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3 years ago

X−1.2=3 what is x HELP ASAP K-12 8TH GRADE

Mathematics

2 answers:

Shalnov [3]3 years ago

4 0

Hello! :)

To find what is x we will add 1.2 to both sides

x - 1.2 + 1.2 = 3 + 1.2

x = 4.2

Hope this helped you!

THEDIPER

NARA [144]3 years ago

3 0

hi! here is ur answer

x-1.2=3

x=3+1.2

x=4.2

hope it helps you!

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Hatshy [7]

Answer:

1, 3, and 4 would be correct answers

Step-by-step explanation:

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5.) x + x + x + y + y + y + y + y + 1 + 1 = 3x + 5y + 2

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2 years ago

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First blank: Substitution or transitive property of equality

Second blank: Subtraction property of equality

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2 years ago

What is the length of the arc when the degree measure is 60° and the radius is 7?

shepuryov [24]

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3 years ago

The school chorus has 52 students, which represents 26% of the seventh graders. How many total students are in the seventh grade

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2 years ago

slader (a) Find parametric equations for the line through (4, 1, 8) that is perpendicular to the plane x − y + 4z = 2. (Use the

Pavel [41]

Answer:

(x(t), y(t), z(t)) = (4 + t, 1 - t, 8 + 4t)

xy - plane (x, y, z) = (2, -1, 0)

yz - plane (x, y, z) = (0, 5, -8)

xz - plane (x, y, z) = (5, 0, 12)

Step-by-step explanation:

The given point (x, y ,z) = (4, 1, 8)

The plane x -y + 4z = 2

Normal vector (n) = < 1, -1, 4 >

The equation of line through point (4, 1, 8) and the plane is:

(x(t), y(t), z(t)) = (4, 1, 8) + t(1, -1, 4)

(x(t), y(t), z(t)) = (4 + t, 1 - t, 8 + 4t)

Any point on the line P(x, y, z) = ( 4 + t, 1 - t, 8 + 4t)

xy-Pane ⇒ z = 0

8 + 4t = 0

4t = - 8

t = -8/4

t = -2

∴

(x, y, z) = (4 - 2, 1 - 2, 8 + 4(-2))

(x, y, z) = (2, -1, 0)

yz-plane ⇒ x = 0

4 + t = 0

t = -4

∴

(x, y, z) = (4 + (-4) , 1-(-4), 8 + 4(-4)

(x, y, z) = (0, 5, -8)

xz-plane ⇒ y = 0

1 - t = 0

-t = -1

t = 1

∴

(x, y, z) = ( 4 + 1, 1 - 1, 8 + 4(1) )

(x, y, z) = (5, 0, 12)

6 0

3 years ago