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Juli2301 [7.4K]
3 years ago
13

What is 4z - 3/z + 6 when z = −3? I need this asap!!

Mathematics
2 answers:
OlgaM077 [116]3 years ago
7 0
-5 is what I got, if you plug in -3 where z is.
svetoff [14.1K]3 years ago
5 0
4(-3)-3/(-3)+6
PEMDAS
4(-3)=-12
-3/-3=1
-12+1=-11
-11+6
-5
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Solve for x. 4/x−3+2/x^2−9=1/x+3
Levart [38]

Answer:

x=-\frac{17}{3}

Step-by-step explanation:

we have

\frac{4}{x-3}+\frac{2}{x^{2}-9}=\frac{1}{x+3}

Solve for x

Applying difference of squares in the denominator of the second term in the left side

\frac{4}{x-3}+\frac{2}{(x+3)(x-3)}=\frac{1}{x+3}

Multiply both sides by (x+3)(x-3)

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

Apply the distributive property in the left side

4x+12+2=x-3

Combine like terms left side

4x+14=x-3

Group terms

4x-x=-3-14

3x=-17

Divide by 3 both sides

x=-\frac{17}{3}

6 0
4 years ago
Find (f + g)(x) and its domain.
Nostrana [21]

Answer:

The domain of function( f+ g)(x) ( (-∞,∞))

Step-by-step explanation:

Given  ( f + g)x = f(x) +g(x)

The domain of function (f + g)(x)  is (-∞,∞)

<em>Example:-</em>

<em>f(x) = 2 x² + 3x and  g(x) =  4x² +3</em>

<em>(f + g)(x) = f(x) +g(x)</em>

<em>              =  2 x² + 3x + 4 x² + 3</em>

<em>             =  6x ² + 3 x + 3</em>

<em>The domain of  (f + g) (x)  is ( -∞,∞))</em>

3 0
3 years ago
Ac-ab=2 solve for a. please someone can help me . thanks
vazorg [7]
Ac - ab = 2

Factor out a

a(c-b) = 2

Then divide the expression by c-b to solve for a.

Do this on both sides.

a(c-b)/(c-b) = 2/(c-b)

a = 2/c-b

The solution is a = 2/c-b.
6 0
3 years ago
HELP FAST PLEASE!!
stira [4]
I think it is B. and C.
secx = 3 and tanx = 3
Hope it helps
3 0
4 years ago
Read 2 more answers
Will give brainliest answer
taurus [48]

Answer:

first two are squares.

8 0
3 years ago
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