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musickatia [10]
3 years ago
7

How do I solve this problem?

Mathematics
1 answer:
nexus9112 [7]3 years ago
5 0
Subtract the second equation from the first equation.
x = -1
Plug -1 back in to either equation and solve for y.
3(-1) + y =-10
-3 + y = -10
Add 3 to both sides
y = -7
CHECK
3(-1) -7 = -10
2(-1) -7 = -9
(-1, -7)
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Can u guys make a story with this graph good luck this is velocity ​
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Yeahh I could do it
8 0
2 years ago
Erify that f has an inverse. then use the function f and the given real number a to find (f −1)'(a). (hint: see example 1. if an
zhannawk [14.2K]

The function

... f(x) = (x+2)/(x-1) = 1 + 3/(x-1)

is symmetrical about the line y=x, hence is its own inverse.


We can evaluate the desired derivative directly.

... f'(x) -3/(x-1)²

so f'(2) is

... f'(2) = -3/(2-1)²


(f^{-1})(2)=-3

8 0
3 years ago
How do you work out 5 2/3 - 2 3/4 ???
loris [4]
Hi,
i worked out the problem and I attached the picture  

6 0
3 years ago
Re-solve please.<br><br> 2 5/6 + (-1 4/12) =
elena-s [515]

Answer:

1.5 as decimal, 1 1/2 as a fraction

Step-by-step explanation:

1. convert 2 5/6 & (-1 4/12) to a improper fraction.

17/6 and  -16/12

2. multiply 17/6 by 2 to match -16/12's denominator

17/6 * 2 = 34/12

We now have

34/12 + -16/12

A positive number plus a negative number is the same thing as subtraction so we remove the negative sign and replace the plus with a minus sign.

We have:

\frac{34}{12}-\frac{16}{12}

Now solve. 34-16 = 18

our answer is 18/12

6 0
2 years ago
Read 2 more answers
What is the value of x?
Licemer1 [7]

Answer:

D. 16

Step-by-step explanation:

1. Because these are vertical angles (opposite pair of angles that are formed by intersecting lines), these are congruent. That means (8x-8) = (7x+8).

2. (Solving)

Step 1: Subtract 7x from both sides.

  • 8x-8-7x=7x+8-7x
  • x-8=8

Step 2: Add 8 to both sides.

  • x - 8 + 8 = 8 + 8
  • x = 16

Step 3: Check if solution is correct.

  • 8(16)-8=7(16)+8
  • 128-8 = 112+8
  • 120 = 120

Therefore, the answer is D. 16.

5 0
3 years ago
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