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Aneli [31]
3 years ago
13

Which equation is an identity

Mathematics
1 answer:
lubasha [3.4K]3 years ago
8 0
This is from google:
An equation that is true for every value of the variable is an identity. The equation 2x = 2x is an identity.
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In percent of change what is 10 to 20
djyliett [7]
I think it may either be 10 or 100.. do you have options to choose from?
5 0
2 years ago
Write a linear function f with the values f(0)=−3 and f(7)=11.
kotegsom [21]

Answer:  f(x)= 2x -3

Step-by-step explanation:

Using the given information we can come up with two points that will be use to find the slope and y-intercept.  

If you input 0 you get -3  so the point will be (0,-3)

If you input 7  you get 11  so the point will be (7,11)

Now use the points to find the difference in their y coordinates and divide it by the difference in their x coordinates to find the slope.

y coordinates:  -3 - 11 = -14

x coordinates:  0 - 7 = -7

  -14/-7 = 2

Since the slope is two, we will use the slope intercept formula (y = mx +b) to find the b which is the y intercept.

Use one of the points and input its x and y coordinates into the formula including the slope to solve for b.

-3= 2(0) +b

-3 = 0 + b

b = -3  

f(x) is the same as y in the formula, meaning that the equation will be  

 f(x) = 2x -3

8 0
3 years ago
7x 1 1/5 enter answer as a mixed number
Leno4ka [110]

The answer is

8 \frac{2}{5}

6 0
2 years ago
Transitive Property: If 3x + y = 7 and 7 = 5x – 2y, then ___.
dimulka [17.4K]

Answer:

3x+y=5x-y

Step-by-step explanation:

4 0
2 years ago
What is the area of the parallelogram shown
Nezavi [6.7K]

9514 1404 393

Answer:

  60 square units

Step-by-step explanation:

The area is given by the formula ...

  A = bh

The base of this parallelogram is 15 units, and its height is 4 units. The area is ...

  A = (15 u)(4 u) = 60 u²

The area is 60 square units.

5 0
2 years ago
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