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svlad2 [7]
3 years ago
7

If n is a number write an algebraic expression for..... Fifteen more than a number

Mathematics
2 answers:
11111nata11111 [884]3 years ago
6 0
Let X equal unknown value X+15
qwelly [4]3 years ago
5 0
If n= a variable (unknown number) then you need fifteen more than that variable the Algebraic expression would be n+15
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Which of the following is algebraically equivalent to the sum of 4x^2 -8x +7 And 3x^2-2x-5
VARVARA [1.3K]

All you have to do, is combine like terms. Let's go through it:

(4x^2-8x+7)+(3x^2-2x-5)

Arrange it so you can easily combine like terms:

4x^2+3x^2-8x-2x+7-5 = 7x^2-10x+2

So, your answer for the sum is 1) 7x² - 10x + 2

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Round to the nearest tenth Pythagorean Theorem
Lemur [1.5K]
I think 8.0 is the answer
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3w = 30 .... What is the solution of this equation?
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Answer:

3w = 30

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3 years ago
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I need help! I forgot how to do this!! Please help!
Dovator [93]

First change the mixed fraction into an improper fraction

7 1/2 = 15/2

Next, change multiply 2 to both numerator and denominator

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30/4

Each piece needs 3/4 of an inch. Divide 30 with 3

30/3 = 10

c) 10 pieces is your answer

hope this helps

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3 years ago
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Alenkinab [10]

The given study is observational study

To gauge how strongly two variables are related to one another, correlation coefficients are used.

A statistical indicator of the strength of the association between the relative movements of two variables is the correlation coefficient. The values are in the -1.0 to 1.0 range. There was a measurement error in the correlation if the estimated value was larger than 1.0 or lower than -1.0. Perfect negative correlation is shown by a correlation of -1.0, and perfect positive correlation is shown by a correlation of 1.0. A correlation of 0.0 indicates that there is no linear link between the two variables' movements. Finance and investing can benefit from the usage of correlation statistics.

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2 years ago
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