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3 years ago

How much are 6 of these $40’s

Mathematics

1 answer:

Kisachek [45]3 years ago

5 0

Answer:

$240

Step-by-step explanation:

there are 6 sets of 2 $20's which make $40, so you'd multiply 40 by 6 them you'd get $240

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If f(x)= -3x-5 and g(x)= 4x-2 find (f+g)(x)

juin [17]

Known :

f(x) = -3x - 5

g(x) = 4x - 2

Asked :

(f+g)(x) = ...?

Answer :

(f+g)(x) = (-3x - 5) + (4x - 2)

= (-3x + 4x) + (-5 - 2)

= x + (-7)

= x - 7

So, the value of (f+g)(x) is x - 7

Hope it helpful and useful :)

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3 years ago

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Studentka2010 [4]

The answer is A and C

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2 years ago

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Another way to find slope is with the slope formula (y2-y1/x2-x1 find the slope of (3,2) (7,4)

Lisa [10]

Answer: 2/4=1/2

Step-by-step explanation: 4-2=2. 7-3=4

4 0

3 years ago

If f(x) = 5x − 3, which expression represents its inverse function?

tangare [24]

Answer:

$f ^{-1}(x)=\frac{x+3}{5}$

Step-by-step explanation:

To find the inverse of a function f (x) follow the steps below:

1) Make y = f (x)

$y= 5x - 3$

2) Solve for the variable x

$y+3= 5x - 3+3$

$y+3= 5x$

$x=\frac{y+3}{5}$

3) Exchange the variable x with the variable y

$y=\frac{x+3}{5}$

4) Make $y = f ^{-1}(x)$

$f ^{-1}(x)=\frac{x+3}{5}$

Finally, the inverse of the function f (x) is: $f ^{-1}(x)=\frac{x+3}{5}$

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3 years ago

What is the value of sine of begin argument 45 degrees end argument?

nirvana33 [79]

Answer:

Option A

fraction numerator square root of 2 over denominator 2 end fraction

Step-by-step explanation:

The answer can be obtained using a calculator.

It corresponds to a notable identity

sin (45) = $\sqrt{2}$ / 2

sin (45) = 0.7071

$\sqrt{2}$ / 2 = 0.7071

Please see attached picture

5 0

2 years ago