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andrew-mc [135]
2 years ago
8

A square rotated about its center by 360º maps onto itself at: a) 1 B) 2 C) 3 D) 4 different angles of rotation. You can reflect

a square onto itself across A) 2 B) 4 C) 8 D) 16 different lines of reflection.
Mathematics
2 answers:
grandymaker [24]2 years ago
4 0

Answer:  A square rotated about its center by 360º maps onto itself at D) 4 different angles of rotation. You can reflect a square onto itself across B) 4 different lines of reflection.

Step-by-step explanation:

A square is a geometric figure which has all its four sides equal and all its interior angles are right angles( 90^{\circ}) .

Therefore, it can be rotated about its center by 360^{\circ} .

It maps onto itself at 4 different angles of rotation ( at every 90^{\circ} angle).

We can reflect a square onto itself across 4 different lines of reflection (2 across the non-parallel sides and 2 across the vertices of the square).

NeTakaya2 years ago
3 0

Answer:

For plato: Blank one is four and blank two is also four.

:)

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2 years ago
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Answer:

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Step-by-step explanation:

4 0
2 years ago
Ralph is paid twice per month. His work offers a flexible-spending account to be used for medical expenses. This plan allows Ral
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In this question, we're assuming Ralph had 0 in his saving funds to start with.

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Divide 1200 (the cost of the glasses) by 24 (the amount of times Ralph is given his check)

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A is your answer.

Have an awesome day! :)
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2 years ago
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3 0
2 years ago
If the heights of 300 students are normally distributed with mean 68.0 inches and standard deviation 3.0 inches, how many studen
Lunna [17]
Given:
μ = 68 in, population mean
σ = 3 in, population standard deviation

Calculate z-scores for the following random variable and determine their probabilities from standard tables.

x = 72 in:
z = (x-μ)/σ = (72-68)/3 = 1.333
P(x) = 0.9088

x = 64 in:
z = (64 -38)/3 = -1.333
P(x) = 0.0912

x = 65 in
z = (65 - 68)/3 = -1
P(x) = 0.1587

x = 71:
z = (71-68)/3 = 1
P(x) = 0.8413

Part (a)
For x > 72 in, obtain
300 - 300*0.9088 = 27.36

Answer: 27

Part (b)
For x ≤ 64 in, obtain
300*0.0912 = 27.36

Answer: 27

Part (c)
For 65 ≤ x ≤ 71, obtain
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Answer: 204

Part (d)
For x = 68 in, obtain
z = 0
P(x) = 0.5
The number of students is
300*0.5 = 150

Answer: 150

3 0
2 years ago
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