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3 years ago

What is the value of the expression below when w =9 and x=2 w – 4x

Mathematics

2 answers:

Vera_Pavlovna [14]3 years ago

8 0

Answer:

Step-by-step explanation:

9 - 4 x 2

4 x 2 = 8

9 - 8 = 1

Nookie1986 [14]3 years ago

8 0

Answer:

Step-by-step explanation:

9-(4 x 2)

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zlopas [31]

I believe the answer is C.

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If you simplify C, its answer becomes equivalent to the answer of the original problem:

(90 - 20) + (3 - 1) + (0.5 - 0.4) + (0.03 - 0.01)

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3 years ago

Given f(x)=1/x+5 and g(x)=x-2

vladimir1956 [14]

For this case we have the following functions:

$f (x) = \frac {1} {x + 5}\\g (x) = x-2$

We must find f (g (x)). So:

$f (g (x)) = \frac {1} {(x-2) +5} = \frac {1} {x-2 + 5} = \frac {1} {x + 3}$

Finally we have to:

$f (g (x)) = \frac {1} {x + 3}$

For the function to be defined the denominator must be different from 0. That is x different from -3.

Answer:

Option B

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3 years ago

How do i do this? And whats the answer

sveticcg [70]

Step-by-step explanation:

just guess and see

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3 years ago

The circle below is centered at the point (4,1) and has a radius of length 2. What is it’s equation?

vekshin1

Answer:

Option B:

$(x-4)^2+(y-1)^2 = 4$

Step-by-step explanation:

Given

Centre = (h,k) = (4,1)

Radius = r = 2

The standard equation of circle is:

$(x-h)^2+(y-k)^2=r^2$

Putting the values of h,k and r

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Hence, the correct option is option B

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Answer:

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Step-by-step explanation:

I took a test and got it correct.

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