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lisabon 2012 [21]
3 years ago
9

Six more than the product of three and a number

Mathematics
2 answers:
katen-ka-za [31]3 years ago
3 0

Answer:

6+3x

Step-by-step explanation:

A number will be given the variable x

So:

  • 6+(3x)
EastWind [94]3 years ago
3 0

Answer:

3x + 6.

Step-by-step explanation:

The number is x.

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T-5-2t+5 simplify expression
pav-90 [236]

Answer:

-t

Step-by-step explanation:

t - 5 - 2t + 5 =

t - 5 + 5 - 2t =

t - 2t =

-t

3 0
3 years ago
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In a study of 225 adults, the mean heart rate was 72 beats per minute. Assume the population of heart rates is known to be appro
Aleonysh [2.5K]
<span> The lower and upper bounds of the confidence intervals must be equally distanced from the mean 
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3 years ago
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Given that the quadratic equation has equal roots (k^2-1)x^2-2kx-3k-1=0
Alik [6]

Answer:

(See explanation for further details)

Step-by-step explanation:

The real expression is:

(k^{2}-1)\cdot x{{2} - 2\cdot k \cdot x - 3\cdot k + 1 = 0

The general equation for the second-order polynomial is:

x = \frac{2\cdot k \pm \sqrt{4\cdot k^{2}-4\cdot (k^{2}-1)\cdot (-3\cdot k + 1)}}{k^{2}-1}

This condition must be observed for the case of a quadratic equation with equal roots:

4\cdot k^{2} - 4\cdot (k^{2}-1)\cdot (-3\cdot k + 1) = 0

k^{2} + (k^{2}-1)\cdot (3\cdot k + 1) = 0

k^{2} + 3\cdot k^{3} - 3\cdot k - k^{2}-1 = 0

3\cdot k^{3} - 3\cdot k - 1 = 0

7 0
3 years ago
What is the solution to this equation?
Ksenya-84 [330]

Answer:

B. x= 5

Step-by-step explanation:

btw can i have brainliest please

8 0
3 years ago
What is the slope of the line graphed below (3,5) (0,-1)
Leona [35]
You can just do rise over run to find the slope or use the slope equation which is
y = y1 - y2 \div x1 - x2
3=x1
0=x2
5=y1
-1=y2
input those and you can get the slope graphed.
8 0
4 years ago
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