answer:

y/y=18....

1=18

nope‍♂️

3 0
3 years ago
Suppose ACT Reading scores are normally distributed with a mean of 21.4 21.4 and a standard deviation of 5.9 5.9 . A university
Nutka1998 [239]

Answer:

29.2

Step-by-step explanation:

Mean = 21.4

Standard deviation = 5.9%

The minimum score required for the scholarship which is the scores of the top 9% is calculated using the Z - Score Formula.

The Z- score formula is given as:

z = x - μ /σ

Z score ( z) is determined by checking the z score percentile of the normal distribution

In the question we are told that it is the students who scores are in the top 9%

The top 9% is determined by finding the z score of the 91st percentile on the normal distribution

z score of the 91st percentile = 1.341

Using the formula

z = x - μ /σ

Where

z = z score of the 91st percentile = 1.341

μ = mean = 21.4

σ = Standard deviation = 5.9

1.341= x - 21.4 / 5.9

Cross multiply

1.341 × 5.9 = x - 21.4

7.7526 = x -21.4

x = 7.7526 + 21.4

x = 29.1526

The 91st percentile is at the score of 29.1526.

We were asked in the question to round up to the nearest tenth.

Approximately, = 29.2

Step-by-step explanation:

7 0
3 years ago
Solve by adding or subtracting.<br> x+y=-10<br> 2x-y=-8
riadik2000 [5.3K]

Answer:

x=-6\\y=-4

Step-by-step explanation:

To solve, isolate your first equation for y.

x+y=-10\\y=-x-10

Now, plug in this y value to your second equation.

2x-(-x-10)=-8\\2x+x+10=-8\\3x+10=-8\\3x=-18\\x=-6

Now, plug your x value into your first equation and solve for y.

-6+y=-10\\y=-4

3 0
4 years ago
Read 2 more answers
there are 5 cups of oat meal in a container. stella eats 1/3 cup of the oat meal every day for breakfast. in how many days will
rewona [7]

Answer:

15 days

Step-by-step explanation:

Well, since there are 5 cups of oatmeal, and she eats 1/3 a day, then the equation is: 5 divided by 1/3 then change 1/3 to its reciprocal which is 3. 5 times three is 15 so therefore Stella will finish it in 15 days.

<em>Your welcome.</em>

7 0
3 years ago
Read 2 more answers
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