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astra-53 [7]
3 years ago
13

"I think of a number, take away 1 and multiply the result by 3."

Mathematics
1 answer:
zhenek [66]3 years ago
7 0

Answer:

(x-1)3

3x-3

Step-by-step explanation:

I came up with this.

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What value of M gives the system infinitely many solutions? -x+2y=16<br> Y=mx+8
Naya [18.7K]
First you move. -x for +x
2y = 16 + x
y = 8 + 1/2 x

the answer is

y = 1/2x + 8
4 0
2 years ago
A 5-column table has 4 rows. The first column has entries A, B, C, Total. The second column is labeled X with entries 45, 20, 25
Setler [38]

Answer:

Step-by-step explanation:

To see if two events are independent you can use the formula P(a|b) = P(a)

In this problem P(C|Y) = 35/75 = .4667 and P(C) = 110/300 = 3.667,

therefore C and Y are not independent events because P(C∣Y) ≠ P(C).

The answer is choice D

4 0
3 years ago
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i'm supposed to find the distance around this shape and i got it marked wrong on a test but i'm not sure why!
frutty [35]
The top is round so its 0
8 0
3 years ago
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Calculate X3 dx .<br><br>A.×2 + c<br>B. 3X2 + c<br>c . x4 + c<br>D . x4/4+c
olga nikolaevna [1]
\LARGE \int x^3 dx = \frac{x^4}{4}+C

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\LARGE \int x^n dx = \frac{x^{n+1}}{n+1} + C
4 0
3 years ago
To test the effectiveness of a business school preparation course, 8 students took a general business test before and after the
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Solution :

Group   Before     After

Mean    693.75    743.75

Sd         155.37     143.92

SEM        54.93     50.88

n              8            8

Null hypothesis : The preparation course not effective.

$H_0: \mu_d = 0$

Alternative hypothesis : The preparation course is effective in improving the exam scores.

$H_a : \mu_d>0$  (after -  before)

4 0
2 years ago
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