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lesya [120]
3 years ago
7

I need to check my answers

Mathematics
2 answers:
Darina [25.2K]3 years ago
6 0

Answer: I don't see any of the choices that you made.

Explanation: You haven't done anything for me to check.

Allisa [31]3 years ago
3 0
You haven’t done anything yet, therefore i cannot check them.
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Why mathematics is neccessary for students?explain​
tamaranim1 [39]

Answer:

Because depends on what you are going to work as you are most likely gonna use it

Step-by-step explanation:

3 0
3 years ago
Which statement about 3 multiplied by 23 must be true?
kumpel [21]

Answer:

(C) because the answer is 69

Step-by-step explanation:

you make 3 groups of 23 and u get 69

its greater then 23 and 4

and its not between 3 and 4 or between 23 or 3

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9 0
2 years ago
What is the completely factored form of x^4+8x^2-9
denis-greek [22]

Remark

You'll see it a whole lot easier if you make a substitution so that it looks like something you have already seen

Solution

let y = x^2

x^4 = x^2 * x^2

x^4 = y * y

x^4 = y^2

Now the expression becomes

y^2 + 8 y - 9  =  z

(y + 9)(y - 1) = z

Now put the x^2 back in.

(x^2 + 9) ( x^2 - 1) = z

x^2 - 1 becomes x + 1 and x - 1. At this level x^2 + 9 can't be factored.

Answer

(x^2 + 9) (x + 1)(x - 1)


3 0
3 years ago
Read 2 more answers
Which of the following is the standard form of the equation 5x2 - 20x = 15?
Sophie [7]
It is C. The first part is raised to the 2nd power. so it goes first since that is the highest. then the -20x because variables are understood to the power of 1, while normal numbers are understood to the power of 0. so the order is highest to lowest (2,1,0)
4 0
3 years ago
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What is the slope-intercept form of the function described by this table?
Firdavs [7]

Answer:

Someone deleted my answer, which sucks cuz I know there are a bunch of students who pretty much need this so here it goes; the answer is <em>y=5x+3</em>

Step-by-step explanation:

I did this math problem a long time ago, I don't remember how I got the answer, I just have the answer lol

4 0
3 years ago
Read 2 more answers
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