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Sonja [21]
3 years ago
8

Cuanto es 5+2x=5x - 7

Mathematics
1 answer:
pychu [463]3 years ago
7 0
Es 4
X=4
hope i helped
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Y+5=-(x+5) in standard form
swat32

1. y+5=-x-5

2. y=-x-5-5

3.y=-x-10

4. y=x-10

_______________________

1. distribute negative sign

2. move the constant to the right and change the sign

3. -5-5 equals -10, bring everything down

4. change the sign of the x to positive, the equation is in standard form

5 0
3 years ago
A department store uses a markup of 40%. Calculate the selling price of a shirt that cost the retailer $25.
drek231 [11]
The answer is a. $35. First you multiply 25 by .40. Then you add the product to 25.
8 0
3 years ago
Can somebody help me with this math problem?
Travka [436]

Answer:

integer and rational

Step-by-step explanation:

hfjbawenjrcuwit3wrjm3iowrmkfw3klarmfwesdjkncfkelrnmfKWCNRQJWKSRNCJKWrnq

4 0
3 years ago
Why did 6 run away from 7
raketka [301]

Answer: Because 7 8 9

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find vertex of f(x)=(x+3)(x-5)
astra-53 [7]

The x coordinate of the vertex will be the average of the two zeros, here -3 and 5, so x=(-3+5)/2 = 1, f(1)=(1+3)(1-5) = -16.

Answer: (1, -16)

Let's do it some other ways.  How about completing the square to turn f in to vertex form?

f(x) = (x+3)(x-5) = x² - 2x - 15 = (x² - 2x + 1) - 1 - 15 = (x-1)² - 16

and now we can read off (1, -16) as the vertex.

The other method is the vertex is x= - b/2a =  - (-2)/2(1) = 1.

Three methods, same answer. Good.

4 0
3 years ago
Read 2 more answers
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