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3 years ago

If x + 3 = 9 then x = A: 3 B: 9 C: 12 D: 27 E: none of the above

Mathematics

2 answers:

Yuki888 [10]3 years ago

7 0

Answer:

Step-by-step explanation:

do 9-3 and it's gonna be 6

Scorpion4ik [409]3 years ago

3 0

Answer:

E: non of the above

Step-by-step explanation:

you subtract 3 from 9 and your answer is 6 so x=6

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Write the interval using interval notation to describe the set of values shown above.

jenyasd209 [6]

The interval on the number line is (-∞, 2) U [3, ∞)

<h3>How to determine the interval?</h3>

From the number line, we have the following inequalities

x < 2 and x ≥ 3

In inequalities, < and > are represented by brackets i.e. ( and )

While ≤ and ≥ are represented by square brackets i.e. [ and ]

So, we have:

x < 2 and x ≥ 3 = 2) and [3

The intervals must be closed and opened with infinity symbols.

So, we have:

x < 2 and x ≥ 3 = (-∞, 2) and [3, ∞)

Replace and with U

x < 2 and x ≥ 3 = (-∞, 2) U [3, ∞)

Hence, the interval on the number line is (-∞, 2) U [3, ∞)

Read more about interval notation at:

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1 year ago

Find the distance d from (6.1, 5.9) to (-5.9, -4.1) .

photoshop1234 [79]

Distance formula:
√(x1-x2)^2+(y1-y2)^2

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3 years ago

The midpoint of AB is M (2,0). If the coordinates of A are, (-3, 3), what are the coordinates of B?

gregori [183]

Given:

M is the midpoint of AB.

M(2,0) and A(-3, 3).

To find:

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Solution:

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Let the coordinates of point B are (a,b). Then, using the midpoint formula, we get

$(2,0)=\left(\dfrac{-3+a}{2},\dfrac{3+b}{2}\right)$

On comparing both sides, we get

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And,

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3 years ago

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guajiro [1.7K]

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