1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oduvanchick [21]
2 years ago
10

By graphing both sides of the equation, determine whether the following is an identity:

Mathematics
2 answers:
eimsori [14]2 years ago
4 0

Answer:

It is not an identity

Step-by-step explanation:

If you graphic the two equations (left and right) separately, if they are an identity, they will be the same graphic, which is not true in this case.

Another way in order to know if an equation is an identity, you can replace some values ​​at x, for example 2 values:

X=30

X=60

And now we substitute in the equation, like this:

1+sec^2(30)=tan^2(30)

2,33=0,33 this is not equal on both sides

1+sec^2(60)=tan^2(60)

5=3 this is not equal on both sides

And if the results for each number x are the same on both sides of the equation, it is an identity. In this case they are different.

Alex2 years ago
3 0

Graphing is overkill... Let x=0. Then \sec0=1, while \tan0=0. But 1+1=2\neq0, so this is not an identity.

You might be interested in
HELPPP
lana [24]

Answer:

so what are we trying to figure out?

Step-by-step explanation:

4 0
2 years ago
3. For the equation-4y = &amp;r, what is the constant of variation? (1 point)<br> ООО<br> 02
alexandr1967 [171]

Answer:

3).

- 4y = 8x \\  \frac{y}{x}  =  \frac{8}{ - 4}  \\  \frac{y}{x} =  - 2 \\ y =  - 2x \\ hence \: constant \: is \:  - 2

4).

y \alpha x \\ y = kx \\ where \: k \: is \: the \: constant \: of \: proportionality \\ when \: y = 24 \: and \: x = 8 \\ substitute \: in \: y = kx \\ 24 = 8k \\ k =  \frac{24}{8}  \\ k = 3 \\ value \: of \: constant = 3

If it was by 10, k = 3 by 10

k = 30

5).

general \: equation \: of \: line  \\ y = mx + c \\ but \: m =  \frac{2}{3}  \: and \: c = 9 \\ substitute \: for \: m \: and \: c \: in \: y = mx + c \\ y =  \frac{2}{3} x + 9 \\ alternatively \\ 3y = 2x + 27

7 0
3 years ago
1/2(8x-6) = x + 9 solve ... hurry
QveST [7]

Answer:

x=4

Step-by-step explanation:

4x-3=x+9

4x-x-3=9

4x-x=9+3

3x=9+3

3x=12

3/3

12/3=4

x=4

5 0
3 years ago
Read 2 more answers
How to solve 3y+6=5y-18
MariettaO [177]

Answer:

y = 14

Step-by-step explanation:

move 5y over to the left and you should get -2y +6=-18. subtract 6from both sides and you will now have -2y=-24. divide bothe sides from -2 and you will get y=14

4 0
3 years ago
Read 2 more answers
Kelly has 50% more money than Luis. Luis has $40. If Luis gets $8 more, will Kelly still have more money than Luis? What percent
OverLord2011 [107]

Answer:

Kelly will still have more money than Luis

Kelly will have 25% more

Step-by-step explanation:

Let x represent the amount of money Kelly has and y, Luis

Luis has $40

and Kelly has 50% more money than Luis

Therefore, Kelly has;

50% of $40 + $40

= 0.5*40 + 40

= $60

If Luis gets $8 more, Luis will have;

$8 + $40 = $48

since Luis' $48 is less than Kelly's $60, Kelly will still have more money than Luis

Difference in their money = $60 - $48 = $12

Therefore, Kelly will have;

12/48 * 100 more than Luis

= 25% more

8 0
3 years ago
Other questions:
  • Five notebooks cost $20 at this rate how much would 4 notebooks coat?
    7·2 answers
  • In circle A shown below, Segment BD is a diameter and the measure of Arc CB is 48°:
    6·2 answers
  • HELP ASAP! <br> What is the measure of the diameter of A?
    10·1 answer
  • Under a dilation, the point (3,5) is moved to (6,10) What is the scale factor of the dilation?
    13·1 answer
  • The pool at the apartment building is 30 feet long, 20 feet wide, and 5 feet deep. It has been filled 4 feet deep. How many more
    11·1 answer
  • How many thumbs down votes did the video get
    9·1 answer
  • Write an equation of the line below.
    13·2 answers
  • How do you find the system of equations for a graph?
    7·2 answers
  • Use pic for more info
    11·1 answer
  • Simplify.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!