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KengaRu [80]
3 years ago
9

△ACD∼△BED What is the value of x?

Mathematics
1 answer:
slega [8]3 years ago
4 0

Answer:

C. 5

Step-by-step explanation:

Triangle BED is enlarged by scale factor 4.

(25-x)/4 = x

Multiply both sides by 4.

25-x = 4x

Add x on both sides.

25 = 5x

Divide both sides by 5.

5 = x

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Solve the equation for x by graphing -2x + 3 = -3(-x) - 2
adoni [48]

Answer:

  x = 1

Step-by-step explanation:

There are a couple of ways to solve this. One is to graph the left side of the equation, graph the right side of the equation, and look for the point where those graphs intersect. It is at x = 1. The first attached graph shows this solution.

__

Another method for solving such an equation is to subtract one side from the other and look for the value of x that makes the resulting expression zero.

  (-2x +3) -(-3(-x) -2) = 0

A graphing calculator doesn't need to have this simplified. If it is simplified, it becomes ...

  -5x +5 = 0

So, the graphed line is y = -5x+5. Its x-intercept is x=1, the solution of the original equation. The graph of this is shown in the second attachment.

6 0
3 years ago
What is 247039 rounded to the nearest thousand
lisabon 2012 [21]
That means the thousands number will either be the same or 1 higher based on the hundreds place & everything after the thousands place will be 0s
247,000
8 0
3 years ago
Find the degree measure of each angle of the triangle
Karo-lina-s [1.5K]

Answer:

51,51 and 78

Step-by-step explanation:

3x+9=4x-5

3x=4x-14

-x=-14

x=14

8 0
2 years ago
Read 2 more answers
Answer this please!​
Troyanec [42]

f(x) = 4x + 3

That's one-to-one, a linear function that will give a different f(x) for each different x.

For the inverse let's swap x and y and solve for y

x = 4y + 3

x - 3 = 4y

y = (x- 3)/4

That's the inverse,

Answer:  (x- 3)/4, second choice

The domain and range of the inverse is all real numbers.  It's two lines; I'll leave the graphing to you.

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What is the question?
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