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3 years ago

Solve. -2(x - 1) < 18

Mathematics

1 answer:

Igoryamba3 years ago

5 0

Answer:

x > -8

Step-by-step explanation:

Divide each term by -2

x - 1 > -9

Move all terms not containing x to the right

x > - 8

Results

Inequality form = x > - 8

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A line has a rise of 6 and a slope of 1/20. What is the run? 30 90 120

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Answer: It is 120 im pretty sure it is

Step-by-step explanation:

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2 years ago

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Verify that -tan2x = (2tanx) / (sec^2x - 2)

sashaice [31]

Answer:

Below.

Step-by-step explanation:

- tan 2x = -2tanx / (1 - tan^2x)

Using the identity tan^2x = sec^2x - 1 and substituting for tan^2x:

- tan 2x = -2 tanx / (1 - (sec^2x - 1))

= 2 tanx / ( - 1(sec^2x + 2))

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3 years ago

If P( A or B) = 2/5, P(B)=1/4 and P( A and B) = 1/10 find P(A)

natulia [17]

Answer:

p(a) = -3/20

Step-by-step explanation:

p ( a +b) = p(a)+p(b)

1/10= p(a) +1/4

1/10 - 1/4 = p(a)

p(a) = -3/20

5 0

2 years ago

Does anyone know how to do this?

Scilla [17]

Wouldn’t number seven be

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6 0

3 years ago

Geometry

Kobotan [32]

Answer: UV = 52

Concept:

Additive property of length, or the segment addition postulate, states that given 2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

Solve:

Given information

TU = 4x

UV = 2x + 14

TV = 7x - 5

Given expression deducted from the additive property of length

TV = TU + UV

Substitute values into the expression

7x - 5 = 4x + 2x + 14

Combine like terms

7x - 5 = 6x + 14

Subtract 6x on both sides

7x - 5 - 6x = 6x + 14 - 6x

x - 5 = 14

Add 5 on both sides

x - 5 + 5 = 14 + 5

x = 19

Find UV by substituting the value of x

UV = 2x + 14 = 2 (19) + 14 = $\boxed{52}$

Hope this helps!! :)

Please let me know if you have any questions

5 0

2 years ago