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daser333 [38]
3 years ago
8

How do u simplify this expression 8.9-1.4x+(-6.5x)+3.4?

Mathematics
1 answer:
Mumz [18]3 years ago
7 0

Answer:

-5.1x + 12.3

Step-by-step explanation:

Combine like terms:  first, combine the x terms, obtaining -5.1x.

Next, combine the constants, obtaining 12.3.

The simplified expression is -5.1x + 12.3

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Find the smallest value of $x$ such that $x^2 + 10x + 25 = 8$.
Mashutka [201]

Answer:

-5 -√8  or ≈ -7.83

Step-by-step explanation:

<u>Solving the quadratic equation, to find its roots:</u>

  • x^2 + 10x + 25 = 8           ⇒ The left side is perfect square
  • (x+5)^2=8                         ⇒ Getting square root of both sides
  • x+5 = ± √8                       ⇒ There are 2 roots
  • x = - 5 ± √8

<u>The smallest root is:</u>

  • x= -5 - √8 ≈ -7.83
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3 years ago
What are the coordinates of point W" on the final image?
Virty [35]

Answer:

(3,8)

Step-by-step explanation:

The point W of the pre-image is at (1, 6).

The figure went through two transformations.

The first is a reflection in the y-axis.

We just negate the coordinate of W to get;

W'(-1,6)

The next transformation is the translation by the rule.

W'(x,y)\to W''(x+4,y+2)

W'( - 1,6)\to W''( - 1+4,6+2)

Therefore W'' has coordinates (3,8)

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