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2 years ago

-4|x +3| = -28 I can’t figure it out ):

2 answers:

5 0

Answer

X=4 or X= - 10

Step one divide both sides by -4

-4(|x+3|) over -4 = -28 over -4

|x+3|=7

We know either

X+3=7 or x+3=-7

X+3=7 (possibility 1)

X+3-3= -7 - 3 (subtract three from both sides)

X=-10

Answer

X=4 or X=-10 both are the correct answer it could go either way

SIZIF [17.4K]2 years ago

3 0

Answer:

Step-by-step explanation:

-4|x +3| = -28

|x +3| = 7

x ∈ [4, -10]

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Compare 2/3 and 2/5 right one or both of the fractions so they have the common denominator use greater than less than or equal t

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Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

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2 years ago

Find the angle θ between u = <7, –2> and v = <–1, 2>.

Dmitry_Shevchenko [17]

The angle between two vectors is:

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Magnitude of u = SQRT(7^2 + -2^2) = SQRT(49 +4) = SQRT(53)

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7 0

3 years ago

Read 2 more answers

The angles 3x+6 and 5x + 6 are supplements. What are the two angles

yarga [219]

Answer:

x = 21

Step-by-step explanation:

Step 1: Make an expression

Since they are supplements, that means that they add up to 180 degrees.

3x + 6 + 5x + 6 = 180

Step 2: Combine like terms

3x + 6 + 5x + 6 = 180

(3x + 5x) + (6 + 6) = 180

8x + 12 = 180

Step 3: Subtract 12 from both sides

8x + 12 - 12 = 180 - 12

8x = 168

Step 4: Divide both sides by 8

8x / 8 = 168 / 8

x = 21

Answer: x = 21

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2 years ago