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2 years ago

If n + 7 = 10, evaluate 2n - 2 O 3 0 17 4 6

Mathematics

1 answer:

Alexandra [31]2 years ago

5 0

Answer:

The value of 2n - 2 is 4.

Step-by-step explanation:

Given the equation

$n + 7 = 10$

Subtract 7 from both sides of the equation

$n+7-7=10-7$

Simplify

$n=3$

Now substituting n = 3 in the equation

2n - 2 = 2(3) - 2

= 6 - 2

= 4

Therefore, the value of 2n - 2 is 4.

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Find the slope of the line that passes through the points (1, 7) and (3, 3).

Alenkasestr [34]

Answer:

Slope of the line that passes through the points (1, 7) and (3, 3) = -2

Step-by-step explanation:

Given in the question two co-ordinates,

(1, 7)

(3, 3)

here x1 = 1

x2 = 3

y1 = 7

y2 = 3

Formula to use

m = $\frac{y2 - y1}{x2 - x1}$

= $\frac{3-7}{3-1}$

= -4/2

= -2

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3 years ago

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For f (x) = 3x +1 and g(x) = x^2-6, find (g/f)(x)

sp2606 [1]

Answer:

$(g/f) (x) =\frac{x^2-6}{3x+1}$

Step-by-step explanation:

We have the following functions

$f (x) = 3x+1$

$g (x) = x^2-6$

To find $(g/f)(x)$ we must divide the function g(x) with the function f(x)

Then we perform the following operation

$(g/f) (x) =\frac{x^2-6}{3x+1}$

Finally we have that:

$(g/f) (x) =\frac{x^2-6}{3x+1}$

For $x \neq -\frac{1}{3}$

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3 years ago

HELP! Which number is a rational number?

VashaNatasha [74]

Answer:

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Tcecarenko [31]

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Step-by-step explanation:

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3 years ago

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