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Pavlova-9 [17]
4 years ago
7

Please answer! Solve for X

Mathematics
2 answers:
Sedbober [7]4 years ago
4 0

Answer:

x = 3

Step-by-step explanation:

We can solve this by using ratios of similar triangles

3           x

------ = ------------

3+9           12

3           x

------ = ------------

12           12

x must equal 3 to keep the ratios the same

trapecia [35]4 years ago
3 0

Answer: x = 3

Step-by-step explanation:

The question involves two triangles,

Big triangle AED,

small triangle ABC.

Both triangles are similar and

AED has base of 9 + 3 = 12 and heught of 12

ABC has base of 3 and height of x

To find x we equate the ratios of their height to their base

x/3 = 12/12

x/3 = 1

x = 3

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aliya0001 [1]

Answer:hey there! i can help you

Step-by-step explanation:since you already have the given information that 111 is there you know that there are 180 degrees in a triangle so therefore 94+41 is 135 so 135-180 gives you 45.from there evaluate.it is a straight line 180-94 is 86 so, x=86

6 0
2 years ago
Read 2 more answers
Consider the functions f(x) = 2x + 1 and g(x) = x^2 − 10 What is the value of f[g(3)]?
HACTEHA [7]

Answer:

-1

Step-by-step explanation:

Tip: Remember to always start from the inside, which would be g(3), in this case.

The first step in solving this problem is to solve for g(3).

To accomplish this, you must substitute 3 for x into the given equation g(x) = x^2 - 10

  • g(3) = 3^2 - 10
  • g(3) = 9 - 10
  • g(3) = -1

The next step is to substitute the answer of g(3), -1, for x in the given equation f(x) = 2x + 1.

Because the equation is asking for f[g(3)], it becomes f(-1) because g(3) = -1.

  • f(-1) = 2(-1) + 1
  • f(-1) = -2 + 1
  • f(-1) = -1

Therefore, f[g(3)], or f(-1), equals -1

6 0
3 years ago
Help me with work = brainlist
notka56 [123]

Answer:

13 is 90

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7 0
4 years ago
Simplify the expression: –3(5z − 9
MariettaO [177]

Answer:

-15z+27

Step-by-step explanation:

-3x5z      -3x-9

4 0
3 years ago
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You have learned several methods for solving a system of equations. First, rank the methods in order of preference, noting which
kifflom [539]
Methods for solving a system of equations:
- elimination
- substitution
- augmented matrix

Ranks of method ( number one being the most preferred method)
1) elimination
2) substitution
3) augmented matrix


Elimination is my preferred method because it is simple and easy to work out and hard to get wrong.


Augmented matrix is my least preferred method because it is easy to get wrong and it requires complex steps to solve a simple equation.

Hope this helps ;)


6 0
3 years ago
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