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mixas84 [53]
3 years ago
11

Which is the most efficient first step to solve for x in the equation 3.7x-18=-4.3x-34?

Mathematics
2 answers:
Varvara68 [4.7K]3 years ago
7 0

The only valid answer is adding 4.3 x to both sides of the equation. All of the other choices would not help you solve for x.

irga5000 [103]3 years ago
6 0

Answer:

B. Add 4.3x to both sides of the equation.

Step-by-step explanation:

We have been given an equation 3.7x-18=-4.3x-34. We are asked to choose the most efficient first step to solve for x in the equation.

To solve an expression we need to separate variables and constants on different sides of equation.

To solve our given equation we need to add 4.3x to both sides of the given equation. After adding 4.3x we will get,

3.7x+4.3x-18=-4.3x+4.3x-34

8.0x-18=-34

Therefore, option B is the correct choice.

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Read 2 more answers
PLEASE ANSWER ANY PROBLEM ASAP THANK YOU SO MUCH
Mashcka [7]

Answer:

1) No

2) Yes

3) angle UXS = 120 degrees

4) arc CB = 40 degrees

Step-by-step explanation:

If AB is tangent to the circle, then angle at A would be 90 degrees.

1)

Is 13^2 + 14.6^2 = 19.4^2?

169 + 213.16 = 376.36      No

2)

Is 8^2 + 6^2 = 10^2?

64 + 36 = 100      Yes

3)

arc WS = arc VU + arc TU = 113 degrees

arc ST = arc WV because their chords cross making a pair of vertical angles.

full circle = 360 degrees

360-113 - 113 = 134 degrees

134/2 = 67 degrees for arc ST

arc STU = 67 + 53 = 120 degrees

Angle UXS = 120 degrees

4) arc CB = arc FB =  40 degrees because their chords cross making a pair of vertical angles.

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3 years ago
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