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Crazy boy [7]
3 years ago
10

Write each product using an exponent. 9 × 9 × 9 × 9

Mathematics
2 answers:
vampirchik [111]3 years ago
7 0

Answer:

9^4

Step-by-step explanation:

The number 9 is timed for 4 times (sorry for my broken english as my english is bad)

ki77a [65]3 years ago
6 0

Answer:

9^4 is what you’re looking for right?

Step-by-step explanation:

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This is impossible to answer without knowing what the sets A and B contain (and what ξ even refers to - universal set?).

However, we have

(A U B)' = A' ∩ B'

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If ξ is indeed the universal set, then both A U A' = ξ and B U B' = ξ, so we end up with ξ ∩ ξ = ξ.

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3 years ago
Solve for x: ( sqrt 7) ^ 6x = 49 ^ (x-6)
LiRa [457]
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8 0
3 years ago
Suppose a railroad rail is 3 kilometers and it expands on a hot day by 15 centimeters in length. Approximately how many meters w
earnstyle [38]

Answer:

Answer:  13.4 m

Step-by-step explanation:

For small angles, x, in radians,

tan(x) ≈ sin(x) = x

Use this to create an approximate diagram for the problem as shown in the figure below.

The actual deflected shape is parabolic, but it is approximated by an isosceles triangle with small equal angles.

The extend length is 3 km + 12 cm, which is 

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Let h+  the rise of the center of the rail above ground.

From the Pythagorean theorem, obtain

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h = 13.4 m, which is about 0.9% of the original length.

Read more on Brainly.com - brainly.com/question/5596356#readmore

6 0
2 years ago
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