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alekssr [168]
2 years ago
7

What is the domain of F(x)=9-x?? F F(x) >9 G All real numbers H-3 1 x59

Mathematics
1 answer:
Julli [10]2 years ago
8 0
I’m pretty sure it’s h because the lines meet in the x axis
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What is the converse of the statement below?<br> “If today is Friday, then tomorrow is Saturday."
Ugo [173]

Answer:

C (Sorry if its incorrect)

Step-by-step explanation:

6 0
2 years ago
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Simplify.<br><br> (fg2)4<br><br> Can you please help me? I'm stuck on this question
Natasha2012 [34]

Answer:

4fg^{2}

Step-by-step explanation:

1) Remove parentheses.

fg^{2} *4

2) Regroup terms.

4fg^{2}

5 0
2 years ago
What is the solution to the system? 1. x-y + 2 z = -7<br> 2. y + z =1<br> 3. x-2 y - 3 z = 0
kvv77 [185]

You'd find this problem easier to understand and do if you'd please list the defining equations vertically and line up variables:

1. x - 1y + 2 z = -7

2. y + 1z = 1

3. x - 2 y - 3 z = 0 Now eliminate the line numbers:

x - 1y + 2 z = -7

1y + 1 z = 1

x - 2 y - 3 z = 0

Let's use the elimination method to eliminate variable z: Seeing that z = 1 - y, we transform the first equation into 1x - 1y + 2(1-y) = -7

and the third into x - 2y - 3(1-y) = 0.

Simplifying 1x - 1y + 2(1-y) = -7

and x - 2y - 3(1-y) = 0,

we get

1x - 2y - 3 + 3y) = 0 and 1x - 1y + 2 - 2y = -7

which in turn simplify to

1x + y = 3 and 1x - 3y = -9

Having eliminated the variable z, we now focus on eliminating x. Mult. the 1st equation by -1, obtaining -1x - 1y = -3. Add this result to 1x - 3y = -9:

0 - 4y = -12, which tells us that y = 3. Subbing 3 for y in 1x + 1y = 3 tells us that x = 0.

All we have left to determine is the vaue of z.

Borrowing Equation 3, from above, we get x - 2 y - 3 z = 0, and into this equation we substitute x = 0 and y = 3: 0 -2(3) - 3z = 0.

Thus, -3z = 6, and z = -2.

The solution set is (0, 3, -2). You should check this by substitution.

3 0
3 years ago
Subtract 19/12 - 3/4
AfilCa [17]
<h2>◇Answer : </h2>

\rm \frac{19}{12}  -  \frac{3}{4}  =  \frac{9}{12}  -  \frac{9}{12}  =  \frac{9 - 9}{12}  =  \frac{0}{12} =  \bf0 \:  \: (done.)

4 0
2 years ago
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What are the roots of the equation? x^2−x−42=0 Enter your answers in the boxes. x = and x =
Natasha_Volkova [10]
Your roots are x=7 and x=-6
8 0
3 years ago
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