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USPshnik [31]
3 years ago
14

Simplify this expression using the distributive property

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
8 0

Answer:

When you use the distributive property, you multiply the two numbers together, just like simplifying any product. You will also see another example where the expression in parentheses is subtraction, rather than addition. You will need to be careful to change the sign of your product.

Step-by-step explanation:

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Find the domain of the function
krok68 [10]

Answer:

Domain should be Df = {x>-1}

Step-by-step explanation:

Insert the g(x) into the x of f(x) function. Then let the denominator of the fg(x) = 0 <em>(</em><em>u</em><em>n</em><em>d</em><em>e</em><em>f</em><em>i</em><em>n</em><em>e</em><em>d</em><em>)</em>. Find x.

4 0
3 years ago
Read 2 more answers
Show that if A is​ invertible, then det Upper A Superscript negative 1det A−1equals=StartFraction 1 Over det Upper A EndFraction
netineya [11]

Answer:

Therefore  

 det(A)*det(A^{-1}) = 1      and         det(A^{-1}) = 1/det(A)

Step-by-step explanation:

Remember that  if  

I  =  Identity Matrix    

then    det(I)=1.

Also remember that for any invertible matrix  

A*A^{-1}  = I =Identity Matrix.

Therefore    

det(A*A^{-1})  = det(A)*det(A^{-1}) = det(I) = 1

Therefore  

 det(A)*det(A^{-1}) = 1      and         det(A^{-1}) = 1/det(A)

7 0
3 years ago
P(vanilla) =0.3 P(sundae)=0.2 P(vanilla and sundae) =0.15 find the probability that a customer ordered vanilla ice cream given t
Art [367]

Answer:

0.75

Step-by-step explanation:

P(A | B) = P(A and B) / P(B)

P(vanilla | sundae) = P(vanilla and sundae) / P(sundae)

P(vanilla | sundae) = 0.15 / 0.2

P(vanilla | sundae) = 0.75

6 0
3 years ago
An experiment involves flipping a coin three times.
Xelga [282]

Answer:

19/50

Step-by-step explanation:

If you put this in decimal form, it's 0.38.

All you have to do is convert the decimal to a reduced fraction, which is 19 over 50 (19/15).

Hope this helps you!

3 0
2 years ago
3x + 4y = 14<br>– 3x – 4y = -14 solve using Gauss-jordan elimination​
GenaCL600 [577]

Answer:

Step-by-step explanation:

Matrix'is determinat:

X1    Y1

X2   Y2

D=(X1*Y2) - (X2*Y1)

D=(3X-4) -  (-3*4)

D=0

Determinant of X

I 1       Y1

I 2      Y2

DX=( I 1 *Y2) - ( I 2*Y1)

DX= (14* -4) - (-14*4)

DX=0

Determinant of Y

X1    I 1

X2   I 2

DY= (X1 * I2) - (X2* I1)

DY=(3X-14) - (-3*14)

DY=0

The result of the variables are solved by:

X=DX/D....            Y=DY/D

X=0/0                  Y=0/0

X=NaN                 Y=NaN

4 0
3 years ago
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